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Author SHA1 Message Date
buenosairesam
6dbc83a449 Merge branch 'rig-work' 2026-09-17 00:14:37 -03:00
buenosairesam
730ebaff2f remove profile dependency 2026-09-17 00:14:27 -03:00
25 changed files with 75 additions and 5676 deletions
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6
rig/Makefile
View File

@@ -6,9 +6,9 @@
#
# make cluster up -> ctrl/cluster.sh up
#
# Config layers, weakest first: ctrl/versions.env (pinned toolchain) <
# ctrl/env.d/<profile>.env (cluster shape) < ctrl/.env (local, gitignored) <
# the environment. So `make cluster up PROFILE=client` beats everything.
# Config layers, weakest first: built-in defaults < ctrl/versions.env (pinned
# toolchain) < ctrl/env.d/<profile>.env (optional shape) < ctrl/.env (local,
# gitignored) < the environment. So `make cluster up PROFILE=<name>` beats them all.
#
# Start with: make setup (then: make cluster up && make docs)

25
rig/README.md
View File

@@ -135,17 +135,22 @@ directory beside it.
## Profiles
A profile is the shape of the cluster: how many nodes, which addons, whether the
apiserver audits. They live in `ctrl/env.d/`, and the active one is `PROFILE`.
**rig needs no profile.** With none named it runs on built-in defaults: one node,
no addons, a local registry, the newest Kubernetes version it pins. A profile is
an optional overlay — a file in `ctrl/env.d/`, named by `PROFILE` — for when you
want a different shape.
| Profile | For |
rig ships **examples**, not active profiles, because each one is a use case rather
than something every rig needs. Copy one to use it:
| example | shape |
| --- | --- |
| `minimal` | the default. One node, no addons, boots fast. |
| `client` | the regulated-estate shape — multi-node, audit on, registry mirror. |
| `offline` | air-gapped: everything from a preloaded local registry. |
| `data` | the cabinets an environment asks for. |
| `client.env.example` | multi-node, audit on, images through a mirror of a corporate registry |
| `offline.env.example` | air-gapped: everything from a preloaded local registry |
| `data.env.example` | databases and a scheduler: postgres, redis, airflow |
```bash
cp ctrl/env.d/data.env.example ctrl/env.d/data.env
PROFILE=data make cluster up
PROFILE=data make addons install
make addons # what the active profile wants, and what exists
@@ -156,9 +161,9 @@ restating node count and audit as variables:
| shape | nodes | audit | used by |
| --- | --- | --- | --- |
| `kind-config.yaml.tpl` | 1 | off | `minimal`, `data` |
| `kind-config.audit.yaml.tpl` | 1 | on | `offline` |
| `kind-config.client.yaml.tpl` | 3 | on | `client` |
| `kind-config.yaml.tpl` | 1 | off | the default; the `data` example |
| `kind-config.audit.yaml.tpl` | 1 | on | the `offline` example |
| `kind-config.client.yaml.tpl` | 3 | on | the `client` example |
Both numbers are read back out of the chosen file, so the YAML is the only place
that decides and there is nothing to drift. The layout under `ctrl/k8s/` is the

7
rig/ctrl/.env.example
View File

@@ -1,9 +1,10 @@
# Machine-local config. Copy to ctrl/.env (gitignored) and edit.
# Cluster SHAPE lives in ctrl/env.d/<profile>.env — not here.
# Cluster SHAPE: an optional profile in ctrl/env.d/ — see the *.env.example there.
# The architecture MODEL lives in arch/<name>.json — not here either.
# Which profile in ctrl/env.d/ to build. minimal | client | offline
PROFILE=minimal
# A profile in ctrl/env.d/ to build. Empty means rig's built-in defaults, which
# need no profile at all. Copy an env.d/*.env.example to <name>.env to add one.
PROFILE=
# Cluster name; the kubectl context becomes kind-<CLUSTER>.
# LEAVE THIS UNSET unless you need a name that differs from the directory —

2
rig/ctrl/Dockerfile.deps
View File

@@ -28,7 +28,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
# reads. A kit is one file with its pins frozen in and is proven to run with
# nothing else from rig present — which is exactly what an image needs, and
# `make standalone` keeps it current. Pins are the same in every profile's kit.
ARG PROFILE=minimal
ARG PROFILE=default
WORKDIR /work
COPY standalone/${PROFILE}/rigdeps.sh /work/rigdeps.sh
RUN chmod +x /work/rigdeps.sh

2
rig/ctrl/addons/postgres.sh
View File

@@ -8,7 +8,7 @@
# twice.
#
# Plain manifests rather than a helm chart, matching the other addons: a chart
# repo is a network dependency, and the offline profile exists precisely so
# repo is a network dependency, and the offline example profile exists precisely so
# there is a path with none. The image is pinned in ctrl/versions.env and can be
# preloaded into a local registry like every other image here.
#

5
rig/ctrl/env.d/client.env → rig/ctrl/env.d/client.env.example
View File

@@ -1,3 +1,8 @@
# EXAMPLE PROFILE. rig needs none of these: with no profile it runs on its
# built-in defaults (lib/config.sh). To use this one, copy it to client.env in this
# directory and name it — PROFILE=client in ctrl/.env, or on the command line. It
# then overlays the defaults; anything it does not set, they still supply.
#
# client — the regulated-estate shape. Multi-node so taints, affinity and
# topology are real; apiserver audit on; images through a pull-through cache of
# the corporate registry.

14
rig/ctrl/env.d/data.env → rig/ctrl/env.d/data.env.example
View File

@@ -1,10 +1,10 @@
# data — a cluster with the cabinets an environment asks for.
# EXAMPLE PROFILE. rig needs none of these: with no profile it runs on its
# built-in defaults (lib/config.sh). To use this one, copy it to data.env in this
# directory and name it — PROFILE=data in ctrl/.env, or on the command line. It
# then overlays the defaults; anything it does not set, they still supply.
#
# A cabinet is a public service dropped in as-is — the upstream image,
# unmodified, reachable at a known address. It is declared once and installs on
# either target: a `service.yml` composes it for a laptop, and the addons below
# install the same one here. The names match deliberately — each cabinet.json
# carries a `rig_addon` field pointing at ctrl/addons/<name>.sh.
# data — databases and a scheduler for an environment that needs them: postgres,
# redis and airflow, each an upstream image run unmodified.
#
# Everything lands in the `data` namespace (DATA_NAMESPACE to move it), so
# `make cluster reset` on the app namespace leaves the databases alone.
@@ -18,7 +18,7 @@ KIND_CONFIG=kind-config.yaml.tpl
# Order matters: addons.sh installs in the order listed, and airflow refuses to
# start without a metadata database, so postgres comes first.
ADDONS="metallb postgres redis airflow"
# local, not none — see minimal.env: `none` has no outward-push guard.
# local, not none — see the defaults in lib/config.sh: `none` has no outward-push guard.
REGISTRY_MODE=local
INGRESS_MODE=hostport
DNS_MODE=hosts

21
rig/ctrl/env.d/minimal.env
View File

@@ -1,21 +0,0 @@
# minimal — the default. One node, no addons, no registry.
# Assumes nothing and boots fast. Start here; move to client.env when you need
# the regulated behaviours.
#
PROFILE_NAME=minimal
K8S_VERSION=v1_36
KIND_CONFIG=kind-config.yaml.tpl
ADDONS=""
# local, not none: `none` leaves the cluster with no registry to push to, and an
# unqualified image name then means docker.io/library/<name>. In a regulated
# estate that is a disclosure risk, not a convenience trade — so the default
# carries the guard even though it costs one container.
REGISTRY_MODE=local
INGRESS_MODE=hostport
DNS_MODE=hosts
# Ports are deliberately NOT set here. They derive from the directory name so
# several environments coexist — see ctrl/ports.sh, and `make ports` to see the
# block this one gets. A fixed default here would collide with whatever else the
# machine happens to be running; 8080 in particular is rarely free.

5
rig/ctrl/env.d/offline.env → rig/ctrl/env.d/offline.env.example
View File

@@ -1,3 +1,8 @@
# EXAMPLE PROFILE. rig needs none of these: with no profile it runs on its
# built-in defaults (lib/config.sh). To use this one, copy it to offline.env in this
# directory and name it — PROFILE=offline in ctrl/.env, or on the command line. It
# then overlays the defaults; anything it does not set, they still supply.
#
# offline — air-gapped. Everything comes from a local registry that was loaded
# ahead of time; nothing reaches the internet. Pair with the deps-full image
# (DEPS_SOURCE=baked) so the toolchain install is offline too.

10
rig/ctrl/k8s/README.md
View File

@@ -28,12 +28,12 @@ not restate what the YAML already says.
| file | nodes | audit | profiles |
| --- | --- | --- | --- |
| `kind-config.yaml.tpl` | 1 | off | `minimal`, `data` |
| `kind-config.audit.yaml.tpl` | 1 | on | `offline` |
| `kind-config.client.yaml.tpl` | 3 | on | `client` |
| `kind-config.yaml.tpl` | 1 | off | the default; the `data` example |
| `kind-config.audit.yaml.tpl` | 1 | on | the `offline` example |
| `kind-config.client.yaml.tpl` | 3 | on | the `client` example |
A profile picks one with `KIND_CONFIG` in `ctrl/env.d/<profile>.env`. Adding a
shape is adding a file — there is no dispatcher to edit.
With no profile the default shape is used; a profile picks another with
`KIND_CONFIG`. Adding a shape is adding a file — there is no dispatcher to edit.
Audit is an apiserver flag and therefore fixed at creation: changing it is
`make cluster reset`, not a re-apply.

5
rig/ctrl/lib/config.sh
View File

@@ -5,10 +5,11 @@
# definition of how the config layers compose, which every script has to agree
# on exactly. Precedence, weakest first:
#
# built-in defaults below; fill only what nothing else set
# ctrl/versions.env pinned toolchain + image digests (committed)
# ctrl/env.d/<profile> cluster shape (committed)
# ctrl/env.d/<profile> cluster shape — OPTIONAL, examples ship as *.env.example
# ctrl/.env machine-local values and secrets (gitignored)
# the caller's env `make cluster up PROFILE=client` (always wins)
# the caller's env `make cluster up PROFILE=<name>` (always wins)
#
# That last rule is why this is more than a few `source` lines: .env sets
# PROFILE, so without snapshotting it would silently override the PROFILE the

12
rig/docs/index.html
View File

@@ -308,8 +308,8 @@ make cluster up <span class="c"># build the cluster for the active profile</spa
attempt was interrupted before the CNI was installed, running it again
finishes the job rather than reporting "already exists" and leaving every
node permanently NotReady.</p>
<pre><code>make cluster up <span class="c"># default profile</span>
make cluster up PROFILE=client <span class="c"># three nodes, audit on, cached registry</span>
<pre><code>make cluster up <span class="c"># built-in defaults — no profile needed</span>
make cluster up PROFILE=client <span class="c"># after copying env.d/client.env.example: three nodes, audit, cached registry</span>
make cluster reset <span class="c"># destroy and rebuild — the only way to change CNI or audit</span>
</code></pre>
@@ -382,7 +382,7 @@ make setup core <span class="c"># same distinction, via setup</span>
<pre><code>make deps-image full <span class="c"># bakes every binary into the image</span>
docker save …-deps:full | gzip &gt; rig.tgz
<span class="c"># carry that one file in, then:</span>
docker load &lt; rig.tgz &amp;&amp; make cluster up PROFILE=offline
docker load &lt; rig.tgz &amp;&amp; make cluster up PROFILE=offline <span class="c"># from env.d/offline.env.example</span>
</code></pre>
</div>
</section>
@@ -408,9 +408,9 @@ docker load &lt; rig.tgz &amp;&amp; make cluster up PROFILE=offline
<code>ctrl/.env</code> if you want it fixed rather than derived.</p>
<h3>Configuration layers</h3>
<p>Weakest first, later wins: pinned versions → the profile →
<code>ctrl/.env</code> → the environment. So
<code>make cluster up PROFILE=client</code> always beats every file.</p>
<p>Weakest first, later wins: built-in defaults → pinned versions → a
profile, if you name one → <code>ctrl/.env</code> → the environment. So
<code>make cluster up PROFILE=&lt;name&gt;</code> always beats every file.</p>
</div>
</section>

61
rig/standalone/README.md
View File

@@ -1,61 +0,0 @@
# standalone — rig as single files, one folder per profile
**Everything in the `<profile>/` folders here is generated. Do not edit it.**
It is rig's own tools flattened into single self-contained files, with one
profile's configuration resolved in, for a machine the full rig is not going to.
```
standalone/<profile>/rigdeps.sh rig's toolchain installer (ctrl/deps.sh)
standalone/<profile>/rigmini.sh rig's memory tool (ctrl/mem.sh)
standalone/<profile>/Makefile shorthand for calling them
```
One folder per file in `ctrl/env.d/`. Pick the profile you mean to run and copy
that folder; nothing else from rig is needed. The scripts run without the
Makefile.
```bash
bash rigdeps.sh detect # report the host and toolchain; changes nothing
bash rigdeps.sh install dev # download, verify, install into ~/.local/bin
bash rigmini.sh status # advertised memory and what caps it; safe
bash rigmini.sh all # measure, then weigh it against this profile
make deps / make mem # the same, via the Makefile
```
`rigmini.sh push` and `all` deliberately consume memory. Run `status` first, and
only run them somewhere other processes may be squeezed.
## Your own setup, somewhere else — `export`
The folders here are rig's **profiles**, identical on any machine. To take the
setup **this machine runs** instead — its profile plus the choices in its local
`ctrl/.env` (ports, manifest directory, mirror mode) — export it:
```bash
make standalone export ~/rig-kit # one kit, outside the repository
```
An export carries your **choices, never your credentials**. Anything in `ctrl/.env`
that is not a setting a caller may override — registry logins, a mirror URL — is
left out, and the export lists those names so you know what to set on the target.
It refuses to write inside the repository: it reflects one machine, and the
repository holds what is true for every machine. `make selftest` proves both with
sentinel values.
## Why generated
These used to be hand-kept copies, and they drifted: the standalone memory tool
said 2 GB per node long after rig had measured 800 MB. Now a kit is a pure
function of rig. It gains nothing rig lacks; improve rig and every kit follows.
```bash
make standalone # regenerate every kit
make standalone check # fail if any kit differs from what rig generates now
```
`make selftest` runs the check, so a kit left behind by a change to rig fails there
rather than on the machine it was copied to.
How the generator stays correct as rig changes shape — it knows no file, function
or variable names, only a marker, a sourcing rule and two config questions, and it
proves each kit stands alone before writing it — is in `ctrl/standalone.sh`.

959
rig/standalone/client/rigdeps.sh
View File

@@ -1,959 +0,0 @@
#!/usr/bin/env bash
# GENERATED by make standalone — do not edit
#
# rigdeps.sh for profile 'client', flattened from:
# ctrl/deps.sh
# ctrl/lib/config.sh
# Edit those and run `make standalone`. Changes made here are lost, and
# `make selftest` fails while this file differs from what rig generates.
# ── from the libraries ──
declare -- CONFIG_OVERRIDABLE=$'PROFILE CLUSTER K8S_VERSION KIND_CONFIG ADDONS\n REGISTRY_MODE INGRESS_MODE DNS_MODE TILT_PORT\n SOURCE ARCH DEPS_SOURCE HTTP_PORT HTTPS_PORT\n REGISTRY_PORT MANIFESTS_DIR'
_config_restore ()
{
local line;
while IFS= read -r line; do
if [ -n "$line" ]; then
eval "export $line";
fi;
done <<< "$1";
return 0
}
default_cluster_name ()
{
local n;
n=$(basename "$(cd .. && pwd)");
n=$(echo "$n" | tr '[:upper:]' '[:lower:]' | tr -c 'a-z0-9-' '-');
n=$(echo "$n" | sed 's/^-*//; s/-*$//');
echo "${n:-rig}"
}
derive_port_base ()
{
local h;
h=$(printf '%s' "$1" | cksum | awk '{print $1}');
echo $((20000 + (h % 200) * 10))
}
render_kind_config ()
{
local host_workdir="${HOST_WORKDIR:-$(cd .. && pwd)}";
sed -e "s|\${CLUSTER}|${CLUSTER}|g" -e "s|\${NODE_IMAGE}|${NODE_IMAGE}|g" -e "s|\${HTTP_PORT}|${HTTP_PORT}|g" -e "s|\${HOST_WORKDIR}|${host_workdir}|g" "$KIND_CONFIG_PATH"
}
# ── configuration, frozen for profile 'client' ──
load_config() {
local k saved=""
for k in $CONFIG_OVERRIDABLE; do
if [ -n "${!k+x}" ]; then saved+="$k=$(printf '%q' "${!k}")"$'\n'; fi
done
declare -gx ADDONS="metallb cert-manager metrics-server"
declare -gx AIRFLOW_IMAGE="apache/airflow:2.10.4"
declare -g AUDIT="on"
declare -gx CERT_MANAGER_VERSION="v1.21.1"
declare -g CLUSTER="rig"
declare -gx COMPOSE_SHA256="db1889184726840f75c4f9c001048430d4f25b3be3cb084d3ddd762bc0aed576"
declare -gx COMPOSE_URL="https://github.com/docker/compose/releases/download/v5.5.1/docker-compose-linux-x86_64"
declare -gx COMPOSE_VERSION="5.5.1"
declare -gx CTLPTL_SHA256="c63a1ec28e60bc3faf6becb76f53355c5cf5e0143dafdd27ad85db5584fa6b1e"
declare -gx CTLPTL_URL="https://github.com/tilt-dev/ctlptl/releases/download/v0.9.4/ctlptl.0.9.4.linux.x86_64.tar.gz"
declare -gx CTLPTL_VERSION="0.9.4"
declare -gx DNS_MODE="hosts"
declare -g HTTPS_PORT="20311"
declare -g HTTP_PORT="20310"
declare -gx INGRESS_MODE="hostport"
declare -gx JQ_SHA256="b1c22172dd303f3be49e935aa56aa48a8b7a46e0bc838b4997d3bb451495870f"
declare -gx JQ_URL="https://github.com/jqlang/jq/releases/download/jq-1.8.2/jq-linux-amd64"
declare -gx JQ_VERSION="1.8.2"
declare -gx K8S_VERSION="v1_36"
declare -gx KIND_CONFIG="kind-config.client.yaml.tpl"
declare -g KIND_CONFIG_PATH="./k8s/kind-config.client.yaml.tpl"
declare -g KIND_CONFIG_SHOWN="ctrl/k8s/kind-config.client.yaml.tpl"
declare -gx KIND_SHA256="50030de23cf40a18505f20426f6a8506bedf13c6e509244bd1fa9463721b0f54"
declare -gx KIND_URL="https://github.com/kubernetes-sigs/kind/releases/download/v0.32.0/kind-linux-amd64"
declare -gx KIND_VERSION="v0.32.0"
declare -g KUBECONTEXT="kind-rig"
declare -gx KUBECTL_SHA256="ebbd080e7c2e275093b55915722043257eb24004363e20acb3c4d71919f88336"
declare -gx KUBECTL_URL="https://dl.k8s.io/release/v1.36.3/bin/linux/amd64/kubectl"
declare -gx KUBECTL_VERSION="v1.36.3"
declare -g MANIFESTS_DIR="ctrl/k8s/overlays/dev"
declare -gx METALLB_VERSION="v0.16.0"
declare -gx METRICS_SERVER_VERSION="v0.9.0"
declare -g NODES="3"
declare -g NODE_IMAGE="kindest/node:v1.36.1@sha256:3489c7674813ba5d8b1a9977baea8a6e553784dab7b84759d1014dbd78f7ebd5"
declare -gx NODE_IMAGE_v1_33="kindest/node:v1.33.12@sha256:3f5c8443c620245e4d355cfe09e96a91ead32ceaa569d3f1ca9edf0cb2fe2ff4"
declare -gx NODE_IMAGE_v1_34="kindest/node:v1.34.8@sha256:02722c2dedddcfc00febf5d27fbeb9b7b2c14294c82109ff4a85d89ac9ba3256"
declare -gx NODE_IMAGE_v1_35="kindest/node:v1.35.5@sha256:ce977ae6d65918d0b58a5f8b5e940429c2ce42fa3a5619ec2bbc60b949c0ac95"
declare -gx NODE_IMAGE_v1_36="kindest/node:v1.36.1@sha256:3489c7674813ba5d8b1a9977baea8a6e553784dab7b84759d1014dbd78f7ebd5"
declare -g NODE_MB="800"
declare -gx POSTGRES_IMAGE="postgres:16-alpine"
declare -gx PROFILE="client"
declare -gx PROFILE_NAME="client"
declare -gx REDIS_IMAGE="redis:7-alpine"
declare -gx REGISTRY_IMAGE="registry:2"
declare -gx REGISTRY_MODE="mirror"
declare -g REGISTRY_PORT="20313"
declare -gx STUB_IMAGE="python:3.12-slim"
declare -g TILT_PORT="20312"
declare -gx TILT_SHA256="e9672b8a18d43501f35dcfe98465969a7db0e436b36cf0c50c7e6f8d40de5fe6"
declare -gx TILT_URL="https://github.com/tilt-dev/tilt/releases/download/v0.37.6/tilt.0.37.6.linux.x86_64.tar.gz"
declare -gx TILT_VERSION="0.37.6"
_config_restore "$saved"
}
# ── end of frozen configuration ──
# ── ctrl/deps.sh ──
# Toolchain installer: detect the host, install a pinned toolchain onto it, then
# report what it could not do.
#
# It never runs the cluster, never uses sudo or apt, and writes only into
# $OUT_BIN (default ~/.local/bin). Everything that would touch the host proper —
# systemd, inotify limits, .wslconfig, docker group — is REPORTED for a human to
# decide on, never performed. That is what makes it safe to run on a machine that
# already has a working setup.
#
# Usage (normally via `make deps`, or directly):
# deps.sh detect # report host facts only, change nothing
# deps.sh list # the pinned versions
# deps.sh verify [core|dev] # run what is installed and see if it works
# deps.sh fetch [core|dev] [--to DIR] # download + verify into DIR
# deps.sh install [core|dev] # detect, fetch, install, report
#
# Tiers: 'core' is kubectl + jq (talk to a cluster); 'dev' adds kind and tilt
# Default is dev.
#
# Runs both inside the installer container and bare on a host. Inside the
# container, host files are read through $HOST_ROOT (mount / as :ro); bare, it
# falls back to /.
set -euo pipefail
# Keep the caller's cwd so a relative --to resolves where the user expects,
# not against ctrl/ once we've moved.
INVOKED_FROM="$PWD"
cd "$(dirname "$0")"
# Pins arrive through load_config like every other setting, not by sourcing
# versions.env here. That is what lets `make standalone` freeze them into a
# one-file installer: configuration has exactly one way in.
# (sourced library inlined above)
load_config
# Resolve a possibly-relative path against the caller's original directory.
abspath() {
case "$1" in
/*) echo "$1" ;;
*) echo "$INVOKED_FROM/$1" ;;
esac
}
OUT_BIN="${OUT_BIN:-$HOME/.local/bin}"
HOST_ROOT="${HOST_ROOT:-/}"
DEPS_SOURCE="${DEPS_SOURCE:-upstream}"
DEPS_ARTIFACTORY_URL="${DEPS_ARTIFACTORY_URL:-}"
BAKED_BIN="${BAKED_BIN:-/opt/rig/bin}"
# Collected by detect(), printed by report_manual() at the very end.
MANUAL=()
# Host FILES (/etc/..., /mnt/c/...) must be read through the mount. Kernel-level
# facts (kernel version, meminfo, inotify) are shared with the container, so the
# container's own view is already the host's.
# A /proc/meminfo field in MB, 0 if the field is absent. MEMINFO exists so the
# tight and does-not-fit branches can be exercised against a real machine's
# numbers from somewhere else; in normal use it is always /proc/meminfo.
mb_of() {
awk -v k="$1:" '$1 == k { printf "%d", $2 / 1024; found = 1 }
END { if (!found) printf "0" }' "${MEMINFO:-/proc/meminfo}"
}
host_file() {
local p="${1#/}"
if [ "$HOST_ROOT" != "/" ] && [ -e "$HOST_ROOT/$p" ]; then
echo "$HOST_ROOT/$p"
else
echo "/$p"
fi
}
# ── the tools this script itself needs ─────────────────────────────────────
arch() {
case "$(uname -m)" in
x86_64|amd64) echo amd64 ;;
aarch64|arm64) echo arm64 ;;
*) uname -m ;;
esac
}
# The pins above are amd64. Rather than download something that cannot execute
# and let it fail as "cannot execute binary file: Exec format error", say so
# here and hand over the commands that produce the right checksums.
require_amd64() {
local a; a=$(arch)
[ "$a" = "amd64" ] && return 0
cat >&2 <<EOF
This machine is ${a} ($(uname -m)); every pin in this script is linux/amd64.
Nothing here would run, so it does not download. To make an ${a} version, the
URLs need the ${a} artifact and the checksums need to come from each project's
own published list — not from these values, and not from a download you did:
curl -sSL https://github.com/kubernetes-sigs/kind/releases/download/${KIND_VERSION}/checksums.txt
curl -sSL https://dl.k8s.io/release/${KUBECTL_VERSION}/bin/linux/${a}/kubectl.sha256
curl -sSL https://github.com/tilt-dev/tilt/releases/download/v${TILT_VERSION}/checksums.txt
curl -sSL https://github.com/tilt-dev/ctlptl/releases/download/v${CTLPTL_VERSION}/checksums.txt
curl -sSL https://github.com/jqlang/jq/releases/download/jq-${JQ_VERSION}/sha256sum.txt
Edit the pinned block at the top of this file with what those print.
EOF
exit 1
}
DL=""
pick_downloader() {
if command -v curl >/dev/null 2>&1; then DL=curl
elif command -v wget >/dev/null 2>&1; then DL=wget
else
echo "neither curl nor wget is installed, so nothing can be downloaded." >&2
echo "Install one first: $(pkg_install_cmd curl)" >&2
exit 1
fi
}
download() {
local url="$1" out="$2"
case "$DL" in
curl) curl -fsSL --retry 3 -o "$out" "$url" ;;
wget) wget -q --tries=3 -O "$out" "$url" ;;
esac
}
SHA=""
pick_sha() {
if command -v sha256sum >/dev/null 2>&1; then SHA=sha256sum
elif command -v shasum >/dev/null 2>&1; then SHA="shasum -a 256"
else
echo "no sha256sum and no shasum — downloads could not be verified." >&2
echo "Refusing to install unverified binaries." >&2
exit 1
fi
}
# ── package manager, for the instructions only ─────────────────────────────
# This never runs a package manager. It names one so the reported action is
# something you can paste, on the distro you are actually on — an apt line on
# Amazon Linux 2 is a wrong answer dressed up as help.
pkg_install_cmd() {
local pkg="$1"
if command -v apt-get >/dev/null 2>&1; then echo "sudo apt-get update && sudo apt-get install -y $pkg"
elif command -v dnf >/dev/null 2>&1; then echo "sudo dnf install -y $pkg"
elif command -v yum >/dev/null 2>&1; then echo "sudo yum install -y $pkg"
elif command -v zypper >/dev/null 2>&1; then echo "sudo zypper install -y $pkg"
elif command -v apk >/dev/null 2>&1; then echo "sudo apk add $pkg"
else echo "install '$pkg' with this system's package manager"
fi
}
docker_pkg() {
# Debian and Ubuntu call it docker.io; the RPM distros call it docker.
if command -v apt-get >/dev/null 2>&1; then echo docker.io; else echo docker; fi
}
# ── detect ─────────────────────────────────────────────────────────────────
# Windows outside WSL — Git Bash, MSYS, Cygwin — looks close enough to work and
# then fails in a pile of confusing ways: no /proc, no docker socket, none of
# the tooling. Detectable, so name it instead.
require_linux() {
case "$(uname -s)" in
MINGW*|MSYS*|CYGWIN*)
cat >&2 <<'EOF'
This has to run inside WSL, not Git Bash / MSYS / Cygwin.
If WSL is not installed yet, from an elevated PowerShell or Command Prompt:
wsl --install
That enables Windows features and needs a reboot, so it is not something this
script will do for you. Afterwards, open the Linux shell it installs and run
this from there.
See "Starting from plain Windows" in README.md.
EOF
exit 1 ;;
esac
}
is_wsl() { grep -qi microsoft /proc/version 2>/dev/null; }
detect() {
echo "host"
echo " kernel $(uname -r)"
echo " arch $(arch) ($(uname -m))"
local osr; osr=$(host_file /etc/os-release)
[ -r "$osr" ] && echo " distro $(sed -n 's/^PRETTY_NAME="\(.*\)"/\1/p' "$osr")"
# In MB. Whole gigabytes lose nearly half a GB on exactly the machines where
# it matters: 1874 MB available used to print as "1 GB". Facts only — whether
# that is enough depends on the profile, which check.sh knows and this does not.
local total_mb avail_mb swap_total_mb swap_used_mb om
total_mb=$(mb_of MemTotal)
avail_mb=$(mb_of MemAvailable)
swap_total_mb=$(mb_of SwapTotal)
swap_used_mb=$(( swap_total_mb - $(mb_of SwapFree) ))
printf " memory %d MB total, %d MB available\n" "$total_mb" "$avail_mb"
if [ "$swap_total_mb" -gt 0 ]; then
printf " swap %d MB used of %d MB\n" "$swap_used_mb" "$swap_total_mb"
fi
# How the kernel answers an allocation it cannot really satisfy. With 1 it
# always says yes and settles up later with the OOM killer, so a cluster that
# starts cleanly can still lose processes afterwards.
om=$(cat "${OVERCOMMIT_FILE:-/proc/sys/vm/overcommit_memory}" 2>/dev/null || echo '?')
case "$om" in
0) echo " overcommit 0 heuristic — allocations are granted on a guess" ;;
1) echo " overcommit 1 always — every allocation succeeds; the OOM killer is the only limit" ;;
2) echo " overcommit 2 strict — an allocation fails honestly instead of killing later" ;;
esac
echo " install to $OUT_BIN"
detect_libc
detect_prereqs
detect_wsl
detect_filesystem
detect_docker
detect_inotify
detect_toolchain
}
detect_wsl() {
if ! is_wsl; then
echo " platform native linux"
return
fi
echo " platform WSL"
# systemd is off by default in WSL, and the ingress/DNS paths that use a
# host service need it. Enabling it requires a Windows-side restart, which
# cannot be issued from inside the distro.
local wc; wc=$(host_file /etc/wsl.conf)
if [ -r "$wc" ] && grep -qE '^\s*systemd\s*=\s*true' "$wc"; then
echo " systemd enabled in wsl.conf"
else
echo " ! systemd not enabled in /etc/wsl.conf"
MANUAL+=("Enable systemd — add to /etc/wsl.conf:
[boot]
systemd=true
then from a WINDOWS terminal (not this shell): wsl --shutdown")
fi
# WSL regenerates /etc/resolv.conf on every boot, which silently reverts any
# local DNS setup.
if [ -r "$wc" ] && grep -qE '^\s*generateResolvConf\s*=\s*false' "$wc"; then
echo " resolv.conf pinned (generateResolvConf=false)"
else
echo " - resolv.conf is WSL-generated; DNS_MODE=dnsmasq would be reverted on reboot"
fi
local wcfg
wcfg=$(ls "$HOST_ROOT"/mnt/c/Users/*/.wslconfig 2>/dev/null | head -1 || true)
if [ -n "$wcfg" ] && grep -qE '^\s*memory\s*=' "$wcfg"; then
echo " wslconfig memory set: $(grep -E '^\s*memory\s*=' "$wcfg" | tr -d ' ')"
else
MANUAL+=("Cap/raise the WSL VM memory — see what is set versus what booted:
make mem status
It prints the edit to make and the command to apply it.")
fi
}
# Not a path check: /mnt is an ordinary mount point and an ext4 disk mounted
# there is perfectly fine. What matters is the filesystem. The Windows drives
# arrive as 9p (WSL2) or drvfs (WSL1); network and fuse mounts behave the same
# way. None of them deliver inotify events, so anything watching files goes
# quiet without saying why.
watch_hostile_fs() {
local dir="$1" fstype
fstype=$(findmnt -no FSTYPE --target "$dir" 2>/dev/null || true)
[ -n "$fstype" ] || fstype=$(stat -f -c %T "$dir" 2>/dev/null || true)
case "$fstype" in
9p|v9fs|drvfs|cifs|smb3|nfs|nfs4|fuse.sshfs|fuseblk) echo "$fstype" ;;
*) echo "" ;;
esac
}
detect_filesystem() {
local root fstype
root=$(cd .. && pwd -P)
fstype=$(watch_hostile_fs "$root")
if [ -n "$fstype" ]; then
echo " ! this directory is on $fstype — file watching will not work"
MANUAL+=("Move this onto the local disk. Nothing watching files sees changes
on a $fstype mount, and everything else is slower:
cp -r \"$root\" ~/ && cd ~/$(basename "$root")")
else
echo " filesystem $root ($(findmnt -no FSTYPE --target "$root" 2>/dev/null || echo local))"
fi
}
# tilt is the one binary here that needs a recent glibc. MEASURED, not guessed:
# tilt 0.37.6 on Amazon Linux 2 (glibc 2.26) fails with
#
# /lib64/libc.so.6: version `GLIBC_2.34' not found (required by .../tilt)
#
# which names a symbol rather than the problem. Amazon Linux 2 is a stock
# WorkSpaces bundle, so this is the likely case, not an exotic one. Report the
# version now; `verify` catches the actual failure after installing.
detect_libc() {
local v=""
if command -v ldd >/dev/null 2>&1; then
v=$(ldd --version 2>/dev/null | head -1 | grep -oE '[0-9]+\.[0-9]+$' || true)
fi
if [ -z "$v" ]; then
echo " libc unknown (no ldd) — 'verify' is the real test"
return 0
fi
echo " libc glibc $v"
if [ "$(printf '%s\n2.34\n' "$v" | sort -V | head -1)" != "2.34" ]; then
echo " ! older than glibc 2.34, which tilt needs. kubectl, kind, jq and"
echo " ctlptl are static or libc-only and work here; tilt will not start."
echo " Install the core tier, or run tilt from a container."
fi
return 0
}
# What this script needs to do its own job. Reported here so `detect` answers
# "will install work?" instead of leaving you to find out one download in.
# Amazon Linux 2 ships without tar, which is exactly the surprise this catches.
detect_prereqs() {
local missing=""
if command -v curl >/dev/null 2>&1; then echo " download curl"
elif command -v wget >/dev/null 2>&1; then echo " download wget"
else echo " ! no curl and no wget — nothing can be downloaded"; missing+=" curl"
fi
if command -v sha256sum >/dev/null 2>&1 || command -v shasum >/dev/null 2>&1; then
echo " checksums ok"
else
echo " ! no sha256sum or shasum — downloads could not be verified"
missing+=" coreutils"
fi
if command -v tar >/dev/null 2>&1 && command -v gzip >/dev/null 2>&1; then
echo " archives tar + gzip"
else
echo " ! no tar/gzip — tilt and ctlptl ship as tarballs, so the dev tier"
echo " cannot be unpacked. The core tier is two bare binaries and is fine."
missing+=" tar gzip"
fi
if [ -n "$missing" ]; then
MANUAL+=("Install what this script needs to run at all:
$(pkg_install_cmd "${missing# }")")
fi
return 0
}
detect_docker() {
# Reachability of the daemon is the real question, and the CLI is only how
# we ask it. Note that when this runs inside the installer container, Docker
# necessarily exists on the host — otherwise nothing would be executing —
# so a missing CLI in here is an installer packaging bug, not a host problem.
if ! command -v docker >/dev/null 2>&1; then
if [ -S /var/run/docker.sock ]; then
echo " docker socket present (no cli in this context)"
else
echo " ! docker not found and no socket at /var/run/docker.sock"
MANUAL+=("Install Docker — the one true prerequisite, and the only thing here
that needs root:
$(pkg_install_cmd "$(docker_pkg)")
sudo systemctl enable --now docker
sudo usermod -aG docker \"\$USER\"
then log out and back in, so the new group applies to your shell.")
fi
return
fi
if docker info >/dev/null 2>&1; then
echo " docker $(docker version --format '{{.Server.Version}}' 2>/dev/null)"
local n
n=$(docker ps --filter "label=io.x-k8s.kind.cluster" --format '{{.Names}}' 2>/dev/null | wc -l)
# Must be an `if`, not `[ ] && echo`: as the last statement in this
# function the latter returns 1 when the count is zero, and `set -e`
# then kills the caller. That is the fresh-machine case — no clusters
# yet — so the bug only ever shows up where it does most harm.
if [ "$n" -gt 0 ]; then
echo " - $n kind node container(s) already running; see 'make cluster list'"
fi
else
echo " ! docker cli present but the daemon is unreachable"
MANUAL+=("Start Docker, or add yourself to the docker group:
sudo usermod -aG docker \"\$USER\" # then log out and back in")
fi
}
# kind and Tilt both watch large trees. WSL ships defaults (8192/128) far too low,
# and the failure mode is silent: Tilt simply stops noticing file changes.
detect_inotify() {
local w i
w=$(cat /proc/sys/fs/inotify/max_user_watches 2>/dev/null || echo 0)
i=$(cat /proc/sys/fs/inotify/max_user_instances 2>/dev/null || echo 0)
echo " inotify watches=$w instances=$i"
if [ "$w" -lt 524288 ] || [ "$i" -lt 512 ]; then
echo " ! inotify limits are low — Tilt will silently stop noticing file changes"
MANUAL+=("Raise inotify limits (needs root on the host):
echo -e 'fs.inotify.max_user_watches=524288\\nfs.inotify.max_user_instances=512' \\
| sudo tee /etc/sysctl.d/99-rig.conf
sudo sysctl --system")
fi
}
# ── fetch ──────────────────────────────────────────────────────────────────
# Resolve where a given artifact comes from, honouring DEPS_SOURCE.
resolve_url() {
local upstream="$1"
case "$DEPS_SOURCE" in
upstream) echo "$upstream" ;;
artifactory)
if [ -z "$DEPS_ARTIFACTORY_URL" ]; then
echo "DEPS_SOURCE=artifactory but DEPS_ARTIFACTORY_URL is empty" >&2
exit 1
fi
echo "${DEPS_ARTIFACTORY_URL%/}/$(basename "$upstream")"
;;
*) echo "unsupported DEPS_SOURCE '$DEPS_SOURCE' for a download" >&2; exit 1 ;;
esac
}
verify() {
local file="$1" want="$2" name="$3" got
got=$($SHA "$file" | awk '{print $1}')
if [ "$got" != "$want" ]; then
echo "checksum mismatch for $name" >&2
echo " expected $want" >&2
echo " got $got" >&2
exit 1
fi
}
# fetch_bin <name> <url> <sha256> <dest-dir> — a bare binary
fetch_bin() {
local name="$1" url="$2" sha="$3" dest="$4"
local tmp="$dest/.$name.tmp"
echo " fetching $name"
download "$(resolve_url "$url")" "$tmp"
verify "$tmp" "$sha" "$name"
mv "$tmp" "$dest/$name"
chmod +x "$dest/$name"
}
# fetch_tgz <name> <url> <sha256> <dest-dir> <path-inside-archive> <strip>
# Archive layouts differ — tilt's is flat (the binary at the root, strip=0),
# others nest it a directory down — so the caller says which.
fetch_tgz() {
local name="$1" url="$2" sha="$3" dest="$4" inner="$5" strip="$6"
local tmp="$dest/.$name.tgz"
echo " fetching $name"
download "$(resolve_url "$url")" "$tmp"
verify "$tmp" "$sha" "$name"
# --no-same-owner: extracting as root would otherwise restore the uid/gid
# baked into the archive (some ship as uid 1001), leaving a binary the host
# user does not own.
tar -xzf "$tmp" -C "$dest" --strip-components="$strip" --no-same-owner "$inner"
rm -f "$tmp"
chmod +x "$dest/$name"
}
# The installer runs as root so it can reach the docker socket, which means
# everything it writes into a mounted volume lands root-owned and unusable from
# the host. Hand it back to whoever owns the mount point (the host user created
# that directory before mounting it).
fix_ownership() {
local dir="$1"
[ -d "$dir" ] || return 0
local owner="${HOST_UID:-}:${HOST_GID:-}"
if [ "$owner" = ":" ]; then
owner=$(stat -c '%u:%g' "$dir")
fi
[ "$owner" = "0:0" ] && return 0
chown -R "$owner" "$dir" 2>/dev/null || true
}
# Two tiers, because not every machine should get cluster tooling.
#
# core kubectl, jq — talk to a cluster someone else runs. Nothing that
# creates one. Appropriate on a managed or corporate-issued machine
# where development tools are not wanted by default.
# dev core plus kind and tilt — build clusters and hot-reload into them.
#
# The split exists because "install the toolchain" is not one decision: on a
# managed workspace the right answer is kubectl and nothing else.
CORE_TOOLS="kubectl jq"
# No helm: every addon installs with `kubectl apply -f <url>`, so nothing here
# has ever invoked it. Add it back the day something actually needs a chart.
#
# ctlptl is 'dev' rather than 'core' for the same reason kind is: core is "talk
# to a cluster someone else runs", and ctlptl builds them. It earns its place
# because it is what wires a cluster to a local registry — without one, an
# unqualified image name resolves to docker.io/library/<name> and there is
# nothing structural stopping a push there.
#
# docker-compose is 'dev' for the same reason, and is here because the distro
# docker packages ship the daemon and CLI but frequently not the compose
# plugin — so `docker compose up` fails with "unknown command" on an otherwise
# working Docker, and nothing about that message names the missing piece.
DEV_TOOLS="kind tilt ctlptl docker-compose"
# ── what is already on this machine ───────────────────────────────────────
#
# A tool already on PATH at its pinned version is left where it is. Without
# this, install downloads a second copy into OUT_BIN and then reports the first
# one as shadowed — noise, and wrong, when both are the same version. That is
# the normal state of any machine someone set up by hand, whatever directory
# they happened to choose.
pin_of() {
case "$1" in
kubectl) echo "$KUBECTL_VERSION" ;;
jq) echo "$JQ_VERSION" ;;
kind) echo "$KIND_VERSION" ;;
tilt) echo "$TILT_VERSION" ;;
ctlptl) echo "$CTLPTL_VERSION" ;;
docker-compose) echo "$COMPOSE_VERSION" ;;
esac
}
# The version string a binary reports. Each tool spells the question
# differently, and kubectl has to be told --client or it goes looking for a
# server to ask.
reported_version() {
local tool="$1" path="$2"
case "$tool" in
kubectl) "$path" version --client 2>/dev/null ;;
jq) "$path" --version 2>/dev/null ;;
*) "$path" version 2>/dev/null ;;
esac
}
# Does the binary at PATH report PIN? Matched as a whole version token, so
# 0.37.6 never matches 10.37.60, with the leading v optional either side: kind
# says v0.32.0, jq says jq-1.8.2, and tilt says v0.37.6 against a pin of 0.37.6.
#
# Bash's own regex rather than grep, deliberately. grep is not the same program
# on every machine — some builds reject patterns that others accept — and a
# failed grep inside a count reads exactly like a zero.
version_matches() {
local tool="$1" path="$2" pin="$3" out v re
out=$(reported_version "$tool" "$path") || return 1
v="${pin#v}"
v="${v//./\\.}"
re="(^|[^0-9.])v?${v}([^0-9.]|\$)"
[[ $out =~ $re ]]
}
# DEPS_ONLY narrows a fetch to the tools it names. Unset means the whole tier,
# which is what an explicit `deps.sh fetch` always gets: "download these into
# DIR" must not quietly skip something because this machine happens to have it.
# Only install() sets it, to what detect_toolchain found missing or mismatched.
want() { [ -z "${DEPS_ONLY:-}" ] || [[ " $DEPS_ONLY " == *" $1 "* ]]; }
# Every tool in the tier with its state, probed once and reported once. What
# still needs fetching is left in TOOLCHAIN_NEED for install() to act on.
TOOLCHAIN_NEED=""
detect_toolchain() {
local tier="${TIER:-dev}" b pin path found
TOOLCHAIN_NEED=""
echo
echo "toolchain (pinned, tier '$tier')"
for b in $(tier_tools "$tier"); do
pin=$(pin_of "$b")
path=$(command -v "$b" 2>/dev/null || true)
# compose is the one tool that is normally NOT a binary on PATH. It is a
# docker CLI plugin, so a machine where `docker compose` works perfectly
# has no `docker-compose` to find — and probing only PATH would report it
# missing and re-download a copy that is already there. That is the exact
# noise the version-aware skip exists to prevent, so ask docker instead.
if [ "$b" = docker-compose ] && [ -z "$path" ]; then
if found=$(docker compose version --short 2>/dev/null) && [ -n "$found" ]; then
if [ "${found#v}" = "${pin#v}" ]; then
printf " %-8s %-9s %s\n" "$b" "$pin" "docker cli plugin"
else
printf " ! %-8s wants %s, the docker cli plugin reports '%s'\n" \
"$b" "$pin" "$found"
TOOLCHAIN_NEED+="$b "
fi
continue
fi
fi
if [ -z "$path" ]; then
printf " - %-8s %-9s not found\n" "$b" "$pin"
TOOLCHAIN_NEED+="$b "
elif version_matches "$b" "$path" "$pin"; then
printf " %-8s %-9s %s\n" "$b" "$pin" "$path"
else
found=$(reported_version "$b" "$path" 2>/dev/null | head -1 || true)
printf " ! %-8s wants %s, %s reports '%s'\n" "$b" "$pin" "$path" "$found"
TOOLCHAIN_NEED+="$b "
fi
done
if [ -z "$TOOLCHAIN_NEED" ]; then
echo " every pinned tool is already on PATH — nothing to fetch"
else
echo " 'make deps' fetches only: ${TOOLCHAIN_NEED% }"
fi
}
fetch() {
local dest="$OUT_BIN" tier="${TIER:-dev}"
while [ $# -gt 0 ]; do
case "$1" in
--to) dest="$2"; shift 2 ;;
core|dev) tier="$1"; shift ;;
*) echo "unknown argument: $1" >&2; exit 1 ;;
esac
done
dest="$(abspath "$dest")"
mkdir -p "$dest"
TIER="$tier"
if [ "$DEPS_SOURCE" = "baked" ]; then
echo "installing baked binaries from $BAKED_BIN"
cp -a "$BAKED_BIN"/. "$dest"/
fix_ownership "$dest"
return
fi
if [ -n "${DEPS_ONLY:-}" ]; then
echo "fetching ${DEPS_ONLY% } (source: $DEPS_SOURCE)"
else
echo "fetching '$tier' toolchain (source: $DEPS_SOURCE)"
fi
if want kubectl; then fetch_bin kubectl "$KUBECTL_URL" "$KUBECTL_SHA256" "$dest"; fi
if want jq; then fetch_bin jq "$JQ_URL" "$JQ_SHA256" "$dest"; fi
if [ "$tier" = "dev" ]; then
if want kind; then fetch_bin kind "$KIND_URL" "$KIND_SHA256" "$dest"; fi
if want tilt; then fetch_tgz tilt "$TILT_URL" "$TILT_SHA256" "$dest" tilt 0; fi
if want ctlptl; then fetch_tgz ctlptl "$CTLPTL_URL" "$CTLPTL_SHA256" "$dest" ctlptl 0; fi
if want docker-compose; then
fetch_bin docker-compose "$COMPOSE_URL" "$COMPOSE_SHA256" "$dest"
fi
fi
fix_ownership "$dest"
# kind writes the kubeconfig as root too; hand that back as well when it's
# a mounted host directory rather than container-local state.
fix_ownership "${KUBE_DIR:-/out/kube}"
}
# ── install ────────────────────────────────────────────────────────────────
report_manual() {
echo
if [ ${#MANUAL[@]} -eq 0 ]; then
echo "nothing left to do by hand."
return
fi
echo "host actions this cannot perform (${#MANUAL[@]}):"
echo
local n=1
for m in "${MANUAL[@]}"; do
echo " $n. $m"
echo
n=$((n + 1))
done
}
# Installing into a directory that sits early in PATH silently replaces whatever
# the machine was already using — which on a shared or client machine can break
# unrelated work (kubectl more than one minor away from a cluster is the common
# one). Say so; never decide it for them.
# Downloading a verified binary proves it is the right file, not that this
# machine can run it. On an old distro tilt fails here, with a linker error
# about a missing symbol, and finding that out now beats finding out during a
# first cluster build.
verify_tools() {
local tier="${1:-dev}" b bin out rc broke=0
echo "checking that each one actually runs"
for b in $(tier_tools "$tier"); do
bin="$OUT_BIN/$b"
if [ ! -x "$bin" ]; then
printf ' %-14s not installed\n' "$b"
continue
fi
# Not piped into `head`. With `pipefail` set, a tool that prints more
# than one line gets SIGPIPE when head closes the pipe, and the
# pipeline reports 141 — so a working kubectl was announced as "does
# not run here", with its own correct version string as the evidence.
# Take the first line afterwards, from the string.
rc=0
case "$b" in
kubectl) out=$("$bin" version --client 2>&1) || rc=$? ;;
jq) out=$("$bin" --version 2>&1) || rc=$? ;;
*) out=$("$bin" version 2>&1) || rc=$? ;;
esac
out=${out%%$'\n'*}
if [ "$rc" -eq 0 ]; then
printf ' %-14s %s\n' "$b" "$out"
else
printf ' ! %-12s does not run here: %s\n' "$b" "$out"
broke=1
fi
done
if [ "$broke" -eq 1 ]; then
echo
echo " A binary that downloads and verifies but will not start is almost"
echo " always this distro's libc being older than the release needs."
echo " 'detect' prints the glibc version. The core tier (kubectl + jq)"
echo " has no such dependency and will work regardless."
fi
return 0
}
list() {
echo "pinned, linux/amd64 only:"
printf ' %-14s %s\n' kubectl "$KUBECTL_VERSION"
printf ' %-14s %s\n' jq "$JQ_VERSION"
printf ' %-14s %s\n' kind "$KIND_VERSION"
printf ' %-14s %s\n' tilt "$TILT_VERSION"
printf ' %-14s %s\n' ctlptl "$CTLPTL_VERSION"
printf ' %-14s %s\n' docker-compose "$COMPOSE_VERSION"
echo
echo " core = $CORE_TOOLS"
echo " dev = $CORE_TOOLS $DEV_TOOLS"
echo
echo "Checksums are pinned in the block at the top of this file. To bump one,"
echo "take the new checksum from the publisher's own release list — the header"
echo "comment has the exact commands."
return 0
}
tier_tools() { [ "$1" = "core" ] && echo "$CORE_TOOLS" || echo "$CORE_TOOLS $DEV_TOOLS"; }
warn_shadowing() {
local b existing shadowed="" tier="${1:-dev}"
for b in $(tier_tools "$tier"); do
[ -x "$OUT_BIN/$b" ] || continue
# Where would this resolve if OUT_BIN weren't in the way?
existing=$(PATH=$(echo "$PATH" | tr ':' '\n' | grep -vx "$OUT_BIN" | paste -sd:) \
command -v "$b" 2>/dev/null || true)
[ -n "$existing" ] || continue
[ "$existing" = "$OUT_BIN/$b" ] && continue
# The same version in both places is not a conflict: nothing changes for
# any other project whichever copy PATH happens to find first.
if version_matches "$b" "$existing" "$(pin_of "$b")"; then continue; fi
shadowed+=" $b $existing"$'\n'
done
[ -n "$shadowed" ] || return 0
case ":${PATH}:" in
*":$OUT_BIN:"*) ;;
*) return 0 ;; # not on PATH yet, so nothing is being shadowed
esac
echo
echo " ! these were already installed elsewhere and are now shadowed by $OUT_BIN:"
printf '%s' "$shadowed"
echo " Other projects on this machine will pick up the new versions."
MANUAL+=("Decide which toolchain wins. To keep the previous one, remove what
was just installed:
rm -f $(for b in $(tier_tools "$tier"); do printf '%s ' "$OUT_BIN/$b"; done)
Or install somewhere private instead:
OUT_BIN=\$PWD/def/bin make deps # then put that dir first in PATH")
}
# A copy in OUT_BIN only gives you `docker-compose`. That hyphenated form is the
# retired v1 spelling; every compose file written in the last few years assumes
# `docker compose`, which resolves plugins BY NAME out of a plugin directory.
# So the binary is fetched like any other and then linked, in your own home —
# no root, and nothing outside it.
install_compose_plugin() {
local src="$OUT_BIN/docker-compose" dir="$HOME/.docker/cli-plugins"
[ -x "$src" ] || return 0
mkdir -p "$dir"
# Something else already owns that name — docker-desktop and some distro
# packages install a real file there. Overwriting it would take the plugin
# away from whatever put it there, so say so and let the user decide.
if [ -e "$dir/docker-compose" ] && [ ! -L "$dir/docker-compose" ]; then
MANUAL+=("Something already installs the compose plugin at
$dir/docker-compose
To use rig's pinned build instead:
ln -sf $src $dir/docker-compose")
return 0
fi
ln -sfn "$src" "$dir/docker-compose"
echo " compose plugin -> $dir/docker-compose"
return 0
}
install() {
local tier="${1:-dev}" b
TIER="$tier"
detect
# detect_toolchain has already probed PATH. Fetch only what it found missing
# or at the wrong version; a tool already present at its pin stays where it is.
if [ -n "$TOOLCHAIN_NEED" ]; then
echo
DEPS_ONLY="$TOOLCHAIN_NEED" fetch "$tier"
echo
echo "installed to $OUT_BIN ($tier):"
for b in $TOOLCHAIN_NEED; do
if [ -x "$OUT_BIN/$b" ]; then echo " $b"; fi
done
if [ "$tier" = "core" ]; then
echo " (no kind/tilt — 'make deps dev' adds them)"
fi
# Only when compose was one of the things fetched: linking a binary
# that is already satisfied elsewhere on PATH would point the plugin at
# a copy rig did not install.
case " $TOOLCHAIN_NEED " in
*" docker-compose "*) install_compose_plugin ;;
esac
# Only worth saying when something actually landed in OUT_BIN. When every
# tool was satisfied elsewhere, OUT_BIN may reasonably be off PATH, and
# telling the user to add it would be advice to fix nothing.
case ":${PATH}:" in
*":$OUT_BIN:"*) ;;
*) MANUAL+=("Put the toolchain on your PATH — add to ~/.bashrc:
export PATH=\"${OUT_BIN}:\$PATH\"") ;;
esac
fi
warn_shadowing "$tier"
report_manual
}
# ── main ───────────────────────────────────────────────────────────────────
require_linux
# Read the command, THEN shift — and shift only if there is something there.
# A bare `shift` with no positional parameters returns 1, and under `set -e`
# that ended the script before a single line was printed: running this with no
# arguments at all, the documented default, did nothing and said nothing.
cmd="${1:-install}"
[ $# -gt 0 ] && shift
# Baked mode copies binaries already in the image, so it needs no downloader.
need_downloads() {
require_amd64
if [ "$DEPS_SOURCE" != baked ]; then pick_downloader; fi
pick_sha
}
case "$cmd" in
detect) detect; report_manual ;;
list) list ;;
verify) verify_tools "${1:-dev}" ;;
fetch) need_downloads; fetch "$@" ;;
install) need_downloads; install "${1:-dev}" ;;
*) echo "usage: $0 [detect|list|verify|fetch|install]" >&2
echo " install [core|dev] (default dev)" >&2
echo " fetch [core|dev] [--to DIR]" >&2
echo " OUT_BIN=<dir> overrides the install directory" >&2
exit 1 ;;
esac

860
rig/standalone/client/rigmini.sh
View File

@@ -1,860 +0,0 @@
#!/usr/bin/env bash
# GENERATED by make standalone — do not edit
#
# rigmini.sh for profile 'client', flattened from:
# ctrl/mem.sh
# ctrl/lib/config.sh
# Edit those and run `make standalone`. Changes made here are lost, and
# `make selftest` fails while this file differs from what rig generates.
# ── from the libraries ──
declare -- CONFIG_OVERRIDABLE=$'PROFILE CLUSTER K8S_VERSION KIND_CONFIG ADDONS\n REGISTRY_MODE INGRESS_MODE DNS_MODE TILT_PORT\n SOURCE ARCH DEPS_SOURCE HTTP_PORT HTTPS_PORT\n REGISTRY_PORT MANIFESTS_DIR'
_config_restore ()
{
local line;
while IFS= read -r line; do
if [ -n "$line" ]; then
eval "export $line";
fi;
done <<< "$1";
return 0
}
default_cluster_name ()
{
local n;
n=$(basename "$(cd .. && pwd)");
n=$(echo "$n" | tr '[:upper:]' '[:lower:]' | tr -c 'a-z0-9-' '-');
n=$(echo "$n" | sed 's/^-*//; s/-*$//');
echo "${n:-rig}"
}
derive_port_base ()
{
local h;
h=$(printf '%s' "$1" | cksum | awk '{print $1}');
echo $((20000 + (h % 200) * 10))
}
render_kind_config ()
{
local host_workdir="${HOST_WORKDIR:-$(cd .. && pwd)}";
sed -e "s|\${CLUSTER}|${CLUSTER}|g" -e "s|\${NODE_IMAGE}|${NODE_IMAGE}|g" -e "s|\${HTTP_PORT}|${HTTP_PORT}|g" -e "s|\${HOST_WORKDIR}|${host_workdir}|g" "$KIND_CONFIG_PATH"
}
# ── configuration, frozen for profile 'client' ──
load_config() {
local k saved=""
for k in $CONFIG_OVERRIDABLE; do
if [ -n "${!k+x}" ]; then saved+="$k=$(printf '%q' "${!k}")"$'\n'; fi
done
declare -gx ADDONS="metallb cert-manager metrics-server"
declare -gx AIRFLOW_IMAGE="apache/airflow:2.10.4"
declare -g AUDIT="on"
declare -gx CERT_MANAGER_VERSION="v1.21.1"
declare -g CLUSTER="rig"
declare -gx COMPOSE_SHA256="db1889184726840f75c4f9c001048430d4f25b3be3cb084d3ddd762bc0aed576"
declare -gx COMPOSE_URL="https://github.com/docker/compose/releases/download/v5.5.1/docker-compose-linux-x86_64"
declare -gx COMPOSE_VERSION="5.5.1"
declare -gx CTLPTL_SHA256="c63a1ec28e60bc3faf6becb76f53355c5cf5e0143dafdd27ad85db5584fa6b1e"
declare -gx CTLPTL_URL="https://github.com/tilt-dev/ctlptl/releases/download/v0.9.4/ctlptl.0.9.4.linux.x86_64.tar.gz"
declare -gx CTLPTL_VERSION="0.9.4"
declare -gx DNS_MODE="hosts"
declare -g HTTPS_PORT="20311"
declare -g HTTP_PORT="20310"
declare -gx INGRESS_MODE="hostport"
declare -gx JQ_SHA256="b1c22172dd303f3be49e935aa56aa48a8b7a46e0bc838b4997d3bb451495870f"
declare -gx JQ_URL="https://github.com/jqlang/jq/releases/download/jq-1.8.2/jq-linux-amd64"
declare -gx JQ_VERSION="1.8.2"
declare -gx K8S_VERSION="v1_36"
declare -gx KIND_CONFIG="kind-config.client.yaml.tpl"
declare -g KIND_CONFIG_PATH="./k8s/kind-config.client.yaml.tpl"
declare -g KIND_CONFIG_SHOWN="ctrl/k8s/kind-config.client.yaml.tpl"
declare -gx KIND_SHA256="50030de23cf40a18505f20426f6a8506bedf13c6e509244bd1fa9463721b0f54"
declare -gx KIND_URL="https://github.com/kubernetes-sigs/kind/releases/download/v0.32.0/kind-linux-amd64"
declare -gx KIND_VERSION="v0.32.0"
declare -g KUBECONTEXT="kind-rig"
declare -gx KUBECTL_SHA256="ebbd080e7c2e275093b55915722043257eb24004363e20acb3c4d71919f88336"
declare -gx KUBECTL_URL="https://dl.k8s.io/release/v1.36.3/bin/linux/amd64/kubectl"
declare -gx KUBECTL_VERSION="v1.36.3"
declare -g MANIFESTS_DIR="ctrl/k8s/overlays/dev"
declare -gx METALLB_VERSION="v0.16.0"
declare -gx METRICS_SERVER_VERSION="v0.9.0"
declare -g NODES="3"
declare -g NODE_IMAGE="kindest/node:v1.36.1@sha256:3489c7674813ba5d8b1a9977baea8a6e553784dab7b84759d1014dbd78f7ebd5"
declare -gx NODE_IMAGE_v1_33="kindest/node:v1.33.12@sha256:3f5c8443c620245e4d355cfe09e96a91ead32ceaa569d3f1ca9edf0cb2fe2ff4"
declare -gx NODE_IMAGE_v1_34="kindest/node:v1.34.8@sha256:02722c2dedddcfc00febf5d27fbeb9b7b2c14294c82109ff4a85d89ac9ba3256"
declare -gx NODE_IMAGE_v1_35="kindest/node:v1.35.5@sha256:ce977ae6d65918d0b58a5f8b5e940429c2ce42fa3a5619ec2bbc60b949c0ac95"
declare -gx NODE_IMAGE_v1_36="kindest/node:v1.36.1@sha256:3489c7674813ba5d8b1a9977baea8a6e553784dab7b84759d1014dbd78f7ebd5"
declare -g NODE_MB="800"
declare -gx POSTGRES_IMAGE="postgres:16-alpine"
declare -gx PROFILE="client"
declare -gx PROFILE_NAME="client"
declare -gx REDIS_IMAGE="redis:7-alpine"
declare -gx REGISTRY_IMAGE="registry:2"
declare -gx REGISTRY_MODE="mirror"
declare -g REGISTRY_PORT="20313"
declare -gx STUB_IMAGE="python:3.12-slim"
declare -g TILT_PORT="20312"
declare -gx TILT_SHA256="e9672b8a18d43501f35dcfe98465969a7db0e436b36cf0c50c7e6f8d40de5fe6"
declare -gx TILT_URL="https://github.com/tilt-dev/tilt/releases/download/v0.37.6/tilt.0.37.6.linux.x86_64.tar.gz"
declare -gx TILT_VERSION="0.37.6"
_config_restore "$saved"
}
# ── end of frozen configuration ──
# ── ctrl/mem.sh ──
# How much memory this machine will actually give you before something dies —
# rig's memory tool, and (generated from this file) the standalone rigmini.sh.
#
# There are two numbers and they are rarely the same. `status` reports what the
# machine ADVERTISES and what is quietly capping it. `push` finds what it will
# SURVIVE, by allocating until it stops. `all` does both and weighs the result
# against what this profile's cluster needs.
#
# The gap between them is the whole reason this exists. Under WSL the cap lives
# in .wslconfig; in a container or a managed workspace it is a cgroup limit, and
# there /proc/meminfo reports the HOST's memory while the kernel kills you at a
# fraction of it. A script that only read MemTotal would confidently report 32 GB
# on a box that OOMs at 2.
#
# Runs on native Linux and under WSL. On WSL the memory you see is a VM
# allocation that can be raised, and the commonest failure is raising it without
# restarting — so status compares what .wslconfig says with what actually booted.
#
# Reports and instructs. It never raises a limit, frees anything or installs a
# package. The one write it can make is `backup`, which copies .wslconfig beside
# itself, so that `restore` has something to put back after a hand edit.
#
# Usage:
# mem.sh status what it has, what caps it
# mem.sh push [--to GB] [--to-oom] climb until it stops
# mem.sh all [--budget GB] both, then the verdict
# mem.sh backup | restore .wslconfig, WSL only
set -euo pipefail
cd "$(dirname "$0")"
# (sourced library inlined above)
# ── defaults ───────────────────────────────────────────────────────────────
STEP_MB=0 # per allocation; 0 means scale it to the ceiling. See push().
STEP_EXPLICIT=no # whether --step was given, which turns the scaling off.
TO_MB="" # --to: stop here regardless. Empty means no hard cap.
TO_OOM=no # --to-oom: opt in to running until the kernel intervenes.
BUDGET_GB="" # --budget; empty means what this profile's cluster needs, from rig.
BUDGET_EXPLICIT=no # whether --budget was given, which retires the guess below.
# ── platform ───────────────────────────────────────────────────────────────
# Windows outside WSL — Git Bash, MSYS, Cygwin — looks close enough to work and
# then fails in a pile of confusing ways: no /proc, no docker socket, none of
# the tooling. Detectable, so name it instead.
require_linux() {
case "$(uname -s)" in
MINGW*|MSYS*|CYGWIN*)
cat >&2 <<'EOF'
This has to run inside WSL, not Git Bash / MSYS / Cygwin.
If WSL is not installed yet, from an elevated PowerShell or Command Prompt:
wsl --install
That enables Windows features and needs a reboot, so it is not something this
script will do for you. Afterwards, open the Linux shell it installs and run
this from there.
EOF
exit 1 ;;
esac
# Everything below reads /proc. Without it there is nothing to measure, and
# failing here beats printing a page of empty fields.
if [ ! -r /proc/meminfo ]; then
echo "no readable /proc/meminfo — this needs a Linux kernel." >&2
echo "On macOS or a BSD none of the numbers below exist." >&2
exit 1
fi
}
is_wsl() { grep -qi microsoft /proc/version 2>/dev/null; }
is_container() {
[ -f /.dockerenv ] && return 0
grep -qE '(docker|containerd|kubepods|lxc|podman)' /proc/1/cgroup 2>/dev/null
}
platform() {
if is_wsl; then echo WSL
elif is_container; then echo container
else echo "native linux"
fi
}
# ── reading memory ─────────────────────────────────────────────────────────
mb() { echo $(( $(awk "/^$1:/{print \$2}" /proc/meminfo) / 1024 )); }
# MemAvailable arrived in kernel 3.14. Older kernels — and they turn up on
# corporate images — need the estimate it replaced, which is worse but not wrong.
avail_meminfo_mb() {
if grep -q '^MemAvailable:' /proc/meminfo; then
mb MemAvailable
else
awk '/^(MemFree|Buffers|Cached):/{t+=$2} END{print int(t/1024)}' /proc/meminfo
fi
}
# Where a cgroup records this cgroup's own limit and usage. Set once by
# find_cgroup, because every later reading needs both and hunting for the files
# on each call would be the slow part of the poll loop.
CG_MAX_FILE=""
CG_CUR_FILE=""
CG_VERSION=""
find_cgroup() {
local rel
# Inside a container the cgroup namespace makes the top of the tree BE the
# container's own cgroup, so the unqualified path is already the right one.
# On a host it is the root cgroup, which is never limited — hence the second
# attempt via /proc/self/cgroup, which names the slice this shell is in.
if [ -r /sys/fs/cgroup/memory.max ]; then
CG_VERSION=v2
CG_MAX_FILE=/sys/fs/cgroup/memory.max
CG_CUR_FILE=/sys/fs/cgroup/memory.current
elif [ -r /sys/fs/cgroup/memory/memory.limit_in_bytes ]; then
CG_VERSION=v1
CG_MAX_FILE=/sys/fs/cgroup/memory/memory.limit_in_bytes
CG_CUR_FILE=/sys/fs/cgroup/memory/memory.usage_in_bytes
fi
rel=$(awk -F: '$1=="0"{print $3; exit}' /proc/self/cgroup 2>/dev/null || true)
if [ -n "$rel" ] && [ "$rel" != "/" ] && [ -r "/sys/fs/cgroup${rel}/memory.max" ]; then
CG_VERSION=v2
CG_MAX_FILE="/sys/fs/cgroup${rel}/memory.max"
CG_CUR_FILE="/sys/fs/cgroup${rel}/memory.current"
return 0
fi
rel=$(awk -F: '$2 ~ /(^|,)memory(,|$)/{print $3; exit}' /proc/self/cgroup 2>/dev/null || true)
if [ -n "$rel" ] && [ "$rel" != "/" ] \
&& [ -r "/sys/fs/cgroup/memory${rel}/memory.limit_in_bytes" ]; then
CG_VERSION=v1
CG_MAX_FILE="/sys/fs/cgroup/memory${rel}/memory.limit_in_bytes"
CG_CUR_FILE="/sys/fs/cgroup/memory${rel}/memory.usage_in_bytes"
fi
return 0
}
# The cap in MB, or "" when there is none worth reporting. v2 spells unlimited
# "max"; v1 spells it as a number near 2^63, which is why this compares against
# MemTotal rather than testing for a magic value — a "limit" above the machine's
# own memory is not a limit, however it is written.
cgroup_cap_mb() {
local raw cap
[ -n "$CG_MAX_FILE" ] && [ -r "$CG_MAX_FILE" ] || { echo ""; return 0; }
raw=$(cat "$CG_MAX_FILE" 2>/dev/null || echo max)
[ "$raw" = "max" ] && { echo ""; return 0; }
case "$raw" in ''|*[!0-9]*) echo ""; return 0 ;; esac
cap=$((raw / 1024 / 1024))
[ "$cap" -ge "$(mb MemTotal)" ] && { echo ""; return 0; }
echo "$cap"
}
cgroup_used_mb() {
local raw
[ -n "$CG_CUR_FILE" ] && [ -r "$CG_CUR_FILE" ] || { echo ""; return 0; }
raw=$(cat "$CG_CUR_FILE" 2>/dev/null || echo "")
case "$raw" in ''|*[!0-9]*) echo ""; return 0 ;; esac
echo $((raw / 1024 / 1024))
}
# ulimit -v is a per-process address-space cap. It stops YOU long before the box
# does, and because it is inherited from a login shell it is easy to hit without
# knowing it is set.
ulimit_v_mb() {
local v; v=$(ulimit -v 2>/dev/null || echo unlimited)
[ "$v" = "unlimited" ] && { echo ""; return 0; }
case "$v" in ''|*[!0-9]*) echo ""; return 0 ;; esac
echo $((v / 1024))
}
# The number everything else is about: the lowest of the things that can stop
# you. Printed at the end of `status` and used as the sanity bound in `push`.
effective_ceiling_mb() {
local c; c=$(mb MemTotal)
local cap; cap=$(cgroup_cap_mb)
local ul; ul=$(ulimit_v_mb)
[ -n "$cap" ] && [ "$cap" -lt "$c" ] && c="$cap"
[ -n "$ul" ] && [ "$ul" -lt "$c" ] && c="$ul"
echo "$c"
}
# How much room is left RIGHT NOW, from whichever accounting actually governs.
# In a capped container /proc/meminfo describes the host and is worse than
# useless for this — it would report tens of gigabytes free on a box that is one
# allocation from being killed.
headroom_mb() {
local cap used
cap=$(cgroup_cap_mb)
used=$(cgroup_used_mb)
if [ -n "$cap" ] && [ -n "$used" ]; then
echo $(( cap - used ))
else
avail_meminfo_mb
fi
}
# ── status ─────────────────────────────────────────────────────────────────
# /mnt/c/Users can hold several real accounts — a renamed login leaves the old
# directory behind — so picking the first alphabetically is a coin toss. Ask
# Windows, then fall back to whichever profile actually owns a config.
wslconfig_path() {
local profile winpath found
profile=$(cmd.exe /c "echo %USERPROFILE%" 2>/dev/null | tr -d "\r\n" || true)
case "$profile" in
""|*%*) ;;
*) winpath=$(wslpath -u "$profile" 2>/dev/null || true)
if [ -n "$winpath" ] && [ -d "$winpath" ]; then
echo "$winpath/.wslconfig"; return 0
fi ;;
esac
found=$(ls -d /mnt/c/Users/*/.wslconfig 2>/dev/null | head -1 || true)
[ -n "$found" ] && echo "$found"
return 0
}
hogs() {
echo " holding the most:"
ps -eo rss,comm --sort=-rss 2>/dev/null \
| awk 'NR>1 && NR<=6 {printf " %6.0f MB %s\n", $1/1024, $2}'
return 0
}
status() {
local total avail swap_total swap_free cap ul cur
echo "host"
echo " platform $(platform)"
echo " kernel $(uname -r)"
[ -r /etc/os-release ] && \
echo " distro $(sed -n 's/^PRETTY_NAME="\(.*\)"/\1/p' /etc/os-release)"
echo " cpu $(getconf _NPROCESSORS_ONLN 2>/dev/null || echo '?') online, load $(cut -d' ' -f1-3 /proc/loadavg)"
# ── the caps first, because they decide what the totals below are worth ──
echo
echo "caps"
cap=$(cgroup_cap_mb)
if [ -n "$cap" ]; then
cur=$(cgroup_used_mb)
echo " cgroup ${cap} MB (${CG_VERSION}, ${CG_CUR_FILE##*/} says ${cur:-?} MB used)"
echo " ! /proc/meminfo below describes the HOST, not this cgroup."
echo " $(mb MemTotal) MB total is not yours; ${cap} MB is."
elif [ -n "$CG_VERSION" ]; then
echo " cgroup none (${CG_VERSION} present, no memory limit set)"
else
echo " cgroup no memory controller found"
fi
ul=$(ulimit_v_mb)
if [ -n "$ul" ]; then
echo " ! ulimit -v ${ul} MB — a per-process cap, inherited from your shell"
echo " it stops this process long before the machine runs out"
else
echo " ulimit -v unlimited"
fi
# overcommit_memory=0 is the default heuristic: a large allocation is
# granted on a guess, and the reckoning arrives later as an OOM kill rather
# than as a failed malloc. It is why `push` touches every page it asks for.
local om or_
om=$(cat /proc/sys/vm/overcommit_memory 2>/dev/null || echo '?')
or_=$(cat /proc/sys/vm/overcommit_ratio 2>/dev/null || echo '?')
case "$om" in
0) echo " overcommit 0 heuristic — allocations are granted on a guess," ;;
1) echo " overcommit 1 always — every allocation succeeds; the OOM killer is the only limit," ;;
2) echo " overcommit 2 strict (ratio ${or_}%) — allocation fails honestly instead of killing later," ;;
*) echo " overcommit ${om}" ;;
esac
[ "$om" != "?" ] && echo " so RSS is the number to trust, not what a process asked for"
# ── what it says it has ──
total=$(mb MemTotal); avail=$(avail_meminfo_mb)
swap_total=$(mb SwapTotal); swap_free=$(mb SwapFree)
echo
echo "memory"
echo " total ${total} MB"
echo " available ${avail} MB"
echo " swap ${swap_total} MB ($(( swap_total - swap_free )) MB used)"
if [ "$swap_total" -eq 0 ]; then
echo " - no swap: this box has no cushion. It goes from fine to OOM-killed"
echo " with nothing in between, which is the abrupt failure you get in a VM."
fi
# postgres puts its shared buffers in /dev/shm. Docker's default is 64 MB,
# and the resulting failure names neither shm nor the size.
if [ -d /dev/shm ]; then
local shm; shm=$(df -Pm /dev/shm 2>/dev/null | awk 'NR==2{print $2}')
if [ -n "$shm" ]; then
if [ "$shm" -le 64 ]; then
echo " ! /dev/shm ${shm} MB — postgres puts shared memory here and 64 MB"
echo " is docker's default. Raise it with --shm-size when postgres fails."
else
echo " /dev/shm ${shm} MB"
fi
fi
fi
echo
echo "disk"
local d
for d in / /tmp /var/lib/docker; do
[ -d "$d" ] || continue
df -Pm "$d" 2>/dev/null | awk -v p="$d" 'NR==2{printf " %-12s %s MB free of %s MB\n", p, $4, $2}'
done
# kind and Tilt both watch large trees, and the failure mode is silent:
# they simply stop noticing file changes. Cheap to report while we are here.
local w i
w=$(cat /proc/sys/fs/inotify/max_user_watches 2>/dev/null || echo 0)
i=$(cat /proc/sys/fs/inotify/max_user_instances 2>/dev/null || echo 0)
echo
echo "tooling"
echo " inotify watches=$w instances=$i"
if [ "$w" -lt 524288 ] || [ "$i" -lt 512 ]; then
echo " ! low — anything watching files will silently stop seeing changes"
fi
if ! command -v docker >/dev/null 2>&1; then
if [ -S /var/run/docker.sock ]; then
echo " docker socket present, no cli"
else
echo " docker not installed"
fi
elif docker info >/dev/null 2>&1; then
local n
n=$(docker ps -q 2>/dev/null | wc -l)
echo " docker $(docker version --format '{{.Server.Version}}' 2>/dev/null), ${n} container(s) running"
else
echo " ! docker cli present but the daemon is unreachable"
fi
# WSL keeps its cap on the Windows side, in a file this shell can read but
# not usefully apply — the change costs a full VM restart. Report it, and
# report the commonest mistake, which is editing it and not restarting.
if is_wsl; then
local cfg conf conf_mb n
cfg=$(wslconfig_path)
echo
echo "wsl"
if [ -z "$cfg" ]; then
echo " ! cannot tell which Windows profile owns .wslconfig"
else
echo " config $cfg"
conf=$(configured_memory "$cfg")
if [ -n "$conf" ]; then
conf_mb=$(to_mb "$conf")
echo " configured $conf (${conf_mb} MB), booted ${total} MB"
# The VM reports a little less than allocated; 15% covers the
# kernel without calling every healthy machine a mismatch.
if [ -n "$conf_mb" ] && [ "$total" -lt $(( conf_mb * 85 / 100 )) ]; then
echo " ! configured ${conf_mb} MB but booted ${total} MB — not applied yet."
echo " From a WINDOWS terminal: wsl --shutdown then start the distro again."
fi
else
echo " configured no memory= set (WSL defaults to 50% of host RAM, or 8 GB,"
echo " whichever is less). To raise it, add on the Windows side:"
echo " [wsl2]"
echo " memory=8GB"
echo " then from a WINDOWS terminal: wsl --shutdown"
fi
n=$(ls "$cfg".*.bak 2>/dev/null | wc -l)
if [ "$n" -gt 0 ]; then
echo " backups $n (newest: $(ls -t "$cfg".*.bak 2>/dev/null | head -1))"
fi
fi
else
echo
echo " - native linux: no VM allocation to raise. If memory is tight the levers"
echo " are freeing something or adding swap."
fi
echo
echo "effective ceiling $(effective_ceiling_mb) MB"
echo " the lowest of MemTotal, the cgroup cap and ulimit -v. What the box"
echo " claims. 'push' measures what it will actually hand over."
[ "$avail" -lt $(( total / 5 )) ] && { echo; hogs; }
return 0
}
# ── .wslconfig ─────────────────────────────────────────────────────────────
require_wsl() {
if ! is_wsl; then
echo "$1 acts on .wslconfig, which only exists under WSL." >&2
echo "This is native Linux — there is no VM allocation to save or roll back." >&2
echo "Use 'status' to see what the machine actually has." >&2
exit 1
fi
}
# backup and restore act on the file, so unlike status they must not guess.
wslconfig_required() {
local cfg; cfg=$(wslconfig_required)
if [ -z "$cfg" ]; then
echo "cannot tell which Windows profile owns .wslconfig. Candidates:" >&2
ls -d /mnt/c/Users/*/ 2>/dev/null \
| grep -viE "/(All Users|Default|Default User|Public)/$" | sed "s/^/ /" >&2
exit 1
fi
echo "$cfg"
}
configured_memory() {
[ -r "$1" ] || { echo ""; return; }
sed -n 's/^[[:space:]]*memory[[:space:]]*=[[:space:]]*//p' "$1" | tail -1 | tr -d '[:space:]'
}
# "9GB" / "8192MB" / "9G" -> MB, so it can be compared with /proc/meminfo.
to_mb() {
local v="${1^^}" n
n=$(echo "$v" | tr -dc '0-9')
[ -n "$n" ] || { echo ""; return; }
case "$v" in
*GB|*G) echo $(( n * 1024 )) ;;
*MB|*M) echo "$n" ;;
*) echo $(( n / 1024 / 1024 )) ;;
esac
}
backup() {
require_wsl backup
local cfg dest
cfg=$(wslconfig_required)
[ -r "$cfg" ] || { echo "nothing to back up: $cfg does not exist" >&2; exit 1; }
# Timestamped and never overwritten: a backup that can destroy itself on a
# second run is not a backup.
dest="${cfg}.$(date +%Y%m%d-%H%M%S).bak"
cp "$cfg" "$dest"
echo "backed up $dest"
echo
echo "Edit $cfg by hand, then from a WINDOWS terminal: wsl --shutdown"
}
restore() {
require_wsl restore
local cfg newest count
cfg=$(wslconfig_required)
newest=$(ls -t "$cfg".*.bak 2>/dev/null | head -1 || true)
[ -n "$newest" ] || { echo "no backups found beside $cfg" >&2; exit 1; }
echo "restoring $newest"
echo " -> $cfg"
echo
# Newest is the right default — undo the last edit — but if you backed up
# *after* editing, the state you want is older. Show the rest so a no-op
# restore is obviously a no-op rather than a mystery.
count=$(ls "$cfg".*.bak 2>/dev/null | wc -l)
if [ "$count" -gt 1 ]; then
echo "$count backups exist, newest first:"
ls -t "$cfg".*.bak | sed 's/^/ /'
echo " (restoring the newest; copy another by hand to pick an older one)"
echo
fi
if [ -r "$cfg" ]; then
echo "what changes:"
if diff "$cfg" "$newest" > /tmp/mem.diff 2>&1 && [ ! -s /tmp/mem.diff ]; then
echo " nothing — that backup is identical to the current config"
else
sed 's/^/ /' /tmp/mem.diff
fi
rm -f /tmp/mem.diff
echo
fi
printf "proceed? [y/N] "
read -r reply
case "$reply" in
y|Y|yes|Yes) ;;
*) echo "left alone"; return 0 ;;
esac
cp "$newest" "$cfg"
echo "restored. From a WINDOWS terminal: wsl --shutdown"
}
# ── push ───────────────────────────────────────────────────────────────────
STATE=""
CHILD=""
cleanup() {
if [ -n "$CHILD" ] && kill -0 "$CHILD" 2>/dev/null; then
kill -KILL "$CHILD" 2>/dev/null || true
wait "$CHILD" 2>/dev/null || true
fi
[ -n "$STATE" ] && rm -f "$STATE"
return 0
}
# The child allocates and stops itself; the parent only watches. That split is
# the point: under --to-oom the allocating process is expected to be killed, and
# something has to survive to say how far it got.
allocator() {
# Raise our own OOM score to the maximum so the kernel picks THIS process
# first. Raising needs no privilege (only lowering does). Without it, the
# kernel is free to choose your shell, your ssh session or dockerd — on a
# box you are still using, that is not an acceptable coin toss.
echo 1000 > "/proc/$BASHPID/oom_score_adj" 2>/dev/null || true
local arr=() held=0 i=0 rss swapped avail first_swap=0
local bytes=$((STEP_MB * 1024 * 1024))
local swap_used_start
swap_used_start=$(( $(mb SwapTotal) - $(mb SwapFree) ))
while :; do
# Written STRAIGHT INTO the array element. The obvious spelling —
# build one chunk and `arr+=("$chunk")` — costs three copies per step,
# not one: the template stays resident, expanding "$chunk" makes a
# temporary word, and the append makes the element. A 128 MB step then
# needs 384 MB transiently, and on a small box it is killed on the
# first append while reporting a third of the true ceiling.
#
# printf -v into a subscript also means every page is written, so it is
# resident rather than merely promised — the only kind of allocation
# that measures anything under heuristic overcommit.
printf -v "arr[$i]" '%*s' "$bytes" ''
i=$((i + 1)); held=$((held + STEP_MB))
rss=$(awk '/^VmRSS:/{print int($2/1024)}' "/proc/$BASHPID/status" 2>/dev/null || echo 0)
avail=$(headroom_mb)
swapped=$(( $(mb SwapTotal) - $(mb SwapFree) - swap_used_start ))
[ "$swapped" -lt 0 ] && swapped=0
printf '%8s MB held rss %7s MB headroom %7s MB swap +%s MB\n' \
"$held" "$rss" "$avail" "$swapped"
printf '%s %s %s %s\n' "$held" "$rss" "$avail" "$swapped" >> "$STATE"
# Worth calling out separately from the ceiling: this is where the box
# stops being fast and starts being unusable, which for a scheduler is
# a different and earlier problem than being killed.
if [ "$swapped" -gt 0 ] && [ "$first_swap" -eq 0 ]; then
first_swap=$held
echo " - first swap page at ${held} MB — past here it works but crawls"
echo "swapat $held" >> "$STATE"
fi
if [ -n "$TO_MB" ] && [ "$held" -ge "$TO_MB" ]; then
echo "stop reached-the-cap" >> "$STATE"; return 0
fi
if [ "$TO_OOM" = no ] && [ "$avail" -lt "$FLOOR_MB" ]; then
echo "stop floor" >> "$STATE"; return 0
fi
done
}
push() {
local total ceiling rc=0 last held rss swapat stop
total=$(mb MemTotal)
ceiling=$(effective_ceiling_mb)
# A step is worth about a sixty-fourth of the ceiling: enough resolution to
# find the edge, few enough lines to read, and small enough that the
# transient cost of one allocation never dominates a small box. A fixed
# size cannot do all three — 128 MB is fine on 16 GB and absurd on 512 MB.
if [ "$STEP_EXPLICIT" = no ]; then
STEP_MB=$(( ceiling / 64 ))
[ "$STEP_MB" -lt 4 ] && STEP_MB=4
[ "$STEP_MB" -gt 256 ] && STEP_MB=256
fi
# Stop with a cushion rather than riding it to the kill. How big a cushion
# depends on what it is protecting. Under a cgroup cap, running out kills
# only this container's own processes, so it need cover no more than the
# shell that prints the result — and a 512 MB cushion on a 1 GB box would
# halve the answer. On a host there is everything else to protect, and the
# OOM killer does not promise to pick the process that caused the problem.
if [ -n "$(cgroup_cap_mb)" ]; then FLOOR_MB=64; else FLOOR_MB=512; fi
[ $(( ceiling / 20 )) -gt "$FLOOR_MB" ] && FLOOR_MB=$(( ceiling / 20 ))
STATE=$(mktemp "${TMPDIR:-/tmp}/rigmini.XXXXXX")
trap cleanup EXIT
# INT kills the child and lets the summary below print anyway, so an
# impatient Ctrl-C still tells you how far it got — and, more importantly,
# still gives the memory back.
trap 'echo; echo " interrupted"; echo "stop interrupted" >> "$STATE"; [ -n "$CHILD" ] && kill -KILL "$CHILD" 2>/dev/null || true' INT
echo "push"
echo " step ${STEP_MB} MB per allocation, every page touched"
echo " ceiling ${ceiling} MB claimed"
if [ -n "$TO_MB" ]; then
echo " stopping at ${TO_MB} MB (--to)"
elif [ "$TO_OOM" = yes ]; then
echo " ! stopping only when the kernel stops it (--to-oom)"
echo " the allocating child is marked as the preferred OOM victim,"
echo " but nothing about an OOM kill is entirely polite. Not on a box"
echo " running anything you mind losing."
else
echo " stopping when headroom drops below ${FLOOR_MB} MB"
fi
echo
allocator &
CHILD=$!
wait "$CHILD" || rc=$?
CHILD=""
trap - INT
last=$(grep -E '^[0-9]' "$STATE" 2>/dev/null | tail -1 || true)
held=$(echo "$last" | awk '{print $1}')
rss=$(echo "$last" | awk '{print $2}')
swapat=$(awk '/^swapat/{print $2}' "$STATE" 2>/dev/null | head -1 || true)
stop=$(awk '/^stop/{print $2}' "$STATE" 2>/dev/null | head -1 || true)
echo
if [ -z "$held" ]; then
echo " ! nothing was allocated. Even one ${STEP_MB} MB chunk failed —"
echo " try a smaller --step, or check ulimit -v in 'status'."
return 1
fi
echo " reached ${rss:-$held} MB resident"
[ -n "$swapat" ] && echo " swapping from ${swapat} MB"
case "$stop" in
reached-the-cap)
echo " outcome stopped at the --to cap, not at a limit."
echo " The box held ${TO_MB} MB without complaint; there is more." ;;
floor)
echo " outcome stopped with a cushion intact, by choice."
echo " The real ceiling is higher — --to-oom finds it, at the"
echo " cost of an actual OOM kill." ;;
interrupted)
echo " outcome interrupted at ${rss:-$held} MB — where you stopped it,"
echo " not where the box did." ;;
*)
# No stop line means the child did not decide to stop: it was ended.
if [ "$rc" -ge 128 ]; then
echo " outcome the child was killed (signal $((rc - 128))) at ${rss:-$held} MB."
elif [ "$rc" -ne 0 ]; then
echo " outcome the allocation failed at ${rss:-$held} MB (exit ${rc})."
echo " bash could not get the next chunk — an honest malloc"
echo " failure rather than a kill. That is the strict-overcommit"
echo " or ulimit path."
else
echo " outcome ended at ${rss:-$held} MB."
fi
local ev
ev=$(dmesg 2>/dev/null | tail -80 | grep -iE 'oom-kill|killed process' | tail -1 || true)
if [ -n "$ev" ]; then
echo " kernel ${ev#*] }"
else
echo " - dmesg is unreadable here (dmesg_restrict, or no privilege),"
echo " so the kill cannot be confirmed from this side. The number stands."
fi ;;
esac
# The gap between the claim and the measurement is the finding — but only
# when the BOX chose where to stop. An empty $stop means the child was ended
# rather than deciding to end; anything else (--to, the floor) is a stop we
# asked for, and flagging those as short of the ceiling would put a warning
# on every deliberately small run.
local got="${rss:-$held}"
echo
if [ -z "$stop" ] && [ "$got" -lt $(( ceiling * 70 / 100 )) ]; then
echo " ! claimed ${ceiling} MB, gave up ${got} MB — under 70% of it."
echo " Something is taking the difference. 'status' names the candidates:"
echo " a cgroup cap, ulimit -v, or memory already resident."
fi
return 0
}
# ── all ────────────────────────────────────────────────────────────────────
all() {
status
echo
echo "────────────────────────────────────────────────────────────"
echo
push
local got budget_mb ceiling
load_config
if [ -n "$BUDGET_GB" ]; then
budget_mb=$(( BUDGET_GB * 1024 ))
else
budget_mb=$(( NODES * NODE_MB ))
fi
ceiling=$(effective_ceiling_mb)
got=$(grep -E '^[0-9]' "$STATE" 2>/dev/null | tail -1 | awk '{print $2}' || true)
[ -n "$got" ] || got=0
echo
echo "verdict"
if [ -n "$BUDGET_GB" ]; then
echo " budget ${budget_mb} MB (--budget)"
else
# rig's own figure for this profile: nodes times what one node costs.
# Addons carry no memory figure in rig yet, so this is the cluster alone
# and whatever you deploy comes on top. --budget once you know that too.
echo " budget ${budget_mb} MB — profile ${PROFILE_NAME}: ${NODES} node(s) x ${NODE_MB} MB,"
echo " the cluster alone; your workload comes on top (--budget GB)"
fi
echo " measured ${got} MB handed over"
if [ "$got" -ge "$budget_mb" ]; then
echo " fits, with $(( got - budget_mb )) MB spare."
if [ "$got" -lt $(( budget_mb * 130 / 100 )) ]; then
echo " - under 30% spare is thin once a workload runs on top: memory use"
echo " is spiky, and the spikes are what get killed."
fi
else
echo " ! short by $(( budget_mb - got )) MB."
if [ "$ceiling" -ge "$budget_mb" ]; then
echo " The box CLAIMS enough (${ceiling} MB) but did not deliver it."
echo " Free something, or read the caps section again."
else
echo " The box does not have it to give. A bigger machine, or a profile"
echo " with fewer nodes."
fi
fi
return 0
}
# ── main ───────────────────────────────────────────────────────────────────
parse_flags() {
while [ $# -gt 0 ]; do
case "$1" in
--to) TO_MB=$(( ${2:?--to needs a value in GB} * 1024 )); shift 2 ;;
--to-mb) TO_MB="${2:?--to-mb needs a value in MB}"; shift 2 ;;
--step) STEP_MB="${2:?--step needs a value in MB}"; STEP_EXPLICIT=yes; shift 2 ;;
--to-oom) TO_OOM=yes; shift ;;
--budget) BUDGET_GB="${2:?--budget needs a value in GB}"; BUDGET_EXPLICIT=yes; shift 2 ;;
*) echo "unknown argument: $1" >&2; exit 1 ;;
esac
done
if [ "$TO_OOM" = yes ] && [ -n "$TO_MB" ]; then
echo "--to and --to-oom contradict each other: one stops early, the other" >&2
echo "refuses to stop at all. Pick one." >&2
exit 1
fi
return 0
}
require_linux
find_cgroup
cmd="${1:-status}"
[ $# -gt 0 ] && shift
case "$cmd" in
status) parse_flags "$@"; status ;;
push) parse_flags "$@"; push ;;
all) parse_flags "$@"; all ;;
backup) backup ;;
restore) restore ;;
*) echo "usage: $0 [status|push|all|backup|restore]" >&2
echo " push [--to GB] [--to-mb MB] [--step MB] [--to-oom]" >&2
echo " all [--budget GB]" >&2
exit 1 ;;
esac

23
rig/standalone/data/Makefile
View File

@@ -1,23 +0,0 @@
# GENERATED by make standalone — do not edit
#
# Shorthand for the scripts beside it; they run without it. Every target
# calls a verb its script accepts — read from that script's own dispatch.
HERE := $(dir $(abspath $(lastword $(MAKEFILE_LIST))))
ARGS := $(wordlist 2,$(words $(MAKECMDGOALS)),$(MAKECMDGOALS))
ifneq ($(ARGS),)
$(eval $(ARGS):;@:)
.PHONY: $(ARGS)
endif
.DEFAULT_GOAL := help
.PHONY: help deps mem
help: ## list targets
@grep -hE '^[a-z][a-z-]*:.*?##' $(MAKEFILE_LIST) | sed 's/:.*##/\t/' | expand -t16
deps: ## rigdeps.sh [detect|list|verify|fetch|install] (default detect)
bash $(HERE)rigdeps.sh $(or $(ARGS),detect)
mem: ## rigmini.sh [status|push|all|backup|restore] (default status)
bash $(HERE)rigmini.sh $(or $(ARGS),status)

964
rig/standalone/data/rigdeps.sh
View File

@@ -1,964 +0,0 @@
#!/usr/bin/env bash
# GENERATED by make standalone — do not edit
#
# rigdeps.sh for profile 'data', flattened from:
# ctrl/deps.sh
# ctrl/lib/config.sh
# Edit those and run `make standalone`. Changes made here are lost, and
# `make selftest` fails while this file differs from what rig generates.
# ── from the libraries ──
declare -- CONFIG_OVERRIDABLE=$'PROFILE CLUSTER K8S_VERSION KIND_CONFIG ADDONS\n REGISTRY_MODE INGRESS_MODE DNS_MODE TILT_PORT\n SOURCE ARCH DEPS_SOURCE HTTP_PORT HTTPS_PORT\n REGISTRY_PORT MANIFESTS_DIR'
_config_restore ()
{
local line;
while IFS= read -r line; do
if [ -n "$line" ]; then
eval "export $line";
fi;
done <<< "$1";
return 0
}
default_cluster_name ()
{
local n;
n=$(basename "$(cd .. && pwd)");
n=$(echo "$n" | tr '[:upper:]' '[:lower:]' | tr -c 'a-z0-9-' '-');
n=$(echo "$n" | sed 's/^-*//; s/-*$//');
echo "${n:-rig}"
}
derive_port_base ()
{
local h;
h=$(printf '%s' "$1" | cksum | awk '{print $1}');
echo $((20000 + (h % 200) * 10))
}
render_kind_config ()
{
local host_workdir="${HOST_WORKDIR:-$(cd .. && pwd)}";
sed -e "s|\${CLUSTER}|${CLUSTER}|g" -e "s|\${NODE_IMAGE}|${NODE_IMAGE}|g" -e "s|\${HTTP_PORT}|${HTTP_PORT}|g" -e "s|\${HOST_WORKDIR}|${host_workdir}|g" "$KIND_CONFIG_PATH"
}
# ── configuration, frozen for profile 'data' ──
load_config() {
local k saved=""
for k in $CONFIG_OVERRIDABLE; do
if [ -n "${!k+x}" ]; then saved+="$k=$(printf '%q' "${!k}")"$'\n'; fi
done
declare -gx ADDONS="metallb postgres redis airflow"
declare -gx AIRFLOW_ADMIN_USER="admin"
declare -gx AIRFLOW_IMAGE="apache/airflow:2.10.4"
declare -g AUDIT="off"
declare -gx CERT_MANAGER_VERSION="v1.21.1"
declare -g CLUSTER="rig"
declare -gx COMPOSE_SHA256="db1889184726840f75c4f9c001048430d4f25b3be3cb084d3ddd762bc0aed576"
declare -gx COMPOSE_URL="https://github.com/docker/compose/releases/download/v5.5.1/docker-compose-linux-x86_64"
declare -gx COMPOSE_VERSION="5.5.1"
declare -gx CTLPTL_SHA256="c63a1ec28e60bc3faf6becb76f53355c5cf5e0143dafdd27ad85db5584fa6b1e"
declare -gx CTLPTL_URL="https://github.com/tilt-dev/ctlptl/releases/download/v0.9.4/ctlptl.0.9.4.linux.x86_64.tar.gz"
declare -gx CTLPTL_VERSION="0.9.4"
declare -gx DATA_NAMESPACE="data"
declare -gx DNS_MODE="hosts"
declare -g HTTPS_PORT="20311"
declare -g HTTP_PORT="20310"
declare -gx INGRESS_MODE="hostport"
declare -gx JQ_SHA256="b1c22172dd303f3be49e935aa56aa48a8b7a46e0bc838b4997d3bb451495870f"
declare -gx JQ_URL="https://github.com/jqlang/jq/releases/download/jq-1.8.2/jq-linux-amd64"
declare -gx JQ_VERSION="1.8.2"
declare -gx K8S_VERSION="v1_36"
declare -gx KIND_CONFIG="kind-config.yaml.tpl"
declare -g KIND_CONFIG_PATH="./k8s/kind-config.yaml.tpl"
declare -g KIND_CONFIG_SHOWN="ctrl/k8s/kind-config.yaml.tpl"
declare -gx KIND_SHA256="50030de23cf40a18505f20426f6a8506bedf13c6e509244bd1fa9463721b0f54"
declare -gx KIND_URL="https://github.com/kubernetes-sigs/kind/releases/download/v0.32.0/kind-linux-amd64"
declare -gx KIND_VERSION="v0.32.0"
declare -g KUBECONTEXT="kind-rig"
declare -gx KUBECTL_SHA256="ebbd080e7c2e275093b55915722043257eb24004363e20acb3c4d71919f88336"
declare -gx KUBECTL_URL="https://dl.k8s.io/release/v1.36.3/bin/linux/amd64/kubectl"
declare -gx KUBECTL_VERSION="v1.36.3"
declare -g MANIFESTS_DIR="ctrl/k8s/overlays/dev"
declare -gx METALLB_VERSION="v0.16.0"
declare -gx METRICS_SERVER_VERSION="v0.9.0"
declare -g NODES="1"
declare -g NODE_IMAGE="kindest/node:v1.36.1@sha256:3489c7674813ba5d8b1a9977baea8a6e553784dab7b84759d1014dbd78f7ebd5"
declare -gx NODE_IMAGE_v1_33="kindest/node:v1.33.12@sha256:3f5c8443c620245e4d355cfe09e96a91ead32ceaa569d3f1ca9edf0cb2fe2ff4"
declare -gx NODE_IMAGE_v1_34="kindest/node:v1.34.8@sha256:02722c2dedddcfc00febf5d27fbeb9b7b2c14294c82109ff4a85d89ac9ba3256"
declare -gx NODE_IMAGE_v1_35="kindest/node:v1.35.5@sha256:ce977ae6d65918d0b58a5f8b5e940429c2ce42fa3a5619ec2bbc60b949c0ac95"
declare -gx NODE_IMAGE_v1_36="kindest/node:v1.36.1@sha256:3489c7674813ba5d8b1a9977baea8a6e553784dab7b84759d1014dbd78f7ebd5"
declare -g NODE_MB="800"
declare -gx POSTGRES_DB="app"
declare -gx POSTGRES_IMAGE="postgres:16-alpine"
declare -gx POSTGRES_STORAGE="2Gi"
declare -gx POSTGRES_USER="app"
declare -gx PROFILE="data"
declare -gx PROFILE_NAME="data"
declare -gx REDIS_IMAGE="redis:7-alpine"
declare -gx REGISTRY_IMAGE="registry:2"
declare -gx REGISTRY_MODE="local"
declare -g REGISTRY_PORT="20313"
declare -gx STUB_IMAGE="python:3.12-slim"
declare -g TILT_PORT="20312"
declare -gx TILT_SHA256="e9672b8a18d43501f35dcfe98465969a7db0e436b36cf0c50c7e6f8d40de5fe6"
declare -gx TILT_URL="https://github.com/tilt-dev/tilt/releases/download/v0.37.6/tilt.0.37.6.linux.x86_64.tar.gz"
declare -gx TILT_VERSION="0.37.6"
_config_restore "$saved"
}
# ── end of frozen configuration ──
# ── ctrl/deps.sh ──
# Toolchain installer: detect the host, install a pinned toolchain onto it, then
# report what it could not do.
#
# It never runs the cluster, never uses sudo or apt, and writes only into
# $OUT_BIN (default ~/.local/bin). Everything that would touch the host proper —
# systemd, inotify limits, .wslconfig, docker group — is REPORTED for a human to
# decide on, never performed. That is what makes it safe to run on a machine that
# already has a working setup.
#
# Usage (normally via `make deps`, or directly):
# deps.sh detect # report host facts only, change nothing
# deps.sh list # the pinned versions
# deps.sh verify [core|dev] # run what is installed and see if it works
# deps.sh fetch [core|dev] [--to DIR] # download + verify into DIR
# deps.sh install [core|dev] # detect, fetch, install, report
#
# Tiers: 'core' is kubectl + jq (talk to a cluster); 'dev' adds kind and tilt
# Default is dev.
#
# Runs both inside the installer container and bare on a host. Inside the
# container, host files are read through $HOST_ROOT (mount / as :ro); bare, it
# falls back to /.
set -euo pipefail
# Keep the caller's cwd so a relative --to resolves where the user expects,
# not against ctrl/ once we've moved.
INVOKED_FROM="$PWD"
cd "$(dirname "$0")"
# Pins arrive through load_config like every other setting, not by sourcing
# versions.env here. That is what lets `make standalone` freeze them into a
# one-file installer: configuration has exactly one way in.
# (sourced library inlined above)
load_config
# Resolve a possibly-relative path against the caller's original directory.
abspath() {
case "$1" in
/*) echo "$1" ;;
*) echo "$INVOKED_FROM/$1" ;;
esac
}
OUT_BIN="${OUT_BIN:-$HOME/.local/bin}"
HOST_ROOT="${HOST_ROOT:-/}"
DEPS_SOURCE="${DEPS_SOURCE:-upstream}"
DEPS_ARTIFACTORY_URL="${DEPS_ARTIFACTORY_URL:-}"
BAKED_BIN="${BAKED_BIN:-/opt/rig/bin}"
# Collected by detect(), printed by report_manual() at the very end.
MANUAL=()
# Host FILES (/etc/..., /mnt/c/...) must be read through the mount. Kernel-level
# facts (kernel version, meminfo, inotify) are shared with the container, so the
# container's own view is already the host's.
# A /proc/meminfo field in MB, 0 if the field is absent. MEMINFO exists so the
# tight and does-not-fit branches can be exercised against a real machine's
# numbers from somewhere else; in normal use it is always /proc/meminfo.
mb_of() {
awk -v k="$1:" '$1 == k { printf "%d", $2 / 1024; found = 1 }
END { if (!found) printf "0" }' "${MEMINFO:-/proc/meminfo}"
}
host_file() {
local p="${1#/}"
if [ "$HOST_ROOT" != "/" ] && [ -e "$HOST_ROOT/$p" ]; then
echo "$HOST_ROOT/$p"
else
echo "/$p"
fi
}
# ── the tools this script itself needs ─────────────────────────────────────
arch() {
case "$(uname -m)" in
x86_64|amd64) echo amd64 ;;
aarch64|arm64) echo arm64 ;;
*) uname -m ;;
esac
}
# The pins above are amd64. Rather than download something that cannot execute
# and let it fail as "cannot execute binary file: Exec format error", say so
# here and hand over the commands that produce the right checksums.
require_amd64() {
local a; a=$(arch)
[ "$a" = "amd64" ] && return 0
cat >&2 <<EOF
This machine is ${a} ($(uname -m)); every pin in this script is linux/amd64.
Nothing here would run, so it does not download. To make an ${a} version, the
URLs need the ${a} artifact and the checksums need to come from each project's
own published list — not from these values, and not from a download you did:
curl -sSL https://github.com/kubernetes-sigs/kind/releases/download/${KIND_VERSION}/checksums.txt
curl -sSL https://dl.k8s.io/release/${KUBECTL_VERSION}/bin/linux/${a}/kubectl.sha256
curl -sSL https://github.com/tilt-dev/tilt/releases/download/v${TILT_VERSION}/checksums.txt
curl -sSL https://github.com/tilt-dev/ctlptl/releases/download/v${CTLPTL_VERSION}/checksums.txt
curl -sSL https://github.com/jqlang/jq/releases/download/jq-${JQ_VERSION}/sha256sum.txt
Edit the pinned block at the top of this file with what those print.
EOF
exit 1
}
DL=""
pick_downloader() {
if command -v curl >/dev/null 2>&1; then DL=curl
elif command -v wget >/dev/null 2>&1; then DL=wget
else
echo "neither curl nor wget is installed, so nothing can be downloaded." >&2
echo "Install one first: $(pkg_install_cmd curl)" >&2
exit 1
fi
}
download() {
local url="$1" out="$2"
case "$DL" in
curl) curl -fsSL --retry 3 -o "$out" "$url" ;;
wget) wget -q --tries=3 -O "$out" "$url" ;;
esac
}
SHA=""
pick_sha() {
if command -v sha256sum >/dev/null 2>&1; then SHA=sha256sum
elif command -v shasum >/dev/null 2>&1; then SHA="shasum -a 256"
else
echo "no sha256sum and no shasum — downloads could not be verified." >&2
echo "Refusing to install unverified binaries." >&2
exit 1
fi
}
# ── package manager, for the instructions only ─────────────────────────────
# This never runs a package manager. It names one so the reported action is
# something you can paste, on the distro you are actually on — an apt line on
# Amazon Linux 2 is a wrong answer dressed up as help.
pkg_install_cmd() {
local pkg="$1"
if command -v apt-get >/dev/null 2>&1; then echo "sudo apt-get update && sudo apt-get install -y $pkg"
elif command -v dnf >/dev/null 2>&1; then echo "sudo dnf install -y $pkg"
elif command -v yum >/dev/null 2>&1; then echo "sudo yum install -y $pkg"
elif command -v zypper >/dev/null 2>&1; then echo "sudo zypper install -y $pkg"
elif command -v apk >/dev/null 2>&1; then echo "sudo apk add $pkg"
else echo "install '$pkg' with this system's package manager"
fi
}
docker_pkg() {
# Debian and Ubuntu call it docker.io; the RPM distros call it docker.
if command -v apt-get >/dev/null 2>&1; then echo docker.io; else echo docker; fi
}
# ── detect ─────────────────────────────────────────────────────────────────
# Windows outside WSL — Git Bash, MSYS, Cygwin — looks close enough to work and
# then fails in a pile of confusing ways: no /proc, no docker socket, none of
# the tooling. Detectable, so name it instead.
require_linux() {
case "$(uname -s)" in
MINGW*|MSYS*|CYGWIN*)
cat >&2 <<'EOF'
This has to run inside WSL, not Git Bash / MSYS / Cygwin.
If WSL is not installed yet, from an elevated PowerShell or Command Prompt:
wsl --install
That enables Windows features and needs a reboot, so it is not something this
script will do for you. Afterwards, open the Linux shell it installs and run
this from there.
See "Starting from plain Windows" in README.md.
EOF
exit 1 ;;
esac
}
is_wsl() { grep -qi microsoft /proc/version 2>/dev/null; }
detect() {
echo "host"
echo " kernel $(uname -r)"
echo " arch $(arch) ($(uname -m))"
local osr; osr=$(host_file /etc/os-release)
[ -r "$osr" ] && echo " distro $(sed -n 's/^PRETTY_NAME="\(.*\)"/\1/p' "$osr")"
# In MB. Whole gigabytes lose nearly half a GB on exactly the machines where
# it matters: 1874 MB available used to print as "1 GB". Facts only — whether
# that is enough depends on the profile, which check.sh knows and this does not.
local total_mb avail_mb swap_total_mb swap_used_mb om
total_mb=$(mb_of MemTotal)
avail_mb=$(mb_of MemAvailable)
swap_total_mb=$(mb_of SwapTotal)
swap_used_mb=$(( swap_total_mb - $(mb_of SwapFree) ))
printf " memory %d MB total, %d MB available\n" "$total_mb" "$avail_mb"
if [ "$swap_total_mb" -gt 0 ]; then
printf " swap %d MB used of %d MB\n" "$swap_used_mb" "$swap_total_mb"
fi
# How the kernel answers an allocation it cannot really satisfy. With 1 it
# always says yes and settles up later with the OOM killer, so a cluster that
# starts cleanly can still lose processes afterwards.
om=$(cat "${OVERCOMMIT_FILE:-/proc/sys/vm/overcommit_memory}" 2>/dev/null || echo '?')
case "$om" in
0) echo " overcommit 0 heuristic — allocations are granted on a guess" ;;
1) echo " overcommit 1 always — every allocation succeeds; the OOM killer is the only limit" ;;
2) echo " overcommit 2 strict — an allocation fails honestly instead of killing later" ;;
esac
echo " install to $OUT_BIN"
detect_libc
detect_prereqs
detect_wsl
detect_filesystem
detect_docker
detect_inotify
detect_toolchain
}
detect_wsl() {
if ! is_wsl; then
echo " platform native linux"
return
fi
echo " platform WSL"
# systemd is off by default in WSL, and the ingress/DNS paths that use a
# host service need it. Enabling it requires a Windows-side restart, which
# cannot be issued from inside the distro.
local wc; wc=$(host_file /etc/wsl.conf)
if [ -r "$wc" ] && grep -qE '^\s*systemd\s*=\s*true' "$wc"; then
echo " systemd enabled in wsl.conf"
else
echo " ! systemd not enabled in /etc/wsl.conf"
MANUAL+=("Enable systemd — add to /etc/wsl.conf:
[boot]
systemd=true
then from a WINDOWS terminal (not this shell): wsl --shutdown")
fi
# WSL regenerates /etc/resolv.conf on every boot, which silently reverts any
# local DNS setup.
if [ -r "$wc" ] && grep -qE '^\s*generateResolvConf\s*=\s*false' "$wc"; then
echo " resolv.conf pinned (generateResolvConf=false)"
else
echo " - resolv.conf is WSL-generated; DNS_MODE=dnsmasq would be reverted on reboot"
fi
local wcfg
wcfg=$(ls "$HOST_ROOT"/mnt/c/Users/*/.wslconfig 2>/dev/null | head -1 || true)
if [ -n "$wcfg" ] && grep -qE '^\s*memory\s*=' "$wcfg"; then
echo " wslconfig memory set: $(grep -E '^\s*memory\s*=' "$wcfg" | tr -d ' ')"
else
MANUAL+=("Cap/raise the WSL VM memory — see what is set versus what booted:
make mem status
It prints the edit to make and the command to apply it.")
fi
}
# Not a path check: /mnt is an ordinary mount point and an ext4 disk mounted
# there is perfectly fine. What matters is the filesystem. The Windows drives
# arrive as 9p (WSL2) or drvfs (WSL1); network and fuse mounts behave the same
# way. None of them deliver inotify events, so anything watching files goes
# quiet without saying why.
watch_hostile_fs() {
local dir="$1" fstype
fstype=$(findmnt -no FSTYPE --target "$dir" 2>/dev/null || true)
[ -n "$fstype" ] || fstype=$(stat -f -c %T "$dir" 2>/dev/null || true)
case "$fstype" in
9p|v9fs|drvfs|cifs|smb3|nfs|nfs4|fuse.sshfs|fuseblk) echo "$fstype" ;;
*) echo "" ;;
esac
}
detect_filesystem() {
local root fstype
root=$(cd .. && pwd -P)
fstype=$(watch_hostile_fs "$root")
if [ -n "$fstype" ]; then
echo " ! this directory is on $fstype — file watching will not work"
MANUAL+=("Move this onto the local disk. Nothing watching files sees changes
on a $fstype mount, and everything else is slower:
cp -r \"$root\" ~/ && cd ~/$(basename "$root")")
else
echo " filesystem $root ($(findmnt -no FSTYPE --target "$root" 2>/dev/null || echo local))"
fi
}
# tilt is the one binary here that needs a recent glibc. MEASURED, not guessed:
# tilt 0.37.6 on Amazon Linux 2 (glibc 2.26) fails with
#
# /lib64/libc.so.6: version `GLIBC_2.34' not found (required by .../tilt)
#
# which names a symbol rather than the problem. Amazon Linux 2 is a stock
# WorkSpaces bundle, so this is the likely case, not an exotic one. Report the
# version now; `verify` catches the actual failure after installing.
detect_libc() {
local v=""
if command -v ldd >/dev/null 2>&1; then
v=$(ldd --version 2>/dev/null | head -1 | grep -oE '[0-9]+\.[0-9]+$' || true)
fi
if [ -z "$v" ]; then
echo " libc unknown (no ldd) — 'verify' is the real test"
return 0
fi
echo " libc glibc $v"
if [ "$(printf '%s\n2.34\n' "$v" | sort -V | head -1)" != "2.34" ]; then
echo " ! older than glibc 2.34, which tilt needs. kubectl, kind, jq and"
echo " ctlptl are static or libc-only and work here; tilt will not start."
echo " Install the core tier, or run tilt from a container."
fi
return 0
}
# What this script needs to do its own job. Reported here so `detect` answers
# "will install work?" instead of leaving you to find out one download in.
# Amazon Linux 2 ships without tar, which is exactly the surprise this catches.
detect_prereqs() {
local missing=""
if command -v curl >/dev/null 2>&1; then echo " download curl"
elif command -v wget >/dev/null 2>&1; then echo " download wget"
else echo " ! no curl and no wget — nothing can be downloaded"; missing+=" curl"
fi
if command -v sha256sum >/dev/null 2>&1 || command -v shasum >/dev/null 2>&1; then
echo " checksums ok"
else
echo " ! no sha256sum or shasum — downloads could not be verified"
missing+=" coreutils"
fi
if command -v tar >/dev/null 2>&1 && command -v gzip >/dev/null 2>&1; then
echo " archives tar + gzip"
else
echo " ! no tar/gzip — tilt and ctlptl ship as tarballs, so the dev tier"
echo " cannot be unpacked. The core tier is two bare binaries and is fine."
missing+=" tar gzip"
fi
if [ -n "$missing" ]; then
MANUAL+=("Install what this script needs to run at all:
$(pkg_install_cmd "${missing# }")")
fi
return 0
}
detect_docker() {
# Reachability of the daemon is the real question, and the CLI is only how
# we ask it. Note that when this runs inside the installer container, Docker
# necessarily exists on the host — otherwise nothing would be executing —
# so a missing CLI in here is an installer packaging bug, not a host problem.
if ! command -v docker >/dev/null 2>&1; then
if [ -S /var/run/docker.sock ]; then
echo " docker socket present (no cli in this context)"
else
echo " ! docker not found and no socket at /var/run/docker.sock"
MANUAL+=("Install Docker — the one true prerequisite, and the only thing here
that needs root:
$(pkg_install_cmd "$(docker_pkg)")
sudo systemctl enable --now docker
sudo usermod -aG docker \"\$USER\"
then log out and back in, so the new group applies to your shell.")
fi
return
fi
if docker info >/dev/null 2>&1; then
echo " docker $(docker version --format '{{.Server.Version}}' 2>/dev/null)"
local n
n=$(docker ps --filter "label=io.x-k8s.kind.cluster" --format '{{.Names}}' 2>/dev/null | wc -l)
# Must be an `if`, not `[ ] && echo`: as the last statement in this
# function the latter returns 1 when the count is zero, and `set -e`
# then kills the caller. That is the fresh-machine case — no clusters
# yet — so the bug only ever shows up where it does most harm.
if [ "$n" -gt 0 ]; then
echo " - $n kind node container(s) already running; see 'make cluster list'"
fi
else
echo " ! docker cli present but the daemon is unreachable"
MANUAL+=("Start Docker, or add yourself to the docker group:
sudo usermod -aG docker \"\$USER\" # then log out and back in")
fi
}
# kind and Tilt both watch large trees. WSL ships defaults (8192/128) far too low,
# and the failure mode is silent: Tilt simply stops noticing file changes.
detect_inotify() {
local w i
w=$(cat /proc/sys/fs/inotify/max_user_watches 2>/dev/null || echo 0)
i=$(cat /proc/sys/fs/inotify/max_user_instances 2>/dev/null || echo 0)
echo " inotify watches=$w instances=$i"
if [ "$w" -lt 524288 ] || [ "$i" -lt 512 ]; then
echo " ! inotify limits are low — Tilt will silently stop noticing file changes"
MANUAL+=("Raise inotify limits (needs root on the host):
echo -e 'fs.inotify.max_user_watches=524288\\nfs.inotify.max_user_instances=512' \\
| sudo tee /etc/sysctl.d/99-rig.conf
sudo sysctl --system")
fi
}
# ── fetch ──────────────────────────────────────────────────────────────────
# Resolve where a given artifact comes from, honouring DEPS_SOURCE.
resolve_url() {
local upstream="$1"
case "$DEPS_SOURCE" in
upstream) echo "$upstream" ;;
artifactory)
if [ -z "$DEPS_ARTIFACTORY_URL" ]; then
echo "DEPS_SOURCE=artifactory but DEPS_ARTIFACTORY_URL is empty" >&2
exit 1
fi
echo "${DEPS_ARTIFACTORY_URL%/}/$(basename "$upstream")"
;;
*) echo "unsupported DEPS_SOURCE '$DEPS_SOURCE' for a download" >&2; exit 1 ;;
esac
}
verify() {
local file="$1" want="$2" name="$3" got
got=$($SHA "$file" | awk '{print $1}')
if [ "$got" != "$want" ]; then
echo "checksum mismatch for $name" >&2
echo " expected $want" >&2
echo " got $got" >&2
exit 1
fi
}
# fetch_bin <name> <url> <sha256> <dest-dir> — a bare binary
fetch_bin() {
local name="$1" url="$2" sha="$3" dest="$4"
local tmp="$dest/.$name.tmp"
echo " fetching $name"
download "$(resolve_url "$url")" "$tmp"
verify "$tmp" "$sha" "$name"
mv "$tmp" "$dest/$name"
chmod +x "$dest/$name"
}
# fetch_tgz <name> <url> <sha256> <dest-dir> <path-inside-archive> <strip>
# Archive layouts differ — tilt's is flat (the binary at the root, strip=0),
# others nest it a directory down — so the caller says which.
fetch_tgz() {
local name="$1" url="$2" sha="$3" dest="$4" inner="$5" strip="$6"
local tmp="$dest/.$name.tgz"
echo " fetching $name"
download "$(resolve_url "$url")" "$tmp"
verify "$tmp" "$sha" "$name"
# --no-same-owner: extracting as root would otherwise restore the uid/gid
# baked into the archive (some ship as uid 1001), leaving a binary the host
# user does not own.
tar -xzf "$tmp" -C "$dest" --strip-components="$strip" --no-same-owner "$inner"
rm -f "$tmp"
chmod +x "$dest/$name"
}
# The installer runs as root so it can reach the docker socket, which means
# everything it writes into a mounted volume lands root-owned and unusable from
# the host. Hand it back to whoever owns the mount point (the host user created
# that directory before mounting it).
fix_ownership() {
local dir="$1"
[ -d "$dir" ] || return 0
local owner="${HOST_UID:-}:${HOST_GID:-}"
if [ "$owner" = ":" ]; then
owner=$(stat -c '%u:%g' "$dir")
fi
[ "$owner" = "0:0" ] && return 0
chown -R "$owner" "$dir" 2>/dev/null || true
}
# Two tiers, because not every machine should get cluster tooling.
#
# core kubectl, jq — talk to a cluster someone else runs. Nothing that
# creates one. Appropriate on a managed or corporate-issued machine
# where development tools are not wanted by default.
# dev core plus kind and tilt — build clusters and hot-reload into them.
#
# The split exists because "install the toolchain" is not one decision: on a
# managed workspace the right answer is kubectl and nothing else.
CORE_TOOLS="kubectl jq"
# No helm: every addon installs with `kubectl apply -f <url>`, so nothing here
# has ever invoked it. Add it back the day something actually needs a chart.
#
# ctlptl is 'dev' rather than 'core' for the same reason kind is: core is "talk
# to a cluster someone else runs", and ctlptl builds them. It earns its place
# because it is what wires a cluster to a local registry — without one, an
# unqualified image name resolves to docker.io/library/<name> and there is
# nothing structural stopping a push there.
#
# docker-compose is 'dev' for the same reason, and is here because the distro
# docker packages ship the daemon and CLI but frequently not the compose
# plugin — so `docker compose up` fails with "unknown command" on an otherwise
# working Docker, and nothing about that message names the missing piece.
DEV_TOOLS="kind tilt ctlptl docker-compose"
# ── what is already on this machine ───────────────────────────────────────
#
# A tool already on PATH at its pinned version is left where it is. Without
# this, install downloads a second copy into OUT_BIN and then reports the first
# one as shadowed — noise, and wrong, when both are the same version. That is
# the normal state of any machine someone set up by hand, whatever directory
# they happened to choose.
pin_of() {
case "$1" in
kubectl) echo "$KUBECTL_VERSION" ;;
jq) echo "$JQ_VERSION" ;;
kind) echo "$KIND_VERSION" ;;
tilt) echo "$TILT_VERSION" ;;
ctlptl) echo "$CTLPTL_VERSION" ;;
docker-compose) echo "$COMPOSE_VERSION" ;;
esac
}
# The version string a binary reports. Each tool spells the question
# differently, and kubectl has to be told --client or it goes looking for a
# server to ask.
reported_version() {
local tool="$1" path="$2"
case "$tool" in
kubectl) "$path" version --client 2>/dev/null ;;
jq) "$path" --version 2>/dev/null ;;
*) "$path" version 2>/dev/null ;;
esac
}
# Does the binary at PATH report PIN? Matched as a whole version token, so
# 0.37.6 never matches 10.37.60, with the leading v optional either side: kind
# says v0.32.0, jq says jq-1.8.2, and tilt says v0.37.6 against a pin of 0.37.6.
#
# Bash's own regex rather than grep, deliberately. grep is not the same program
# on every machine — some builds reject patterns that others accept — and a
# failed grep inside a count reads exactly like a zero.
version_matches() {
local tool="$1" path="$2" pin="$3" out v re
out=$(reported_version "$tool" "$path") || return 1
v="${pin#v}"
v="${v//./\\.}"
re="(^|[^0-9.])v?${v}([^0-9.]|\$)"
[[ $out =~ $re ]]
}
# DEPS_ONLY narrows a fetch to the tools it names. Unset means the whole tier,
# which is what an explicit `deps.sh fetch` always gets: "download these into
# DIR" must not quietly skip something because this machine happens to have it.
# Only install() sets it, to what detect_toolchain found missing or mismatched.
want() { [ -z "${DEPS_ONLY:-}" ] || [[ " $DEPS_ONLY " == *" $1 "* ]]; }
# Every tool in the tier with its state, probed once and reported once. What
# still needs fetching is left in TOOLCHAIN_NEED for install() to act on.
TOOLCHAIN_NEED=""
detect_toolchain() {
local tier="${TIER:-dev}" b pin path found
TOOLCHAIN_NEED=""
echo
echo "toolchain (pinned, tier '$tier')"
for b in $(tier_tools "$tier"); do
pin=$(pin_of "$b")
path=$(command -v "$b" 2>/dev/null || true)
# compose is the one tool that is normally NOT a binary on PATH. It is a
# docker CLI plugin, so a machine where `docker compose` works perfectly
# has no `docker-compose` to find — and probing only PATH would report it
# missing and re-download a copy that is already there. That is the exact
# noise the version-aware skip exists to prevent, so ask docker instead.
if [ "$b" = docker-compose ] && [ -z "$path" ]; then
if found=$(docker compose version --short 2>/dev/null) && [ -n "$found" ]; then
if [ "${found#v}" = "${pin#v}" ]; then
printf " %-8s %-9s %s\n" "$b" "$pin" "docker cli plugin"
else
printf " ! %-8s wants %s, the docker cli plugin reports '%s'\n" \
"$b" "$pin" "$found"
TOOLCHAIN_NEED+="$b "
fi
continue
fi
fi
if [ -z "$path" ]; then
printf " - %-8s %-9s not found\n" "$b" "$pin"
TOOLCHAIN_NEED+="$b "
elif version_matches "$b" "$path" "$pin"; then
printf " %-8s %-9s %s\n" "$b" "$pin" "$path"
else
found=$(reported_version "$b" "$path" 2>/dev/null | head -1 || true)
printf " ! %-8s wants %s, %s reports '%s'\n" "$b" "$pin" "$path" "$found"
TOOLCHAIN_NEED+="$b "
fi
done
if [ -z "$TOOLCHAIN_NEED" ]; then
echo " every pinned tool is already on PATH — nothing to fetch"
else
echo " 'make deps' fetches only: ${TOOLCHAIN_NEED% }"
fi
}
fetch() {
local dest="$OUT_BIN" tier="${TIER:-dev}"
while [ $# -gt 0 ]; do
case "$1" in
--to) dest="$2"; shift 2 ;;
core|dev) tier="$1"; shift ;;
*) echo "unknown argument: $1" >&2; exit 1 ;;
esac
done
dest="$(abspath "$dest")"
mkdir -p "$dest"
TIER="$tier"
if [ "$DEPS_SOURCE" = "baked" ]; then
echo "installing baked binaries from $BAKED_BIN"
cp -a "$BAKED_BIN"/. "$dest"/
fix_ownership "$dest"
return
fi
if [ -n "${DEPS_ONLY:-}" ]; then
echo "fetching ${DEPS_ONLY% } (source: $DEPS_SOURCE)"
else
echo "fetching '$tier' toolchain (source: $DEPS_SOURCE)"
fi
if want kubectl; then fetch_bin kubectl "$KUBECTL_URL" "$KUBECTL_SHA256" "$dest"; fi
if want jq; then fetch_bin jq "$JQ_URL" "$JQ_SHA256" "$dest"; fi
if [ "$tier" = "dev" ]; then
if want kind; then fetch_bin kind "$KIND_URL" "$KIND_SHA256" "$dest"; fi
if want tilt; then fetch_tgz tilt "$TILT_URL" "$TILT_SHA256" "$dest" tilt 0; fi
if want ctlptl; then fetch_tgz ctlptl "$CTLPTL_URL" "$CTLPTL_SHA256" "$dest" ctlptl 0; fi
if want docker-compose; then
fetch_bin docker-compose "$COMPOSE_URL" "$COMPOSE_SHA256" "$dest"
fi
fi
fix_ownership "$dest"
# kind writes the kubeconfig as root too; hand that back as well when it's
# a mounted host directory rather than container-local state.
fix_ownership "${KUBE_DIR:-/out/kube}"
}
# ── install ────────────────────────────────────────────────────────────────
report_manual() {
echo
if [ ${#MANUAL[@]} -eq 0 ]; then
echo "nothing left to do by hand."
return
fi
echo "host actions this cannot perform (${#MANUAL[@]}):"
echo
local n=1
for m in "${MANUAL[@]}"; do
echo " $n. $m"
echo
n=$((n + 1))
done
}
# Installing into a directory that sits early in PATH silently replaces whatever
# the machine was already using — which on a shared or client machine can break
# unrelated work (kubectl more than one minor away from a cluster is the common
# one). Say so; never decide it for them.
# Downloading a verified binary proves it is the right file, not that this
# machine can run it. On an old distro tilt fails here, with a linker error
# about a missing symbol, and finding that out now beats finding out during a
# first cluster build.
verify_tools() {
local tier="${1:-dev}" b bin out rc broke=0
echo "checking that each one actually runs"
for b in $(tier_tools "$tier"); do
bin="$OUT_BIN/$b"
if [ ! -x "$bin" ]; then
printf ' %-14s not installed\n' "$b"
continue
fi
# Not piped into `head`. With `pipefail` set, a tool that prints more
# than one line gets SIGPIPE when head closes the pipe, and the
# pipeline reports 141 — so a working kubectl was announced as "does
# not run here", with its own correct version string as the evidence.
# Take the first line afterwards, from the string.
rc=0
case "$b" in
kubectl) out=$("$bin" version --client 2>&1) || rc=$? ;;
jq) out=$("$bin" --version 2>&1) || rc=$? ;;
*) out=$("$bin" version 2>&1) || rc=$? ;;
esac
out=${out%%$'\n'*}
if [ "$rc" -eq 0 ]; then
printf ' %-14s %s\n' "$b" "$out"
else
printf ' ! %-12s does not run here: %s\n' "$b" "$out"
broke=1
fi
done
if [ "$broke" -eq 1 ]; then
echo
echo " A binary that downloads and verifies but will not start is almost"
echo " always this distro's libc being older than the release needs."
echo " 'detect' prints the glibc version. The core tier (kubectl + jq)"
echo " has no such dependency and will work regardless."
fi
return 0
}
list() {
echo "pinned, linux/amd64 only:"
printf ' %-14s %s\n' kubectl "$KUBECTL_VERSION"
printf ' %-14s %s\n' jq "$JQ_VERSION"
printf ' %-14s %s\n' kind "$KIND_VERSION"
printf ' %-14s %s\n' tilt "$TILT_VERSION"
printf ' %-14s %s\n' ctlptl "$CTLPTL_VERSION"
printf ' %-14s %s\n' docker-compose "$COMPOSE_VERSION"
echo
echo " core = $CORE_TOOLS"
echo " dev = $CORE_TOOLS $DEV_TOOLS"
echo
echo "Checksums are pinned in the block at the top of this file. To bump one,"
echo "take the new checksum from the publisher's own release list — the header"
echo "comment has the exact commands."
return 0
}
tier_tools() { [ "$1" = "core" ] && echo "$CORE_TOOLS" || echo "$CORE_TOOLS $DEV_TOOLS"; }
warn_shadowing() {
local b existing shadowed="" tier="${1:-dev}"
for b in $(tier_tools "$tier"); do
[ -x "$OUT_BIN/$b" ] || continue
# Where would this resolve if OUT_BIN weren't in the way?
existing=$(PATH=$(echo "$PATH" | tr ':' '\n' | grep -vx "$OUT_BIN" | paste -sd:) \
command -v "$b" 2>/dev/null || true)
[ -n "$existing" ] || continue
[ "$existing" = "$OUT_BIN/$b" ] && continue
# The same version in both places is not a conflict: nothing changes for
# any other project whichever copy PATH happens to find first.
if version_matches "$b" "$existing" "$(pin_of "$b")"; then continue; fi
shadowed+=" $b $existing"$'\n'
done
[ -n "$shadowed" ] || return 0
case ":${PATH}:" in
*":$OUT_BIN:"*) ;;
*) return 0 ;; # not on PATH yet, so nothing is being shadowed
esac
echo
echo " ! these were already installed elsewhere and are now shadowed by $OUT_BIN:"
printf '%s' "$shadowed"
echo " Other projects on this machine will pick up the new versions."
MANUAL+=("Decide which toolchain wins. To keep the previous one, remove what
was just installed:
rm -f $(for b in $(tier_tools "$tier"); do printf '%s ' "$OUT_BIN/$b"; done)
Or install somewhere private instead:
OUT_BIN=\$PWD/def/bin make deps # then put that dir first in PATH")
}
# A copy in OUT_BIN only gives you `docker-compose`. That hyphenated form is the
# retired v1 spelling; every compose file written in the last few years assumes
# `docker compose`, which resolves plugins BY NAME out of a plugin directory.
# So the binary is fetched like any other and then linked, in your own home —
# no root, and nothing outside it.
install_compose_plugin() {
local src="$OUT_BIN/docker-compose" dir="$HOME/.docker/cli-plugins"
[ -x "$src" ] || return 0
mkdir -p "$dir"
# Something else already owns that name — docker-desktop and some distro
# packages install a real file there. Overwriting it would take the plugin
# away from whatever put it there, so say so and let the user decide.
if [ -e "$dir/docker-compose" ] && [ ! -L "$dir/docker-compose" ]; then
MANUAL+=("Something already installs the compose plugin at
$dir/docker-compose
To use rig's pinned build instead:
ln -sf $src $dir/docker-compose")
return 0
fi
ln -sfn "$src" "$dir/docker-compose"
echo " compose plugin -> $dir/docker-compose"
return 0
}
install() {
local tier="${1:-dev}" b
TIER="$tier"
detect
# detect_toolchain has already probed PATH. Fetch only what it found missing
# or at the wrong version; a tool already present at its pin stays where it is.
if [ -n "$TOOLCHAIN_NEED" ]; then
echo
DEPS_ONLY="$TOOLCHAIN_NEED" fetch "$tier"
echo
echo "installed to $OUT_BIN ($tier):"
for b in $TOOLCHAIN_NEED; do
if [ -x "$OUT_BIN/$b" ]; then echo " $b"; fi
done
if [ "$tier" = "core" ]; then
echo " (no kind/tilt — 'make deps dev' adds them)"
fi
# Only when compose was one of the things fetched: linking a binary
# that is already satisfied elsewhere on PATH would point the plugin at
# a copy rig did not install.
case " $TOOLCHAIN_NEED " in
*" docker-compose "*) install_compose_plugin ;;
esac
# Only worth saying when something actually landed in OUT_BIN. When every
# tool was satisfied elsewhere, OUT_BIN may reasonably be off PATH, and
# telling the user to add it would be advice to fix nothing.
case ":${PATH}:" in
*":$OUT_BIN:"*) ;;
*) MANUAL+=("Put the toolchain on your PATH — add to ~/.bashrc:
export PATH=\"${OUT_BIN}:\$PATH\"") ;;
esac
fi
warn_shadowing "$tier"
report_manual
}
# ── main ───────────────────────────────────────────────────────────────────
require_linux
# Read the command, THEN shift — and shift only if there is something there.
# A bare `shift` with no positional parameters returns 1, and under `set -e`
# that ended the script before a single line was printed: running this with no
# arguments at all, the documented default, did nothing and said nothing.
cmd="${1:-install}"
[ $# -gt 0 ] && shift
# Baked mode copies binaries already in the image, so it needs no downloader.
need_downloads() {
require_amd64
if [ "$DEPS_SOURCE" != baked ]; then pick_downloader; fi
pick_sha
}
case "$cmd" in
detect) detect; report_manual ;;
list) list ;;
verify) verify_tools "${1:-dev}" ;;
fetch) need_downloads; fetch "$@" ;;
install) need_downloads; install "${1:-dev}" ;;
*) echo "usage: $0 [detect|list|verify|fetch|install]" >&2
echo " install [core|dev] (default dev)" >&2
echo " fetch [core|dev] [--to DIR]" >&2
echo " OUT_BIN=<dir> overrides the install directory" >&2
exit 1 ;;
esac

865
rig/standalone/data/rigmini.sh
View File

@@ -1,865 +0,0 @@
#!/usr/bin/env bash
# GENERATED by make standalone — do not edit
#
# rigmini.sh for profile 'data', flattened from:
# ctrl/mem.sh
# ctrl/lib/config.sh
# Edit those and run `make standalone`. Changes made here are lost, and
# `make selftest` fails while this file differs from what rig generates.
# ── from the libraries ──
declare -- CONFIG_OVERRIDABLE=$'PROFILE CLUSTER K8S_VERSION KIND_CONFIG ADDONS\n REGISTRY_MODE INGRESS_MODE DNS_MODE TILT_PORT\n SOURCE ARCH DEPS_SOURCE HTTP_PORT HTTPS_PORT\n REGISTRY_PORT MANIFESTS_DIR'
_config_restore ()
{
local line;
while IFS= read -r line; do
if [ -n "$line" ]; then
eval "export $line";
fi;
done <<< "$1";
return 0
}
default_cluster_name ()
{
local n;
n=$(basename "$(cd .. && pwd)");
n=$(echo "$n" | tr '[:upper:]' '[:lower:]' | tr -c 'a-z0-9-' '-');
n=$(echo "$n" | sed 's/^-*//; s/-*$//');
echo "${n:-rig}"
}
derive_port_base ()
{
local h;
h=$(printf '%s' "$1" | cksum | awk '{print $1}');
echo $((20000 + (h % 200) * 10))
}
render_kind_config ()
{
local host_workdir="${HOST_WORKDIR:-$(cd .. && pwd)}";
sed -e "s|\${CLUSTER}|${CLUSTER}|g" -e "s|\${NODE_IMAGE}|${NODE_IMAGE}|g" -e "s|\${HTTP_PORT}|${HTTP_PORT}|g" -e "s|\${HOST_WORKDIR}|${host_workdir}|g" "$KIND_CONFIG_PATH"
}
# ── configuration, frozen for profile 'data' ──
load_config() {
local k saved=""
for k in $CONFIG_OVERRIDABLE; do
if [ -n "${!k+x}" ]; then saved+="$k=$(printf '%q' "${!k}")"$'\n'; fi
done
declare -gx ADDONS="metallb postgres redis airflow"
declare -gx AIRFLOW_ADMIN_USER="admin"
declare -gx AIRFLOW_IMAGE="apache/airflow:2.10.4"
declare -g AUDIT="off"
declare -gx CERT_MANAGER_VERSION="v1.21.1"
declare -g CLUSTER="rig"
declare -gx COMPOSE_SHA256="db1889184726840f75c4f9c001048430d4f25b3be3cb084d3ddd762bc0aed576"
declare -gx COMPOSE_URL="https://github.com/docker/compose/releases/download/v5.5.1/docker-compose-linux-x86_64"
declare -gx COMPOSE_VERSION="5.5.1"
declare -gx CTLPTL_SHA256="c63a1ec28e60bc3faf6becb76f53355c5cf5e0143dafdd27ad85db5584fa6b1e"
declare -gx CTLPTL_URL="https://github.com/tilt-dev/ctlptl/releases/download/v0.9.4/ctlptl.0.9.4.linux.x86_64.tar.gz"
declare -gx CTLPTL_VERSION="0.9.4"
declare -gx DATA_NAMESPACE="data"
declare -gx DNS_MODE="hosts"
declare -g HTTPS_PORT="20311"
declare -g HTTP_PORT="20310"
declare -gx INGRESS_MODE="hostport"
declare -gx JQ_SHA256="b1c22172dd303f3be49e935aa56aa48a8b7a46e0bc838b4997d3bb451495870f"
declare -gx JQ_URL="https://github.com/jqlang/jq/releases/download/jq-1.8.2/jq-linux-amd64"
declare -gx JQ_VERSION="1.8.2"
declare -gx K8S_VERSION="v1_36"
declare -gx KIND_CONFIG="kind-config.yaml.tpl"
declare -g KIND_CONFIG_PATH="./k8s/kind-config.yaml.tpl"
declare -g KIND_CONFIG_SHOWN="ctrl/k8s/kind-config.yaml.tpl"
declare -gx KIND_SHA256="50030de23cf40a18505f20426f6a8506bedf13c6e509244bd1fa9463721b0f54"
declare -gx KIND_URL="https://github.com/kubernetes-sigs/kind/releases/download/v0.32.0/kind-linux-amd64"
declare -gx KIND_VERSION="v0.32.0"
declare -g KUBECONTEXT="kind-rig"
declare -gx KUBECTL_SHA256="ebbd080e7c2e275093b55915722043257eb24004363e20acb3c4d71919f88336"
declare -gx KUBECTL_URL="https://dl.k8s.io/release/v1.36.3/bin/linux/amd64/kubectl"
declare -gx KUBECTL_VERSION="v1.36.3"
declare -g MANIFESTS_DIR="ctrl/k8s/overlays/dev"
declare -gx METALLB_VERSION="v0.16.0"
declare -gx METRICS_SERVER_VERSION="v0.9.0"
declare -g NODES="1"
declare -g NODE_IMAGE="kindest/node:v1.36.1@sha256:3489c7674813ba5d8b1a9977baea8a6e553784dab7b84759d1014dbd78f7ebd5"
declare -gx NODE_IMAGE_v1_33="kindest/node:v1.33.12@sha256:3f5c8443c620245e4d355cfe09e96a91ead32ceaa569d3f1ca9edf0cb2fe2ff4"
declare -gx NODE_IMAGE_v1_34="kindest/node:v1.34.8@sha256:02722c2dedddcfc00febf5d27fbeb9b7b2c14294c82109ff4a85d89ac9ba3256"
declare -gx NODE_IMAGE_v1_35="kindest/node:v1.35.5@sha256:ce977ae6d65918d0b58a5f8b5e940429c2ce42fa3a5619ec2bbc60b949c0ac95"
declare -gx NODE_IMAGE_v1_36="kindest/node:v1.36.1@sha256:3489c7674813ba5d8b1a9977baea8a6e553784dab7b84759d1014dbd78f7ebd5"
declare -g NODE_MB="800"
declare -gx POSTGRES_DB="app"
declare -gx POSTGRES_IMAGE="postgres:16-alpine"
declare -gx POSTGRES_STORAGE="2Gi"
declare -gx POSTGRES_USER="app"
declare -gx PROFILE="data"
declare -gx PROFILE_NAME="data"
declare -gx REDIS_IMAGE="redis:7-alpine"
declare -gx REGISTRY_IMAGE="registry:2"
declare -gx REGISTRY_MODE="local"
declare -g REGISTRY_PORT="20313"
declare -gx STUB_IMAGE="python:3.12-slim"
declare -g TILT_PORT="20312"
declare -gx TILT_SHA256="e9672b8a18d43501f35dcfe98465969a7db0e436b36cf0c50c7e6f8d40de5fe6"
declare -gx TILT_URL="https://github.com/tilt-dev/tilt/releases/download/v0.37.6/tilt.0.37.6.linux.x86_64.tar.gz"
declare -gx TILT_VERSION="0.37.6"
_config_restore "$saved"
}
# ── end of frozen configuration ──
# ── ctrl/mem.sh ──
# How much memory this machine will actually give you before something dies —
# rig's memory tool, and (generated from this file) the standalone rigmini.sh.
#
# There are two numbers and they are rarely the same. `status` reports what the
# machine ADVERTISES and what is quietly capping it. `push` finds what it will
# SURVIVE, by allocating until it stops. `all` does both and weighs the result
# against what this profile's cluster needs.
#
# The gap between them is the whole reason this exists. Under WSL the cap lives
# in .wslconfig; in a container or a managed workspace it is a cgroup limit, and
# there /proc/meminfo reports the HOST's memory while the kernel kills you at a
# fraction of it. A script that only read MemTotal would confidently report 32 GB
# on a box that OOMs at 2.
#
# Runs on native Linux and under WSL. On WSL the memory you see is a VM
# allocation that can be raised, and the commonest failure is raising it without
# restarting — so status compares what .wslconfig says with what actually booted.
#
# Reports and instructs. It never raises a limit, frees anything or installs a
# package. The one write it can make is `backup`, which copies .wslconfig beside
# itself, so that `restore` has something to put back after a hand edit.
#
# Usage:
# mem.sh status what it has, what caps it
# mem.sh push [--to GB] [--to-oom] climb until it stops
# mem.sh all [--budget GB] both, then the verdict
# mem.sh backup | restore .wslconfig, WSL only
set -euo pipefail
cd "$(dirname "$0")"
# (sourced library inlined above)
# ── defaults ───────────────────────────────────────────────────────────────
STEP_MB=0 # per allocation; 0 means scale it to the ceiling. See push().
STEP_EXPLICIT=no # whether --step was given, which turns the scaling off.
TO_MB="" # --to: stop here regardless. Empty means no hard cap.
TO_OOM=no # --to-oom: opt in to running until the kernel intervenes.
BUDGET_GB="" # --budget; empty means what this profile's cluster needs, from rig.
BUDGET_EXPLICIT=no # whether --budget was given, which retires the guess below.
# ── platform ───────────────────────────────────────────────────────────────
# Windows outside WSL — Git Bash, MSYS, Cygwin — looks close enough to work and
# then fails in a pile of confusing ways: no /proc, no docker socket, none of
# the tooling. Detectable, so name it instead.
require_linux() {
case "$(uname -s)" in
MINGW*|MSYS*|CYGWIN*)
cat >&2 <<'EOF'
This has to run inside WSL, not Git Bash / MSYS / Cygwin.
If WSL is not installed yet, from an elevated PowerShell or Command Prompt:
wsl --install
That enables Windows features and needs a reboot, so it is not something this
script will do for you. Afterwards, open the Linux shell it installs and run
this from there.
EOF
exit 1 ;;
esac
# Everything below reads /proc. Without it there is nothing to measure, and
# failing here beats printing a page of empty fields.
if [ ! -r /proc/meminfo ]; then
echo "no readable /proc/meminfo — this needs a Linux kernel." >&2
echo "On macOS or a BSD none of the numbers below exist." >&2
exit 1
fi
}
is_wsl() { grep -qi microsoft /proc/version 2>/dev/null; }
is_container() {
[ -f /.dockerenv ] && return 0
grep -qE '(docker|containerd|kubepods|lxc|podman)' /proc/1/cgroup 2>/dev/null
}
platform() {
if is_wsl; then echo WSL
elif is_container; then echo container
else echo "native linux"
fi
}
# ── reading memory ─────────────────────────────────────────────────────────
mb() { echo $(( $(awk "/^$1:/{print \$2}" /proc/meminfo) / 1024 )); }
# MemAvailable arrived in kernel 3.14. Older kernels — and they turn up on
# corporate images — need the estimate it replaced, which is worse but not wrong.
avail_meminfo_mb() {
if grep -q '^MemAvailable:' /proc/meminfo; then
mb MemAvailable
else
awk '/^(MemFree|Buffers|Cached):/{t+=$2} END{print int(t/1024)}' /proc/meminfo
fi
}
# Where a cgroup records this cgroup's own limit and usage. Set once by
# find_cgroup, because every later reading needs both and hunting for the files
# on each call would be the slow part of the poll loop.
CG_MAX_FILE=""
CG_CUR_FILE=""
CG_VERSION=""
find_cgroup() {
local rel
# Inside a container the cgroup namespace makes the top of the tree BE the
# container's own cgroup, so the unqualified path is already the right one.
# On a host it is the root cgroup, which is never limited — hence the second
# attempt via /proc/self/cgroup, which names the slice this shell is in.
if [ -r /sys/fs/cgroup/memory.max ]; then
CG_VERSION=v2
CG_MAX_FILE=/sys/fs/cgroup/memory.max
CG_CUR_FILE=/sys/fs/cgroup/memory.current
elif [ -r /sys/fs/cgroup/memory/memory.limit_in_bytes ]; then
CG_VERSION=v1
CG_MAX_FILE=/sys/fs/cgroup/memory/memory.limit_in_bytes
CG_CUR_FILE=/sys/fs/cgroup/memory/memory.usage_in_bytes
fi
rel=$(awk -F: '$1=="0"{print $3; exit}' /proc/self/cgroup 2>/dev/null || true)
if [ -n "$rel" ] && [ "$rel" != "/" ] && [ -r "/sys/fs/cgroup${rel}/memory.max" ]; then
CG_VERSION=v2
CG_MAX_FILE="/sys/fs/cgroup${rel}/memory.max"
CG_CUR_FILE="/sys/fs/cgroup${rel}/memory.current"
return 0
fi
rel=$(awk -F: '$2 ~ /(^|,)memory(,|$)/{print $3; exit}' /proc/self/cgroup 2>/dev/null || true)
if [ -n "$rel" ] && [ "$rel" != "/" ] \
&& [ -r "/sys/fs/cgroup/memory${rel}/memory.limit_in_bytes" ]; then
CG_VERSION=v1
CG_MAX_FILE="/sys/fs/cgroup/memory${rel}/memory.limit_in_bytes"
CG_CUR_FILE="/sys/fs/cgroup/memory${rel}/memory.usage_in_bytes"
fi
return 0
}
# The cap in MB, or "" when there is none worth reporting. v2 spells unlimited
# "max"; v1 spells it as a number near 2^63, which is why this compares against
# MemTotal rather than testing for a magic value — a "limit" above the machine's
# own memory is not a limit, however it is written.
cgroup_cap_mb() {
local raw cap
[ -n "$CG_MAX_FILE" ] && [ -r "$CG_MAX_FILE" ] || { echo ""; return 0; }
raw=$(cat "$CG_MAX_FILE" 2>/dev/null || echo max)
[ "$raw" = "max" ] && { echo ""; return 0; }
case "$raw" in ''|*[!0-9]*) echo ""; return 0 ;; esac
cap=$((raw / 1024 / 1024))
[ "$cap" -ge "$(mb MemTotal)" ] && { echo ""; return 0; }
echo "$cap"
}
cgroup_used_mb() {
local raw
[ -n "$CG_CUR_FILE" ] && [ -r "$CG_CUR_FILE" ] || { echo ""; return 0; }
raw=$(cat "$CG_CUR_FILE" 2>/dev/null || echo "")
case "$raw" in ''|*[!0-9]*) echo ""; return 0 ;; esac
echo $((raw / 1024 / 1024))
}
# ulimit -v is a per-process address-space cap. It stops YOU long before the box
# does, and because it is inherited from a login shell it is easy to hit without
# knowing it is set.
ulimit_v_mb() {
local v; v=$(ulimit -v 2>/dev/null || echo unlimited)
[ "$v" = "unlimited" ] && { echo ""; return 0; }
case "$v" in ''|*[!0-9]*) echo ""; return 0 ;; esac
echo $((v / 1024))
}
# The number everything else is about: the lowest of the things that can stop
# you. Printed at the end of `status` and used as the sanity bound in `push`.
effective_ceiling_mb() {
local c; c=$(mb MemTotal)
local cap; cap=$(cgroup_cap_mb)
local ul; ul=$(ulimit_v_mb)
[ -n "$cap" ] && [ "$cap" -lt "$c" ] && c="$cap"
[ -n "$ul" ] && [ "$ul" -lt "$c" ] && c="$ul"
echo "$c"
}
# How much room is left RIGHT NOW, from whichever accounting actually governs.
# In a capped container /proc/meminfo describes the host and is worse than
# useless for this — it would report tens of gigabytes free on a box that is one
# allocation from being killed.
headroom_mb() {
local cap used
cap=$(cgroup_cap_mb)
used=$(cgroup_used_mb)
if [ -n "$cap" ] && [ -n "$used" ]; then
echo $(( cap - used ))
else
avail_meminfo_mb
fi
}
# ── status ─────────────────────────────────────────────────────────────────
# /mnt/c/Users can hold several real accounts — a renamed login leaves the old
# directory behind — so picking the first alphabetically is a coin toss. Ask
# Windows, then fall back to whichever profile actually owns a config.
wslconfig_path() {
local profile winpath found
profile=$(cmd.exe /c "echo %USERPROFILE%" 2>/dev/null | tr -d "\r\n" || true)
case "$profile" in
""|*%*) ;;
*) winpath=$(wslpath -u "$profile" 2>/dev/null || true)
if [ -n "$winpath" ] && [ -d "$winpath" ]; then
echo "$winpath/.wslconfig"; return 0
fi ;;
esac
found=$(ls -d /mnt/c/Users/*/.wslconfig 2>/dev/null | head -1 || true)
[ -n "$found" ] && echo "$found"
return 0
}
hogs() {
echo " holding the most:"
ps -eo rss,comm --sort=-rss 2>/dev/null \
| awk 'NR>1 && NR<=6 {printf " %6.0f MB %s\n", $1/1024, $2}'
return 0
}
status() {
local total avail swap_total swap_free cap ul cur
echo "host"
echo " platform $(platform)"
echo " kernel $(uname -r)"
[ -r /etc/os-release ] && \
echo " distro $(sed -n 's/^PRETTY_NAME="\(.*\)"/\1/p' /etc/os-release)"
echo " cpu $(getconf _NPROCESSORS_ONLN 2>/dev/null || echo '?') online, load $(cut -d' ' -f1-3 /proc/loadavg)"
# ── the caps first, because they decide what the totals below are worth ──
echo
echo "caps"
cap=$(cgroup_cap_mb)
if [ -n "$cap" ]; then
cur=$(cgroup_used_mb)
echo " cgroup ${cap} MB (${CG_VERSION}, ${CG_CUR_FILE##*/} says ${cur:-?} MB used)"
echo " ! /proc/meminfo below describes the HOST, not this cgroup."
echo " $(mb MemTotal) MB total is not yours; ${cap} MB is."
elif [ -n "$CG_VERSION" ]; then
echo " cgroup none (${CG_VERSION} present, no memory limit set)"
else
echo " cgroup no memory controller found"
fi
ul=$(ulimit_v_mb)
if [ -n "$ul" ]; then
echo " ! ulimit -v ${ul} MB — a per-process cap, inherited from your shell"
echo " it stops this process long before the machine runs out"
else
echo " ulimit -v unlimited"
fi
# overcommit_memory=0 is the default heuristic: a large allocation is
# granted on a guess, and the reckoning arrives later as an OOM kill rather
# than as a failed malloc. It is why `push` touches every page it asks for.
local om or_
om=$(cat /proc/sys/vm/overcommit_memory 2>/dev/null || echo '?')
or_=$(cat /proc/sys/vm/overcommit_ratio 2>/dev/null || echo '?')
case "$om" in
0) echo " overcommit 0 heuristic — allocations are granted on a guess," ;;
1) echo " overcommit 1 always — every allocation succeeds; the OOM killer is the only limit," ;;
2) echo " overcommit 2 strict (ratio ${or_}%) — allocation fails honestly instead of killing later," ;;
*) echo " overcommit ${om}" ;;
esac
[ "$om" != "?" ] && echo " so RSS is the number to trust, not what a process asked for"
# ── what it says it has ──
total=$(mb MemTotal); avail=$(avail_meminfo_mb)
swap_total=$(mb SwapTotal); swap_free=$(mb SwapFree)
echo
echo "memory"
echo " total ${total} MB"
echo " available ${avail} MB"
echo " swap ${swap_total} MB ($(( swap_total - swap_free )) MB used)"
if [ "$swap_total" -eq 0 ]; then
echo " - no swap: this box has no cushion. It goes from fine to OOM-killed"
echo " with nothing in between, which is the abrupt failure you get in a VM."
fi
# postgres puts its shared buffers in /dev/shm. Docker's default is 64 MB,
# and the resulting failure names neither shm nor the size.
if [ -d /dev/shm ]; then
local shm; shm=$(df -Pm /dev/shm 2>/dev/null | awk 'NR==2{print $2}')
if [ -n "$shm" ]; then
if [ "$shm" -le 64 ]; then
echo " ! /dev/shm ${shm} MB — postgres puts shared memory here and 64 MB"
echo " is docker's default. Raise it with --shm-size when postgres fails."
else
echo " /dev/shm ${shm} MB"
fi
fi
fi
echo
echo "disk"
local d
for d in / /tmp /var/lib/docker; do
[ -d "$d" ] || continue
df -Pm "$d" 2>/dev/null | awk -v p="$d" 'NR==2{printf " %-12s %s MB free of %s MB\n", p, $4, $2}'
done
# kind and Tilt both watch large trees, and the failure mode is silent:
# they simply stop noticing file changes. Cheap to report while we are here.
local w i
w=$(cat /proc/sys/fs/inotify/max_user_watches 2>/dev/null || echo 0)
i=$(cat /proc/sys/fs/inotify/max_user_instances 2>/dev/null || echo 0)
echo
echo "tooling"
echo " inotify watches=$w instances=$i"
if [ "$w" -lt 524288 ] || [ "$i" -lt 512 ]; then
echo " ! low — anything watching files will silently stop seeing changes"
fi
if ! command -v docker >/dev/null 2>&1; then
if [ -S /var/run/docker.sock ]; then
echo " docker socket present, no cli"
else
echo " docker not installed"
fi
elif docker info >/dev/null 2>&1; then
local n
n=$(docker ps -q 2>/dev/null | wc -l)
echo " docker $(docker version --format '{{.Server.Version}}' 2>/dev/null), ${n} container(s) running"
else
echo " ! docker cli present but the daemon is unreachable"
fi
# WSL keeps its cap on the Windows side, in a file this shell can read but
# not usefully apply — the change costs a full VM restart. Report it, and
# report the commonest mistake, which is editing it and not restarting.
if is_wsl; then
local cfg conf conf_mb n
cfg=$(wslconfig_path)
echo
echo "wsl"
if [ -z "$cfg" ]; then
echo " ! cannot tell which Windows profile owns .wslconfig"
else
echo " config $cfg"
conf=$(configured_memory "$cfg")
if [ -n "$conf" ]; then
conf_mb=$(to_mb "$conf")
echo " configured $conf (${conf_mb} MB), booted ${total} MB"
# The VM reports a little less than allocated; 15% covers the
# kernel without calling every healthy machine a mismatch.
if [ -n "$conf_mb" ] && [ "$total" -lt $(( conf_mb * 85 / 100 )) ]; then
echo " ! configured ${conf_mb} MB but booted ${total} MB — not applied yet."
echo " From a WINDOWS terminal: wsl --shutdown then start the distro again."
fi
else
echo " configured no memory= set (WSL defaults to 50% of host RAM, or 8 GB,"
echo " whichever is less). To raise it, add on the Windows side:"
echo " [wsl2]"
echo " memory=8GB"
echo " then from a WINDOWS terminal: wsl --shutdown"
fi
n=$(ls "$cfg".*.bak 2>/dev/null | wc -l)
if [ "$n" -gt 0 ]; then
echo " backups $n (newest: $(ls -t "$cfg".*.bak 2>/dev/null | head -1))"
fi
fi
else
echo
echo " - native linux: no VM allocation to raise. If memory is tight the levers"
echo " are freeing something or adding swap."
fi
echo
echo "effective ceiling $(effective_ceiling_mb) MB"
echo " the lowest of MemTotal, the cgroup cap and ulimit -v. What the box"
echo " claims. 'push' measures what it will actually hand over."
[ "$avail" -lt $(( total / 5 )) ] && { echo; hogs; }
return 0
}
# ── .wslconfig ─────────────────────────────────────────────────────────────
require_wsl() {
if ! is_wsl; then
echo "$1 acts on .wslconfig, which only exists under WSL." >&2
echo "This is native Linux — there is no VM allocation to save or roll back." >&2
echo "Use 'status' to see what the machine actually has." >&2
exit 1
fi
}
# backup and restore act on the file, so unlike status they must not guess.
wslconfig_required() {
local cfg; cfg=$(wslconfig_required)
if [ -z "$cfg" ]; then
echo "cannot tell which Windows profile owns .wslconfig. Candidates:" >&2
ls -d /mnt/c/Users/*/ 2>/dev/null \
| grep -viE "/(All Users|Default|Default User|Public)/$" | sed "s/^/ /" >&2
exit 1
fi
echo "$cfg"
}
configured_memory() {
[ -r "$1" ] || { echo ""; return; }
sed -n 's/^[[:space:]]*memory[[:space:]]*=[[:space:]]*//p' "$1" | tail -1 | tr -d '[:space:]'
}
# "9GB" / "8192MB" / "9G" -> MB, so it can be compared with /proc/meminfo.
to_mb() {
local v="${1^^}" n
n=$(echo "$v" | tr -dc '0-9')
[ -n "$n" ] || { echo ""; return; }
case "$v" in
*GB|*G) echo $(( n * 1024 )) ;;
*MB|*M) echo "$n" ;;
*) echo $(( n / 1024 / 1024 )) ;;
esac
}
backup() {
require_wsl backup
local cfg dest
cfg=$(wslconfig_required)
[ -r "$cfg" ] || { echo "nothing to back up: $cfg does not exist" >&2; exit 1; }
# Timestamped and never overwritten: a backup that can destroy itself on a
# second run is not a backup.
dest="${cfg}.$(date +%Y%m%d-%H%M%S).bak"
cp "$cfg" "$dest"
echo "backed up $dest"
echo
echo "Edit $cfg by hand, then from a WINDOWS terminal: wsl --shutdown"
}
restore() {
require_wsl restore
local cfg newest count
cfg=$(wslconfig_required)
newest=$(ls -t "$cfg".*.bak 2>/dev/null | head -1 || true)
[ -n "$newest" ] || { echo "no backups found beside $cfg" >&2; exit 1; }
echo "restoring $newest"
echo " -> $cfg"
echo
# Newest is the right default — undo the last edit — but if you backed up
# *after* editing, the state you want is older. Show the rest so a no-op
# restore is obviously a no-op rather than a mystery.
count=$(ls "$cfg".*.bak 2>/dev/null | wc -l)
if [ "$count" -gt 1 ]; then
echo "$count backups exist, newest first:"
ls -t "$cfg".*.bak | sed 's/^/ /'
echo " (restoring the newest; copy another by hand to pick an older one)"
echo
fi
if [ -r "$cfg" ]; then
echo "what changes:"
if diff "$cfg" "$newest" > /tmp/mem.diff 2>&1 && [ ! -s /tmp/mem.diff ]; then
echo " nothing — that backup is identical to the current config"
else
sed 's/^/ /' /tmp/mem.diff
fi
rm -f /tmp/mem.diff
echo
fi
printf "proceed? [y/N] "
read -r reply
case "$reply" in
y|Y|yes|Yes) ;;
*) echo "left alone"; return 0 ;;
esac
cp "$newest" "$cfg"
echo "restored. From a WINDOWS terminal: wsl --shutdown"
}
# ── push ───────────────────────────────────────────────────────────────────
STATE=""
CHILD=""
cleanup() {
if [ -n "$CHILD" ] && kill -0 "$CHILD" 2>/dev/null; then
kill -KILL "$CHILD" 2>/dev/null || true
wait "$CHILD" 2>/dev/null || true
fi
[ -n "$STATE" ] && rm -f "$STATE"
return 0
}
# The child allocates and stops itself; the parent only watches. That split is
# the point: under --to-oom the allocating process is expected to be killed, and
# something has to survive to say how far it got.
allocator() {
# Raise our own OOM score to the maximum so the kernel picks THIS process
# first. Raising needs no privilege (only lowering does). Without it, the
# kernel is free to choose your shell, your ssh session or dockerd — on a
# box you are still using, that is not an acceptable coin toss.
echo 1000 > "/proc/$BASHPID/oom_score_adj" 2>/dev/null || true
local arr=() held=0 i=0 rss swapped avail first_swap=0
local bytes=$((STEP_MB * 1024 * 1024))
local swap_used_start
swap_used_start=$(( $(mb SwapTotal) - $(mb SwapFree) ))
while :; do
# Written STRAIGHT INTO the array element. The obvious spelling —
# build one chunk and `arr+=("$chunk")` — costs three copies per step,
# not one: the template stays resident, expanding "$chunk" makes a
# temporary word, and the append makes the element. A 128 MB step then
# needs 384 MB transiently, and on a small box it is killed on the
# first append while reporting a third of the true ceiling.
#
# printf -v into a subscript also means every page is written, so it is
# resident rather than merely promised — the only kind of allocation
# that measures anything under heuristic overcommit.
printf -v "arr[$i]" '%*s' "$bytes" ''
i=$((i + 1)); held=$((held + STEP_MB))
rss=$(awk '/^VmRSS:/{print int($2/1024)}' "/proc/$BASHPID/status" 2>/dev/null || echo 0)
avail=$(headroom_mb)
swapped=$(( $(mb SwapTotal) - $(mb SwapFree) - swap_used_start ))
[ "$swapped" -lt 0 ] && swapped=0
printf '%8s MB held rss %7s MB headroom %7s MB swap +%s MB\n' \
"$held" "$rss" "$avail" "$swapped"
printf '%s %s %s %s\n' "$held" "$rss" "$avail" "$swapped" >> "$STATE"
# Worth calling out separately from the ceiling: this is where the box
# stops being fast and starts being unusable, which for a scheduler is
# a different and earlier problem than being killed.
if [ "$swapped" -gt 0 ] && [ "$first_swap" -eq 0 ]; then
first_swap=$held
echo " - first swap page at ${held} MB — past here it works but crawls"
echo "swapat $held" >> "$STATE"
fi
if [ -n "$TO_MB" ] && [ "$held" -ge "$TO_MB" ]; then
echo "stop reached-the-cap" >> "$STATE"; return 0
fi
if [ "$TO_OOM" = no ] && [ "$avail" -lt "$FLOOR_MB" ]; then
echo "stop floor" >> "$STATE"; return 0
fi
done
}
push() {
local total ceiling rc=0 last held rss swapat stop
total=$(mb MemTotal)
ceiling=$(effective_ceiling_mb)
# A step is worth about a sixty-fourth of the ceiling: enough resolution to
# find the edge, few enough lines to read, and small enough that the
# transient cost of one allocation never dominates a small box. A fixed
# size cannot do all three — 128 MB is fine on 16 GB and absurd on 512 MB.
if [ "$STEP_EXPLICIT" = no ]; then
STEP_MB=$(( ceiling / 64 ))
[ "$STEP_MB" -lt 4 ] && STEP_MB=4
[ "$STEP_MB" -gt 256 ] && STEP_MB=256
fi
# Stop with a cushion rather than riding it to the kill. How big a cushion
# depends on what it is protecting. Under a cgroup cap, running out kills
# only this container's own processes, so it need cover no more than the
# shell that prints the result — and a 512 MB cushion on a 1 GB box would
# halve the answer. On a host there is everything else to protect, and the
# OOM killer does not promise to pick the process that caused the problem.
if [ -n "$(cgroup_cap_mb)" ]; then FLOOR_MB=64; else FLOOR_MB=512; fi
[ $(( ceiling / 20 )) -gt "$FLOOR_MB" ] && FLOOR_MB=$(( ceiling / 20 ))
STATE=$(mktemp "${TMPDIR:-/tmp}/rigmini.XXXXXX")
trap cleanup EXIT
# INT kills the child and lets the summary below print anyway, so an
# impatient Ctrl-C still tells you how far it got — and, more importantly,
# still gives the memory back.
trap 'echo; echo " interrupted"; echo "stop interrupted" >> "$STATE"; [ -n "$CHILD" ] && kill -KILL "$CHILD" 2>/dev/null || true' INT
echo "push"
echo " step ${STEP_MB} MB per allocation, every page touched"
echo " ceiling ${ceiling} MB claimed"
if [ -n "$TO_MB" ]; then
echo " stopping at ${TO_MB} MB (--to)"
elif [ "$TO_OOM" = yes ]; then
echo " ! stopping only when the kernel stops it (--to-oom)"
echo " the allocating child is marked as the preferred OOM victim,"
echo " but nothing about an OOM kill is entirely polite. Not on a box"
echo " running anything you mind losing."
else
echo " stopping when headroom drops below ${FLOOR_MB} MB"
fi
echo
allocator &
CHILD=$!
wait "$CHILD" || rc=$?
CHILD=""
trap - INT
last=$(grep -E '^[0-9]' "$STATE" 2>/dev/null | tail -1 || true)
held=$(echo "$last" | awk '{print $1}')
rss=$(echo "$last" | awk '{print $2}')
swapat=$(awk '/^swapat/{print $2}' "$STATE" 2>/dev/null | head -1 || true)
stop=$(awk '/^stop/{print $2}' "$STATE" 2>/dev/null | head -1 || true)
echo
if [ -z "$held" ]; then
echo " ! nothing was allocated. Even one ${STEP_MB} MB chunk failed —"
echo " try a smaller --step, or check ulimit -v in 'status'."
return 1
fi
echo " reached ${rss:-$held} MB resident"
[ -n "$swapat" ] && echo " swapping from ${swapat} MB"
case "$stop" in
reached-the-cap)
echo " outcome stopped at the --to cap, not at a limit."
echo " The box held ${TO_MB} MB without complaint; there is more." ;;
floor)
echo " outcome stopped with a cushion intact, by choice."
echo " The real ceiling is higher — --to-oom finds it, at the"
echo " cost of an actual OOM kill." ;;
interrupted)
echo " outcome interrupted at ${rss:-$held} MB — where you stopped it,"
echo " not where the box did." ;;
*)
# No stop line means the child did not decide to stop: it was ended.
if [ "$rc" -ge 128 ]; then
echo " outcome the child was killed (signal $((rc - 128))) at ${rss:-$held} MB."
elif [ "$rc" -ne 0 ]; then
echo " outcome the allocation failed at ${rss:-$held} MB (exit ${rc})."
echo " bash could not get the next chunk — an honest malloc"
echo " failure rather than a kill. That is the strict-overcommit"
echo " or ulimit path."
else
echo " outcome ended at ${rss:-$held} MB."
fi
local ev
ev=$(dmesg 2>/dev/null | tail -80 | grep -iE 'oom-kill|killed process' | tail -1 || true)
if [ -n "$ev" ]; then
echo " kernel ${ev#*] }"
else
echo " - dmesg is unreadable here (dmesg_restrict, or no privilege),"
echo " so the kill cannot be confirmed from this side. The number stands."
fi ;;
esac
# The gap between the claim and the measurement is the finding — but only
# when the BOX chose where to stop. An empty $stop means the child was ended
# rather than deciding to end; anything else (--to, the floor) is a stop we
# asked for, and flagging those as short of the ceiling would put a warning
# on every deliberately small run.
local got="${rss:-$held}"
echo
if [ -z "$stop" ] && [ "$got" -lt $(( ceiling * 70 / 100 )) ]; then
echo " ! claimed ${ceiling} MB, gave up ${got} MB — under 70% of it."
echo " Something is taking the difference. 'status' names the candidates:"
echo " a cgroup cap, ulimit -v, or memory already resident."
fi
return 0
}
# ── all ────────────────────────────────────────────────────────────────────
all() {
status
echo
echo "────────────────────────────────────────────────────────────"
echo
push
local got budget_mb ceiling
load_config
if [ -n "$BUDGET_GB" ]; then
budget_mb=$(( BUDGET_GB * 1024 ))
else
budget_mb=$(( NODES * NODE_MB ))
fi
ceiling=$(effective_ceiling_mb)
got=$(grep -E '^[0-9]' "$STATE" 2>/dev/null | tail -1 | awk '{print $2}' || true)
[ -n "$got" ] || got=0
echo
echo "verdict"
if [ -n "$BUDGET_GB" ]; then
echo " budget ${budget_mb} MB (--budget)"
else
# rig's own figure for this profile: nodes times what one node costs.
# Addons carry no memory figure in rig yet, so this is the cluster alone
# and whatever you deploy comes on top. --budget once you know that too.
echo " budget ${budget_mb} MB — profile ${PROFILE_NAME}: ${NODES} node(s) x ${NODE_MB} MB,"
echo " the cluster alone; your workload comes on top (--budget GB)"
fi
echo " measured ${got} MB handed over"
if [ "$got" -ge "$budget_mb" ]; then
echo " fits, with $(( got - budget_mb )) MB spare."
if [ "$got" -lt $(( budget_mb * 130 / 100 )) ]; then
echo " - under 30% spare is thin once a workload runs on top: memory use"
echo " is spiky, and the spikes are what get killed."
fi
else
echo " ! short by $(( budget_mb - got )) MB."
if [ "$ceiling" -ge "$budget_mb" ]; then
echo " The box CLAIMS enough (${ceiling} MB) but did not deliver it."
echo " Free something, or read the caps section again."
else
echo " The box does not have it to give. A bigger machine, or a profile"
echo " with fewer nodes."
fi
fi
return 0
}
# ── main ───────────────────────────────────────────────────────────────────
parse_flags() {
while [ $# -gt 0 ]; do
case "$1" in
--to) TO_MB=$(( ${2:?--to needs a value in GB} * 1024 )); shift 2 ;;
--to-mb) TO_MB="${2:?--to-mb needs a value in MB}"; shift 2 ;;
--step) STEP_MB="${2:?--step needs a value in MB}"; STEP_EXPLICIT=yes; shift 2 ;;
--to-oom) TO_OOM=yes; shift ;;
--budget) BUDGET_GB="${2:?--budget needs a value in GB}"; BUDGET_EXPLICIT=yes; shift 2 ;;
*) echo "unknown argument: $1" >&2; exit 1 ;;
esac
done
if [ "$TO_OOM" = yes ] && [ -n "$TO_MB" ]; then
echo "--to and --to-oom contradict each other: one stops early, the other" >&2
echo "refuses to stop at all. Pick one." >&2
exit 1
fi
return 0
}
require_linux
find_cgroup
cmd="${1:-status}"
[ $# -gt 0 ] && shift
case "$cmd" in
status) parse_flags "$@"; status ;;
push) parse_flags "$@"; push ;;
all) parse_flags "$@"; all ;;
backup) backup ;;
restore) restore ;;
*) echo "usage: $0 [status|push|all|backup|restore]" >&2
echo " push [--to GB] [--to-mb MB] [--step MB] [--to-oom]" >&2
echo " all [--budget GB]" >&2
exit 1 ;;
esac

0
rig/standalone/client/Makefile → rig/standalone/default/Makefile
View File

20
rig/standalone/minimal/rigdeps.sh → rig/standalone/default/rigdeps.sh
View File

@@ -1,7 +1,7 @@
#!/usr/bin/env bash
# GENERATED by make standalone — do not edit
#
# rigdeps.sh for profile 'minimal', flattened from:
# rigdeps.sh for profile 'default', flattened from:
# ctrl/deps.sh
# ctrl/lib/config.sh
# Edit those and run `make standalone`. Changes made here are lost, and
@@ -39,13 +39,13 @@ render_kind_config ()
sed -e "s|\${CLUSTER}|${CLUSTER}|g" -e "s|\${NODE_IMAGE}|${NODE_IMAGE}|g" -e "s|\${HTTP_PORT}|${HTTP_PORT}|g" -e "s|\${HOST_WORKDIR}|${host_workdir}|g" "$KIND_CONFIG_PATH"
}
# ── configuration, frozen for profile 'minimal' ──
# ── configuration, frozen for profile 'default' ──
load_config() {
local k saved=""
for k in $CONFIG_OVERRIDABLE; do
if [ -n "${!k+x}" ]; then saved+="$k=$(printf '%q' "${!k}")"$'\n'; fi
done
declare -gx ADDONS=""
declare -g ADDONS=""
declare -gx AIRFLOW_IMAGE="apache/airflow:2.10.4"
declare -g AUDIT="off"
declare -gx CERT_MANAGER_VERSION="v1.21.1"
@@ -56,15 +56,15 @@ load_config() {
declare -gx CTLPTL_SHA256="c63a1ec28e60bc3faf6becb76f53355c5cf5e0143dafdd27ad85db5584fa6b1e"
declare -gx CTLPTL_URL="https://github.com/tilt-dev/ctlptl/releases/download/v0.9.4/ctlptl.0.9.4.linux.x86_64.tar.gz"
declare -gx CTLPTL_VERSION="0.9.4"
declare -gx DNS_MODE="hosts"
declare -g DNS_MODE="hosts"
declare -g HTTPS_PORT="20311"
declare -g HTTP_PORT="20310"
declare -gx INGRESS_MODE="hostport"
declare -g INGRESS_MODE="hostport"
declare -gx JQ_SHA256="b1c22172dd303f3be49e935aa56aa48a8b7a46e0bc838b4997d3bb451495870f"
declare -gx JQ_URL="https://github.com/jqlang/jq/releases/download/jq-1.8.2/jq-linux-amd64"
declare -gx JQ_VERSION="1.8.2"
declare -gx K8S_VERSION="v1_36"
declare -gx KIND_CONFIG="kind-config.yaml.tpl"
declare -g K8S_VERSION="v1_36"
declare -g KIND_CONFIG="kind-config.yaml.tpl"
declare -g KIND_CONFIG_PATH="./k8s/kind-config.yaml.tpl"
declare -g KIND_CONFIG_SHOWN="ctrl/k8s/kind-config.yaml.tpl"
declare -gx KIND_SHA256="50030de23cf40a18505f20426f6a8506bedf13c6e509244bd1fa9463721b0f54"
@@ -85,11 +85,11 @@ load_config() {
declare -gx NODE_IMAGE_v1_36="kindest/node:v1.36.1@sha256:3489c7674813ba5d8b1a9977baea8a6e553784dab7b84759d1014dbd78f7ebd5"
declare -g NODE_MB="800"
declare -gx POSTGRES_IMAGE="postgres:16-alpine"
declare -gx PROFILE="minimal"
declare -gx PROFILE_NAME="minimal"
declare -gx PROFILE="default"
declare -g PROFILE_NAME="default"
declare -gx REDIS_IMAGE="redis:7-alpine"
declare -gx REGISTRY_IMAGE="registry:2"
declare -gx REGISTRY_MODE="local"
declare -g REGISTRY_MODE="local"
declare -g REGISTRY_PORT="20313"
declare -gx STUB_IMAGE="python:3.12-slim"
declare -g TILT_PORT="20312"

20
rig/standalone/minimal/rigmini.sh → rig/standalone/default/rigmini.sh
View File

@@ -1,7 +1,7 @@
#!/usr/bin/env bash
# GENERATED by make standalone — do not edit
#
# rigmini.sh for profile 'minimal', flattened from:
# rigmini.sh for profile 'default', flattened from:
# ctrl/mem.sh
# ctrl/lib/config.sh
# Edit those and run `make standalone`. Changes made here are lost, and
@@ -39,13 +39,13 @@ render_kind_config ()
sed -e "s|\${CLUSTER}|${CLUSTER}|g" -e "s|\${NODE_IMAGE}|${NODE_IMAGE}|g" -e "s|\${HTTP_PORT}|${HTTP_PORT}|g" -e "s|\${HOST_WORKDIR}|${host_workdir}|g" "$KIND_CONFIG_PATH"
}
# ── configuration, frozen for profile 'minimal' ──
# ── configuration, frozen for profile 'default' ──
load_config() {
local k saved=""
for k in $CONFIG_OVERRIDABLE; do
if [ -n "${!k+x}" ]; then saved+="$k=$(printf '%q' "${!k}")"$'\n'; fi
done
declare -gx ADDONS=""
declare -g ADDONS=""
declare -gx AIRFLOW_IMAGE="apache/airflow:2.10.4"
declare -g AUDIT="off"
declare -gx CERT_MANAGER_VERSION="v1.21.1"
@@ -56,15 +56,15 @@ load_config() {
declare -gx CTLPTL_SHA256="c63a1ec28e60bc3faf6becb76f53355c5cf5e0143dafdd27ad85db5584fa6b1e"
declare -gx CTLPTL_URL="https://github.com/tilt-dev/ctlptl/releases/download/v0.9.4/ctlptl.0.9.4.linux.x86_64.tar.gz"
declare -gx CTLPTL_VERSION="0.9.4"
declare -gx DNS_MODE="hosts"
declare -g DNS_MODE="hosts"
declare -g HTTPS_PORT="20311"
declare -g HTTP_PORT="20310"
declare -gx INGRESS_MODE="hostport"
declare -g INGRESS_MODE="hostport"
declare -gx JQ_SHA256="b1c22172dd303f3be49e935aa56aa48a8b7a46e0bc838b4997d3bb451495870f"
declare -gx JQ_URL="https://github.com/jqlang/jq/releases/download/jq-1.8.2/jq-linux-amd64"
declare -gx JQ_VERSION="1.8.2"
declare -gx K8S_VERSION="v1_36"
declare -gx KIND_CONFIG="kind-config.yaml.tpl"
declare -g K8S_VERSION="v1_36"
declare -g KIND_CONFIG="kind-config.yaml.tpl"
declare -g KIND_CONFIG_PATH="./k8s/kind-config.yaml.tpl"
declare -g KIND_CONFIG_SHOWN="ctrl/k8s/kind-config.yaml.tpl"
declare -gx KIND_SHA256="50030de23cf40a18505f20426f6a8506bedf13c6e509244bd1fa9463721b0f54"
@@ -85,11 +85,11 @@ load_config() {
declare -gx NODE_IMAGE_v1_36="kindest/node:v1.36.1@sha256:3489c7674813ba5d8b1a9977baea8a6e553784dab7b84759d1014dbd78f7ebd5"
declare -g NODE_MB="800"
declare -gx POSTGRES_IMAGE="postgres:16-alpine"
declare -gx PROFILE="minimal"
declare -gx PROFILE_NAME="minimal"
declare -gx PROFILE="default"
declare -g PROFILE_NAME="default"
declare -gx REDIS_IMAGE="redis:7-alpine"
declare -gx REGISTRY_IMAGE="registry:2"
declare -gx REGISTRY_MODE="local"
declare -g REGISTRY_MODE="local"
declare -g REGISTRY_PORT="20313"
declare -gx STUB_IMAGE="python:3.12-slim"
declare -g TILT_PORT="20312"

23
rig/standalone/minimal/Makefile
View File

@@ -1,23 +0,0 @@
# GENERATED by make standalone — do not edit
#
# Shorthand for the scripts beside it; they run without it. Every target
# calls a verb its script accepts — read from that script's own dispatch.
HERE := $(dir $(abspath $(lastword $(MAKEFILE_LIST))))
ARGS := $(wordlist 2,$(words $(MAKECMDGOALS)),$(MAKECMDGOALS))
ifneq ($(ARGS),)
$(eval $(ARGS):;@:)
.PHONY: $(ARGS)
endif
.DEFAULT_GOAL := help
.PHONY: help deps mem
help: ## list targets
@grep -hE '^[a-z][a-z-]*:.*?##' $(MAKEFILE_LIST) | sed 's/:.*##/\t/' | expand -t16
deps: ## rigdeps.sh [detect|list|verify|fetch|install] (default detect)
bash $(HERE)rigdeps.sh $(or $(ARGS),detect)
mem: ## rigmini.sh [status|push|all|backup|restore] (default status)
bash $(HERE)rigmini.sh $(or $(ARGS),status)

23
rig/standalone/offline/Makefile
View File

@@ -1,23 +0,0 @@
# GENERATED by make standalone — do not edit
#
# Shorthand for the scripts beside it; they run without it. Every target
# calls a verb its script accepts — read from that script's own dispatch.
HERE := $(dir $(abspath $(lastword $(MAKEFILE_LIST))))
ARGS := $(wordlist 2,$(words $(MAKECMDGOALS)),$(MAKECMDGOALS))
ifneq ($(ARGS),)
$(eval $(ARGS):;@:)
.PHONY: $(ARGS)
endif
.DEFAULT_GOAL := help
.PHONY: help deps mem
help: ## list targets
@grep -hE '^[a-z][a-z-]*:.*?##' $(MAKEFILE_LIST) | sed 's/:.*##/\t/' | expand -t16
deps: ## rigdeps.sh [detect|list|verify|fetch|install] (default detect)
bash $(HERE)rigdeps.sh $(or $(ARGS),detect)
mem: ## rigmini.sh [status|push|all|backup|restore] (default status)
bash $(HERE)rigmini.sh $(or $(ARGS),status)

959
rig/standalone/offline/rigdeps.sh
View File

@@ -1,959 +0,0 @@
#!/usr/bin/env bash
# GENERATED by make standalone — do not edit
#
# rigdeps.sh for profile 'offline', flattened from:
# ctrl/deps.sh
# ctrl/lib/config.sh
# Edit those and run `make standalone`. Changes made here are lost, and
# `make selftest` fails while this file differs from what rig generates.
# ── from the libraries ──
declare -- CONFIG_OVERRIDABLE=$'PROFILE CLUSTER K8S_VERSION KIND_CONFIG ADDONS\n REGISTRY_MODE INGRESS_MODE DNS_MODE TILT_PORT\n SOURCE ARCH DEPS_SOURCE HTTP_PORT HTTPS_PORT\n REGISTRY_PORT MANIFESTS_DIR'
_config_restore ()
{
local line;
while IFS= read -r line; do
if [ -n "$line" ]; then
eval "export $line";
fi;
done <<< "$1";
return 0
}
default_cluster_name ()
{
local n;
n=$(basename "$(cd .. && pwd)");
n=$(echo "$n" | tr '[:upper:]' '[:lower:]' | tr -c 'a-z0-9-' '-');
n=$(echo "$n" | sed 's/^-*//; s/-*$//');
echo "${n:-rig}"
}
derive_port_base ()
{
local h;
h=$(printf '%s' "$1" | cksum | awk '{print $1}');
echo $((20000 + (h % 200) * 10))
}
render_kind_config ()
{
local host_workdir="${HOST_WORKDIR:-$(cd .. && pwd)}";
sed -e "s|\${CLUSTER}|${CLUSTER}|g" -e "s|\${NODE_IMAGE}|${NODE_IMAGE}|g" -e "s|\${HTTP_PORT}|${HTTP_PORT}|g" -e "s|\${HOST_WORKDIR}|${host_workdir}|g" "$KIND_CONFIG_PATH"
}
# ── configuration, frozen for profile 'offline' ──
load_config() {
local k saved=""
for k in $CONFIG_OVERRIDABLE; do
if [ -n "${!k+x}" ]; then saved+="$k=$(printf '%q' "${!k}")"$'\n'; fi
done
declare -gx ADDONS="metallb"
declare -gx AIRFLOW_IMAGE="apache/airflow:2.10.4"
declare -g AUDIT="on"
declare -gx CERT_MANAGER_VERSION="v1.21.1"
declare -g CLUSTER="rig"
declare -gx COMPOSE_SHA256="db1889184726840f75c4f9c001048430d4f25b3be3cb084d3ddd762bc0aed576"
declare -gx COMPOSE_URL="https://github.com/docker/compose/releases/download/v5.5.1/docker-compose-linux-x86_64"
declare -gx COMPOSE_VERSION="5.5.1"
declare -gx CTLPTL_SHA256="c63a1ec28e60bc3faf6becb76f53355c5cf5e0143dafdd27ad85db5584fa6b1e"
declare -gx CTLPTL_URL="https://github.com/tilt-dev/ctlptl/releases/download/v0.9.4/ctlptl.0.9.4.linux.x86_64.tar.gz"
declare -gx CTLPTL_VERSION="0.9.4"
declare -gx DNS_MODE="hosts"
declare -g HTTPS_PORT="20311"
declare -g HTTP_PORT="20310"
declare -gx INGRESS_MODE="hostport"
declare -gx JQ_SHA256="b1c22172dd303f3be49e935aa56aa48a8b7a46e0bc838b4997d3bb451495870f"
declare -gx JQ_URL="https://github.com/jqlang/jq/releases/download/jq-1.8.2/jq-linux-amd64"
declare -gx JQ_VERSION="1.8.2"
declare -gx K8S_VERSION="v1_36"
declare -gx KIND_CONFIG="kind-config.audit.yaml.tpl"
declare -g KIND_CONFIG_PATH="./k8s/kind-config.audit.yaml.tpl"
declare -g KIND_CONFIG_SHOWN="ctrl/k8s/kind-config.audit.yaml.tpl"
declare -gx KIND_SHA256="50030de23cf40a18505f20426f6a8506bedf13c6e509244bd1fa9463721b0f54"
declare -gx KIND_URL="https://github.com/kubernetes-sigs/kind/releases/download/v0.32.0/kind-linux-amd64"
declare -gx KIND_VERSION="v0.32.0"
declare -g KUBECONTEXT="kind-rig"
declare -gx KUBECTL_SHA256="ebbd080e7c2e275093b55915722043257eb24004363e20acb3c4d71919f88336"
declare -gx KUBECTL_URL="https://dl.k8s.io/release/v1.36.3/bin/linux/amd64/kubectl"
declare -gx KUBECTL_VERSION="v1.36.3"
declare -g MANIFESTS_DIR="ctrl/k8s/overlays/dev"
declare -gx METALLB_VERSION="v0.16.0"
declare -gx METRICS_SERVER_VERSION="v0.9.0"
declare -g NODES="1"
declare -g NODE_IMAGE="kindest/node:v1.36.1@sha256:3489c7674813ba5d8b1a9977baea8a6e553784dab7b84759d1014dbd78f7ebd5"
declare -gx NODE_IMAGE_v1_33="kindest/node:v1.33.12@sha256:3f5c8443c620245e4d355cfe09e96a91ead32ceaa569d3f1ca9edf0cb2fe2ff4"
declare -gx NODE_IMAGE_v1_34="kindest/node:v1.34.8@sha256:02722c2dedddcfc00febf5d27fbeb9b7b2c14294c82109ff4a85d89ac9ba3256"
declare -gx NODE_IMAGE_v1_35="kindest/node:v1.35.5@sha256:ce977ae6d65918d0b58a5f8b5e940429c2ce42fa3a5619ec2bbc60b949c0ac95"
declare -gx NODE_IMAGE_v1_36="kindest/node:v1.36.1@sha256:3489c7674813ba5d8b1a9977baea8a6e553784dab7b84759d1014dbd78f7ebd5"
declare -g NODE_MB="800"
declare -gx POSTGRES_IMAGE="postgres:16-alpine"
declare -gx PROFILE="offline"
declare -gx PROFILE_NAME="offline"
declare -gx REDIS_IMAGE="redis:7-alpine"
declare -gx REGISTRY_IMAGE="registry:2"
declare -gx REGISTRY_MODE="local"
declare -g REGISTRY_PORT="20313"
declare -gx STUB_IMAGE="python:3.12-slim"
declare -g TILT_PORT="20312"
declare -gx TILT_SHA256="e9672b8a18d43501f35dcfe98465969a7db0e436b36cf0c50c7e6f8d40de5fe6"
declare -gx TILT_URL="https://github.com/tilt-dev/tilt/releases/download/v0.37.6/tilt.0.37.6.linux.x86_64.tar.gz"
declare -gx TILT_VERSION="0.37.6"
_config_restore "$saved"
}
# ── end of frozen configuration ──
# ── ctrl/deps.sh ──
# Toolchain installer: detect the host, install a pinned toolchain onto it, then
# report what it could not do.
#
# It never runs the cluster, never uses sudo or apt, and writes only into
# $OUT_BIN (default ~/.local/bin). Everything that would touch the host proper —
# systemd, inotify limits, .wslconfig, docker group — is REPORTED for a human to
# decide on, never performed. That is what makes it safe to run on a machine that
# already has a working setup.
#
# Usage (normally via `make deps`, or directly):
# deps.sh detect # report host facts only, change nothing
# deps.sh list # the pinned versions
# deps.sh verify [core|dev] # run what is installed and see if it works
# deps.sh fetch [core|dev] [--to DIR] # download + verify into DIR
# deps.sh install [core|dev] # detect, fetch, install, report
#
# Tiers: 'core' is kubectl + jq (talk to a cluster); 'dev' adds kind and tilt
# Default is dev.
#
# Runs both inside the installer container and bare on a host. Inside the
# container, host files are read through $HOST_ROOT (mount / as :ro); bare, it
# falls back to /.
set -euo pipefail
# Keep the caller's cwd so a relative --to resolves where the user expects,
# not against ctrl/ once we've moved.
INVOKED_FROM="$PWD"
cd "$(dirname "$0")"
# Pins arrive through load_config like every other setting, not by sourcing
# versions.env here. That is what lets `make standalone` freeze them into a
# one-file installer: configuration has exactly one way in.
# (sourced library inlined above)
load_config
# Resolve a possibly-relative path against the caller's original directory.
abspath() {
case "$1" in
/*) echo "$1" ;;
*) echo "$INVOKED_FROM/$1" ;;
esac
}
OUT_BIN="${OUT_BIN:-$HOME/.local/bin}"
HOST_ROOT="${HOST_ROOT:-/}"
DEPS_SOURCE="${DEPS_SOURCE:-upstream}"
DEPS_ARTIFACTORY_URL="${DEPS_ARTIFACTORY_URL:-}"
BAKED_BIN="${BAKED_BIN:-/opt/rig/bin}"
# Collected by detect(), printed by report_manual() at the very end.
MANUAL=()
# Host FILES (/etc/..., /mnt/c/...) must be read through the mount. Kernel-level
# facts (kernel version, meminfo, inotify) are shared with the container, so the
# container's own view is already the host's.
# A /proc/meminfo field in MB, 0 if the field is absent. MEMINFO exists so the
# tight and does-not-fit branches can be exercised against a real machine's
# numbers from somewhere else; in normal use it is always /proc/meminfo.
mb_of() {
awk -v k="$1:" '$1 == k { printf "%d", $2 / 1024; found = 1 }
END { if (!found) printf "0" }' "${MEMINFO:-/proc/meminfo}"
}
host_file() {
local p="${1#/}"
if [ "$HOST_ROOT" != "/" ] && [ -e "$HOST_ROOT/$p" ]; then
echo "$HOST_ROOT/$p"
else
echo "/$p"
fi
}
# ── the tools this script itself needs ─────────────────────────────────────
arch() {
case "$(uname -m)" in
x86_64|amd64) echo amd64 ;;
aarch64|arm64) echo arm64 ;;
*) uname -m ;;
esac
}
# The pins above are amd64. Rather than download something that cannot execute
# and let it fail as "cannot execute binary file: Exec format error", say so
# here and hand over the commands that produce the right checksums.
require_amd64() {
local a; a=$(arch)
[ "$a" = "amd64" ] && return 0
cat >&2 <<EOF
This machine is ${a} ($(uname -m)); every pin in this script is linux/amd64.
Nothing here would run, so it does not download. To make an ${a} version, the
URLs need the ${a} artifact and the checksums need to come from each project's
own published list — not from these values, and not from a download you did:
curl -sSL https://github.com/kubernetes-sigs/kind/releases/download/${KIND_VERSION}/checksums.txt
curl -sSL https://dl.k8s.io/release/${KUBECTL_VERSION}/bin/linux/${a}/kubectl.sha256
curl -sSL https://github.com/tilt-dev/tilt/releases/download/v${TILT_VERSION}/checksums.txt
curl -sSL https://github.com/tilt-dev/ctlptl/releases/download/v${CTLPTL_VERSION}/checksums.txt
curl -sSL https://github.com/jqlang/jq/releases/download/jq-${JQ_VERSION}/sha256sum.txt
Edit the pinned block at the top of this file with what those print.
EOF
exit 1
}
DL=""
pick_downloader() {
if command -v curl >/dev/null 2>&1; then DL=curl
elif command -v wget >/dev/null 2>&1; then DL=wget
else
echo "neither curl nor wget is installed, so nothing can be downloaded." >&2
echo "Install one first: $(pkg_install_cmd curl)" >&2
exit 1
fi
}
download() {
local url="$1" out="$2"
case "$DL" in
curl) curl -fsSL --retry 3 -o "$out" "$url" ;;
wget) wget -q --tries=3 -O "$out" "$url" ;;
esac
}
SHA=""
pick_sha() {
if command -v sha256sum >/dev/null 2>&1; then SHA=sha256sum
elif command -v shasum >/dev/null 2>&1; then SHA="shasum -a 256"
else
echo "no sha256sum and no shasum — downloads could not be verified." >&2
echo "Refusing to install unverified binaries." >&2
exit 1
fi
}
# ── package manager, for the instructions only ─────────────────────────────
# This never runs a package manager. It names one so the reported action is
# something you can paste, on the distro you are actually on — an apt line on
# Amazon Linux 2 is a wrong answer dressed up as help.
pkg_install_cmd() {
local pkg="$1"
if command -v apt-get >/dev/null 2>&1; then echo "sudo apt-get update && sudo apt-get install -y $pkg"
elif command -v dnf >/dev/null 2>&1; then echo "sudo dnf install -y $pkg"
elif command -v yum >/dev/null 2>&1; then echo "sudo yum install -y $pkg"
elif command -v zypper >/dev/null 2>&1; then echo "sudo zypper install -y $pkg"
elif command -v apk >/dev/null 2>&1; then echo "sudo apk add $pkg"
else echo "install '$pkg' with this system's package manager"
fi
}
docker_pkg() {
# Debian and Ubuntu call it docker.io; the RPM distros call it docker.
if command -v apt-get >/dev/null 2>&1; then echo docker.io; else echo docker; fi
}
# ── detect ─────────────────────────────────────────────────────────────────
# Windows outside WSL — Git Bash, MSYS, Cygwin — looks close enough to work and
# then fails in a pile of confusing ways: no /proc, no docker socket, none of
# the tooling. Detectable, so name it instead.
require_linux() {
case "$(uname -s)" in
MINGW*|MSYS*|CYGWIN*)
cat >&2 <<'EOF'
This has to run inside WSL, not Git Bash / MSYS / Cygwin.
If WSL is not installed yet, from an elevated PowerShell or Command Prompt:
wsl --install
That enables Windows features and needs a reboot, so it is not something this
script will do for you. Afterwards, open the Linux shell it installs and run
this from there.
See "Starting from plain Windows" in README.md.
EOF
exit 1 ;;
esac
}
is_wsl() { grep -qi microsoft /proc/version 2>/dev/null; }
detect() {
echo "host"
echo " kernel $(uname -r)"
echo " arch $(arch) ($(uname -m))"
local osr; osr=$(host_file /etc/os-release)
[ -r "$osr" ] && echo " distro $(sed -n 's/^PRETTY_NAME="\(.*\)"/\1/p' "$osr")"
# In MB. Whole gigabytes lose nearly half a GB on exactly the machines where
# it matters: 1874 MB available used to print as "1 GB". Facts only — whether
# that is enough depends on the profile, which check.sh knows and this does not.
local total_mb avail_mb swap_total_mb swap_used_mb om
total_mb=$(mb_of MemTotal)
avail_mb=$(mb_of MemAvailable)
swap_total_mb=$(mb_of SwapTotal)
swap_used_mb=$(( swap_total_mb - $(mb_of SwapFree) ))
printf " memory %d MB total, %d MB available\n" "$total_mb" "$avail_mb"
if [ "$swap_total_mb" -gt 0 ]; then
printf " swap %d MB used of %d MB\n" "$swap_used_mb" "$swap_total_mb"
fi
# How the kernel answers an allocation it cannot really satisfy. With 1 it
# always says yes and settles up later with the OOM killer, so a cluster that
# starts cleanly can still lose processes afterwards.
om=$(cat "${OVERCOMMIT_FILE:-/proc/sys/vm/overcommit_memory}" 2>/dev/null || echo '?')
case "$om" in
0) echo " overcommit 0 heuristic — allocations are granted on a guess" ;;
1) echo " overcommit 1 always — every allocation succeeds; the OOM killer is the only limit" ;;
2) echo " overcommit 2 strict — an allocation fails honestly instead of killing later" ;;
esac
echo " install to $OUT_BIN"
detect_libc
detect_prereqs
detect_wsl
detect_filesystem
detect_docker
detect_inotify
detect_toolchain
}
detect_wsl() {
if ! is_wsl; then
echo " platform native linux"
return
fi
echo " platform WSL"
# systemd is off by default in WSL, and the ingress/DNS paths that use a
# host service need it. Enabling it requires a Windows-side restart, which
# cannot be issued from inside the distro.
local wc; wc=$(host_file /etc/wsl.conf)
if [ -r "$wc" ] && grep -qE '^\s*systemd\s*=\s*true' "$wc"; then
echo " systemd enabled in wsl.conf"
else
echo " ! systemd not enabled in /etc/wsl.conf"
MANUAL+=("Enable systemd — add to /etc/wsl.conf:
[boot]
systemd=true
then from a WINDOWS terminal (not this shell): wsl --shutdown")
fi
# WSL regenerates /etc/resolv.conf on every boot, which silently reverts any
# local DNS setup.
if [ -r "$wc" ] && grep -qE '^\s*generateResolvConf\s*=\s*false' "$wc"; then
echo " resolv.conf pinned (generateResolvConf=false)"
else
echo " - resolv.conf is WSL-generated; DNS_MODE=dnsmasq would be reverted on reboot"
fi
local wcfg
wcfg=$(ls "$HOST_ROOT"/mnt/c/Users/*/.wslconfig 2>/dev/null | head -1 || true)
if [ -n "$wcfg" ] && grep -qE '^\s*memory\s*=' "$wcfg"; then
echo " wslconfig memory set: $(grep -E '^\s*memory\s*=' "$wcfg" | tr -d ' ')"
else
MANUAL+=("Cap/raise the WSL VM memory — see what is set versus what booted:
make mem status
It prints the edit to make and the command to apply it.")
fi
}
# Not a path check: /mnt is an ordinary mount point and an ext4 disk mounted
# there is perfectly fine. What matters is the filesystem. The Windows drives
# arrive as 9p (WSL2) or drvfs (WSL1); network and fuse mounts behave the same
# way. None of them deliver inotify events, so anything watching files goes
# quiet without saying why.
watch_hostile_fs() {
local dir="$1" fstype
fstype=$(findmnt -no FSTYPE --target "$dir" 2>/dev/null || true)
[ -n "$fstype" ] || fstype=$(stat -f -c %T "$dir" 2>/dev/null || true)
case "$fstype" in
9p|v9fs|drvfs|cifs|smb3|nfs|nfs4|fuse.sshfs|fuseblk) echo "$fstype" ;;
*) echo "" ;;
esac
}
detect_filesystem() {
local root fstype
root=$(cd .. && pwd -P)
fstype=$(watch_hostile_fs "$root")
if [ -n "$fstype" ]; then
echo " ! this directory is on $fstype — file watching will not work"
MANUAL+=("Move this onto the local disk. Nothing watching files sees changes
on a $fstype mount, and everything else is slower:
cp -r \"$root\" ~/ && cd ~/$(basename "$root")")
else
echo " filesystem $root ($(findmnt -no FSTYPE --target "$root" 2>/dev/null || echo local))"
fi
}
# tilt is the one binary here that needs a recent glibc. MEASURED, not guessed:
# tilt 0.37.6 on Amazon Linux 2 (glibc 2.26) fails with
#
# /lib64/libc.so.6: version `GLIBC_2.34' not found (required by .../tilt)
#
# which names a symbol rather than the problem. Amazon Linux 2 is a stock
# WorkSpaces bundle, so this is the likely case, not an exotic one. Report the
# version now; `verify` catches the actual failure after installing.
detect_libc() {
local v=""
if command -v ldd >/dev/null 2>&1; then
v=$(ldd --version 2>/dev/null | head -1 | grep -oE '[0-9]+\.[0-9]+$' || true)
fi
if [ -z "$v" ]; then
echo " libc unknown (no ldd) — 'verify' is the real test"
return 0
fi
echo " libc glibc $v"
if [ "$(printf '%s\n2.34\n' "$v" | sort -V | head -1)" != "2.34" ]; then
echo " ! older than glibc 2.34, which tilt needs. kubectl, kind, jq and"
echo " ctlptl are static or libc-only and work here; tilt will not start."
echo " Install the core tier, or run tilt from a container."
fi
return 0
}
# What this script needs to do its own job. Reported here so `detect` answers
# "will install work?" instead of leaving you to find out one download in.
# Amazon Linux 2 ships without tar, which is exactly the surprise this catches.
detect_prereqs() {
local missing=""
if command -v curl >/dev/null 2>&1; then echo " download curl"
elif command -v wget >/dev/null 2>&1; then echo " download wget"
else echo " ! no curl and no wget — nothing can be downloaded"; missing+=" curl"
fi
if command -v sha256sum >/dev/null 2>&1 || command -v shasum >/dev/null 2>&1; then
echo " checksums ok"
else
echo " ! no sha256sum or shasum — downloads could not be verified"
missing+=" coreutils"
fi
if command -v tar >/dev/null 2>&1 && command -v gzip >/dev/null 2>&1; then
echo " archives tar + gzip"
else
echo " ! no tar/gzip — tilt and ctlptl ship as tarballs, so the dev tier"
echo " cannot be unpacked. The core tier is two bare binaries and is fine."
missing+=" tar gzip"
fi
if [ -n "$missing" ]; then
MANUAL+=("Install what this script needs to run at all:
$(pkg_install_cmd "${missing# }")")
fi
return 0
}
detect_docker() {
# Reachability of the daemon is the real question, and the CLI is only how
# we ask it. Note that when this runs inside the installer container, Docker
# necessarily exists on the host — otherwise nothing would be executing —
# so a missing CLI in here is an installer packaging bug, not a host problem.
if ! command -v docker >/dev/null 2>&1; then
if [ -S /var/run/docker.sock ]; then
echo " docker socket present (no cli in this context)"
else
echo " ! docker not found and no socket at /var/run/docker.sock"
MANUAL+=("Install Docker — the one true prerequisite, and the only thing here
that needs root:
$(pkg_install_cmd "$(docker_pkg)")
sudo systemctl enable --now docker
sudo usermod -aG docker \"\$USER\"
then log out and back in, so the new group applies to your shell.")
fi
return
fi
if docker info >/dev/null 2>&1; then
echo " docker $(docker version --format '{{.Server.Version}}' 2>/dev/null)"
local n
n=$(docker ps --filter "label=io.x-k8s.kind.cluster" --format '{{.Names}}' 2>/dev/null | wc -l)
# Must be an `if`, not `[ ] && echo`: as the last statement in this
# function the latter returns 1 when the count is zero, and `set -e`
# then kills the caller. That is the fresh-machine case — no clusters
# yet — so the bug only ever shows up where it does most harm.
if [ "$n" -gt 0 ]; then
echo " - $n kind node container(s) already running; see 'make cluster list'"
fi
else
echo " ! docker cli present but the daemon is unreachable"
MANUAL+=("Start Docker, or add yourself to the docker group:
sudo usermod -aG docker \"\$USER\" # then log out and back in")
fi
}
# kind and Tilt both watch large trees. WSL ships defaults (8192/128) far too low,
# and the failure mode is silent: Tilt simply stops noticing file changes.
detect_inotify() {
local w i
w=$(cat /proc/sys/fs/inotify/max_user_watches 2>/dev/null || echo 0)
i=$(cat /proc/sys/fs/inotify/max_user_instances 2>/dev/null || echo 0)
echo " inotify watches=$w instances=$i"
if [ "$w" -lt 524288 ] || [ "$i" -lt 512 ]; then
echo " ! inotify limits are low — Tilt will silently stop noticing file changes"
MANUAL+=("Raise inotify limits (needs root on the host):
echo -e 'fs.inotify.max_user_watches=524288\\nfs.inotify.max_user_instances=512' \\
| sudo tee /etc/sysctl.d/99-rig.conf
sudo sysctl --system")
fi
}
# ── fetch ──────────────────────────────────────────────────────────────────
# Resolve where a given artifact comes from, honouring DEPS_SOURCE.
resolve_url() {
local upstream="$1"
case "$DEPS_SOURCE" in
upstream) echo "$upstream" ;;
artifactory)
if [ -z "$DEPS_ARTIFACTORY_URL" ]; then
echo "DEPS_SOURCE=artifactory but DEPS_ARTIFACTORY_URL is empty" >&2
exit 1
fi
echo "${DEPS_ARTIFACTORY_URL%/}/$(basename "$upstream")"
;;
*) echo "unsupported DEPS_SOURCE '$DEPS_SOURCE' for a download" >&2; exit 1 ;;
esac
}
verify() {
local file="$1" want="$2" name="$3" got
got=$($SHA "$file" | awk '{print $1}')
if [ "$got" != "$want" ]; then
echo "checksum mismatch for $name" >&2
echo " expected $want" >&2
echo " got $got" >&2
exit 1
fi
}
# fetch_bin <name> <url> <sha256> <dest-dir> — a bare binary
fetch_bin() {
local name="$1" url="$2" sha="$3" dest="$4"
local tmp="$dest/.$name.tmp"
echo " fetching $name"
download "$(resolve_url "$url")" "$tmp"
verify "$tmp" "$sha" "$name"
mv "$tmp" "$dest/$name"
chmod +x "$dest/$name"
}
# fetch_tgz <name> <url> <sha256> <dest-dir> <path-inside-archive> <strip>
# Archive layouts differ — tilt's is flat (the binary at the root, strip=0),
# others nest it a directory down — so the caller says which.
fetch_tgz() {
local name="$1" url="$2" sha="$3" dest="$4" inner="$5" strip="$6"
local tmp="$dest/.$name.tgz"
echo " fetching $name"
download "$(resolve_url "$url")" "$tmp"
verify "$tmp" "$sha" "$name"
# --no-same-owner: extracting as root would otherwise restore the uid/gid
# baked into the archive (some ship as uid 1001), leaving a binary the host
# user does not own.
tar -xzf "$tmp" -C "$dest" --strip-components="$strip" --no-same-owner "$inner"
rm -f "$tmp"
chmod +x "$dest/$name"
}
# The installer runs as root so it can reach the docker socket, which means
# everything it writes into a mounted volume lands root-owned and unusable from
# the host. Hand it back to whoever owns the mount point (the host user created
# that directory before mounting it).
fix_ownership() {
local dir="$1"
[ -d "$dir" ] || return 0
local owner="${HOST_UID:-}:${HOST_GID:-}"
if [ "$owner" = ":" ]; then
owner=$(stat -c '%u:%g' "$dir")
fi
[ "$owner" = "0:0" ] && return 0
chown -R "$owner" "$dir" 2>/dev/null || true
}
# Two tiers, because not every machine should get cluster tooling.
#
# core kubectl, jq — talk to a cluster someone else runs. Nothing that
# creates one. Appropriate on a managed or corporate-issued machine
# where development tools are not wanted by default.
# dev core plus kind and tilt — build clusters and hot-reload into them.
#
# The split exists because "install the toolchain" is not one decision: on a
# managed workspace the right answer is kubectl and nothing else.
CORE_TOOLS="kubectl jq"
# No helm: every addon installs with `kubectl apply -f <url>`, so nothing here
# has ever invoked it. Add it back the day something actually needs a chart.
#
# ctlptl is 'dev' rather than 'core' for the same reason kind is: core is "talk
# to a cluster someone else runs", and ctlptl builds them. It earns its place
# because it is what wires a cluster to a local registry — without one, an
# unqualified image name resolves to docker.io/library/<name> and there is
# nothing structural stopping a push there.
#
# docker-compose is 'dev' for the same reason, and is here because the distro
# docker packages ship the daemon and CLI but frequently not the compose
# plugin — so `docker compose up` fails with "unknown command" on an otherwise
# working Docker, and nothing about that message names the missing piece.
DEV_TOOLS="kind tilt ctlptl docker-compose"
# ── what is already on this machine ───────────────────────────────────────
#
# A tool already on PATH at its pinned version is left where it is. Without
# this, install downloads a second copy into OUT_BIN and then reports the first
# one as shadowed — noise, and wrong, when both are the same version. That is
# the normal state of any machine someone set up by hand, whatever directory
# they happened to choose.
pin_of() {
case "$1" in
kubectl) echo "$KUBECTL_VERSION" ;;
jq) echo "$JQ_VERSION" ;;
kind) echo "$KIND_VERSION" ;;
tilt) echo "$TILT_VERSION" ;;
ctlptl) echo "$CTLPTL_VERSION" ;;
docker-compose) echo "$COMPOSE_VERSION" ;;
esac
}
# The version string a binary reports. Each tool spells the question
# differently, and kubectl has to be told --client or it goes looking for a
# server to ask.
reported_version() {
local tool="$1" path="$2"
case "$tool" in
kubectl) "$path" version --client 2>/dev/null ;;
jq) "$path" --version 2>/dev/null ;;
*) "$path" version 2>/dev/null ;;
esac
}
# Does the binary at PATH report PIN? Matched as a whole version token, so
# 0.37.6 never matches 10.37.60, with the leading v optional either side: kind
# says v0.32.0, jq says jq-1.8.2, and tilt says v0.37.6 against a pin of 0.37.6.
#
# Bash's own regex rather than grep, deliberately. grep is not the same program
# on every machine — some builds reject patterns that others accept — and a
# failed grep inside a count reads exactly like a zero.
version_matches() {
local tool="$1" path="$2" pin="$3" out v re
out=$(reported_version "$tool" "$path") || return 1
v="${pin#v}"
v="${v//./\\.}"
re="(^|[^0-9.])v?${v}([^0-9.]|\$)"
[[ $out =~ $re ]]
}
# DEPS_ONLY narrows a fetch to the tools it names. Unset means the whole tier,
# which is what an explicit `deps.sh fetch` always gets: "download these into
# DIR" must not quietly skip something because this machine happens to have it.
# Only install() sets it, to what detect_toolchain found missing or mismatched.
want() { [ -z "${DEPS_ONLY:-}" ] || [[ " $DEPS_ONLY " == *" $1 "* ]]; }
# Every tool in the tier with its state, probed once and reported once. What
# still needs fetching is left in TOOLCHAIN_NEED for install() to act on.
TOOLCHAIN_NEED=""
detect_toolchain() {
local tier="${TIER:-dev}" b pin path found
TOOLCHAIN_NEED=""
echo
echo "toolchain (pinned, tier '$tier')"
for b in $(tier_tools "$tier"); do
pin=$(pin_of "$b")
path=$(command -v "$b" 2>/dev/null || true)
# compose is the one tool that is normally NOT a binary on PATH. It is a
# docker CLI plugin, so a machine where `docker compose` works perfectly
# has no `docker-compose` to find — and probing only PATH would report it
# missing and re-download a copy that is already there. That is the exact
# noise the version-aware skip exists to prevent, so ask docker instead.
if [ "$b" = docker-compose ] && [ -z "$path" ]; then
if found=$(docker compose version --short 2>/dev/null) && [ -n "$found" ]; then
if [ "${found#v}" = "${pin#v}" ]; then
printf " %-8s %-9s %s\n" "$b" "$pin" "docker cli plugin"
else
printf " ! %-8s wants %s, the docker cli plugin reports '%s'\n" \
"$b" "$pin" "$found"
TOOLCHAIN_NEED+="$b "
fi
continue
fi
fi
if [ -z "$path" ]; then
printf " - %-8s %-9s not found\n" "$b" "$pin"
TOOLCHAIN_NEED+="$b "
elif version_matches "$b" "$path" "$pin"; then
printf " %-8s %-9s %s\n" "$b" "$pin" "$path"
else
found=$(reported_version "$b" "$path" 2>/dev/null | head -1 || true)
printf " ! %-8s wants %s, %s reports '%s'\n" "$b" "$pin" "$path" "$found"
TOOLCHAIN_NEED+="$b "
fi
done
if [ -z "$TOOLCHAIN_NEED" ]; then
echo " every pinned tool is already on PATH — nothing to fetch"
else
echo " 'make deps' fetches only: ${TOOLCHAIN_NEED% }"
fi
}
fetch() {
local dest="$OUT_BIN" tier="${TIER:-dev}"
while [ $# -gt 0 ]; do
case "$1" in
--to) dest="$2"; shift 2 ;;
core|dev) tier="$1"; shift ;;
*) echo "unknown argument: $1" >&2; exit 1 ;;
esac
done
dest="$(abspath "$dest")"
mkdir -p "$dest"
TIER="$tier"
if [ "$DEPS_SOURCE" = "baked" ]; then
echo "installing baked binaries from $BAKED_BIN"
cp -a "$BAKED_BIN"/. "$dest"/
fix_ownership "$dest"
return
fi
if [ -n "${DEPS_ONLY:-}" ]; then
echo "fetching ${DEPS_ONLY% } (source: $DEPS_SOURCE)"
else
echo "fetching '$tier' toolchain (source: $DEPS_SOURCE)"
fi
if want kubectl; then fetch_bin kubectl "$KUBECTL_URL" "$KUBECTL_SHA256" "$dest"; fi
if want jq; then fetch_bin jq "$JQ_URL" "$JQ_SHA256" "$dest"; fi
if [ "$tier" = "dev" ]; then
if want kind; then fetch_bin kind "$KIND_URL" "$KIND_SHA256" "$dest"; fi
if want tilt; then fetch_tgz tilt "$TILT_URL" "$TILT_SHA256" "$dest" tilt 0; fi
if want ctlptl; then fetch_tgz ctlptl "$CTLPTL_URL" "$CTLPTL_SHA256" "$dest" ctlptl 0; fi
if want docker-compose; then
fetch_bin docker-compose "$COMPOSE_URL" "$COMPOSE_SHA256" "$dest"
fi
fi
fix_ownership "$dest"
# kind writes the kubeconfig as root too; hand that back as well when it's
# a mounted host directory rather than container-local state.
fix_ownership "${KUBE_DIR:-/out/kube}"
}
# ── install ────────────────────────────────────────────────────────────────
report_manual() {
echo
if [ ${#MANUAL[@]} -eq 0 ]; then
echo "nothing left to do by hand."
return
fi
echo "host actions this cannot perform (${#MANUAL[@]}):"
echo
local n=1
for m in "${MANUAL[@]}"; do
echo " $n. $m"
echo
n=$((n + 1))
done
}
# Installing into a directory that sits early in PATH silently replaces whatever
# the machine was already using — which on a shared or client machine can break
# unrelated work (kubectl more than one minor away from a cluster is the common
# one). Say so; never decide it for them.
# Downloading a verified binary proves it is the right file, not that this
# machine can run it. On an old distro tilt fails here, with a linker error
# about a missing symbol, and finding that out now beats finding out during a
# first cluster build.
verify_tools() {
local tier="${1:-dev}" b bin out rc broke=0
echo "checking that each one actually runs"
for b in $(tier_tools "$tier"); do
bin="$OUT_BIN/$b"
if [ ! -x "$bin" ]; then
printf ' %-14s not installed\n' "$b"
continue
fi
# Not piped into `head`. With `pipefail` set, a tool that prints more
# than one line gets SIGPIPE when head closes the pipe, and the
# pipeline reports 141 — so a working kubectl was announced as "does
# not run here", with its own correct version string as the evidence.
# Take the first line afterwards, from the string.
rc=0
case "$b" in
kubectl) out=$("$bin" version --client 2>&1) || rc=$? ;;
jq) out=$("$bin" --version 2>&1) || rc=$? ;;
*) out=$("$bin" version 2>&1) || rc=$? ;;
esac
out=${out%%$'\n'*}
if [ "$rc" -eq 0 ]; then
printf ' %-14s %s\n' "$b" "$out"
else
printf ' ! %-12s does not run here: %s\n' "$b" "$out"
broke=1
fi
done
if [ "$broke" -eq 1 ]; then
echo
echo " A binary that downloads and verifies but will not start is almost"
echo " always this distro's libc being older than the release needs."
echo " 'detect' prints the glibc version. The core tier (kubectl + jq)"
echo " has no such dependency and will work regardless."
fi
return 0
}
list() {
echo "pinned, linux/amd64 only:"
printf ' %-14s %s\n' kubectl "$KUBECTL_VERSION"
printf ' %-14s %s\n' jq "$JQ_VERSION"
printf ' %-14s %s\n' kind "$KIND_VERSION"
printf ' %-14s %s\n' tilt "$TILT_VERSION"
printf ' %-14s %s\n' ctlptl "$CTLPTL_VERSION"
printf ' %-14s %s\n' docker-compose "$COMPOSE_VERSION"
echo
echo " core = $CORE_TOOLS"
echo " dev = $CORE_TOOLS $DEV_TOOLS"
echo
echo "Checksums are pinned in the block at the top of this file. To bump one,"
echo "take the new checksum from the publisher's own release list — the header"
echo "comment has the exact commands."
return 0
}
tier_tools() { [ "$1" = "core" ] && echo "$CORE_TOOLS" || echo "$CORE_TOOLS $DEV_TOOLS"; }
warn_shadowing() {
local b existing shadowed="" tier="${1:-dev}"
for b in $(tier_tools "$tier"); do
[ -x "$OUT_BIN/$b" ] || continue
# Where would this resolve if OUT_BIN weren't in the way?
existing=$(PATH=$(echo "$PATH" | tr ':' '\n' | grep -vx "$OUT_BIN" | paste -sd:) \
command -v "$b" 2>/dev/null || true)
[ -n "$existing" ] || continue
[ "$existing" = "$OUT_BIN/$b" ] && continue
# The same version in both places is not a conflict: nothing changes for
# any other project whichever copy PATH happens to find first.
if version_matches "$b" "$existing" "$(pin_of "$b")"; then continue; fi
shadowed+=" $b $existing"$'\n'
done
[ -n "$shadowed" ] || return 0
case ":${PATH}:" in
*":$OUT_BIN:"*) ;;
*) return 0 ;; # not on PATH yet, so nothing is being shadowed
esac
echo
echo " ! these were already installed elsewhere and are now shadowed by $OUT_BIN:"
printf '%s' "$shadowed"
echo " Other projects on this machine will pick up the new versions."
MANUAL+=("Decide which toolchain wins. To keep the previous one, remove what
was just installed:
rm -f $(for b in $(tier_tools "$tier"); do printf '%s ' "$OUT_BIN/$b"; done)
Or install somewhere private instead:
OUT_BIN=\$PWD/def/bin make deps # then put that dir first in PATH")
}
# A copy in OUT_BIN only gives you `docker-compose`. That hyphenated form is the
# retired v1 spelling; every compose file written in the last few years assumes
# `docker compose`, which resolves plugins BY NAME out of a plugin directory.
# So the binary is fetched like any other and then linked, in your own home —
# no root, and nothing outside it.
install_compose_plugin() {
local src="$OUT_BIN/docker-compose" dir="$HOME/.docker/cli-plugins"
[ -x "$src" ] || return 0
mkdir -p "$dir"
# Something else already owns that name — docker-desktop and some distro
# packages install a real file there. Overwriting it would take the plugin
# away from whatever put it there, so say so and let the user decide.
if [ -e "$dir/docker-compose" ] && [ ! -L "$dir/docker-compose" ]; then
MANUAL+=("Something already installs the compose plugin at
$dir/docker-compose
To use rig's pinned build instead:
ln -sf $src $dir/docker-compose")
return 0
fi
ln -sfn "$src" "$dir/docker-compose"
echo " compose plugin -> $dir/docker-compose"
return 0
}
install() {
local tier="${1:-dev}" b
TIER="$tier"
detect
# detect_toolchain has already probed PATH. Fetch only what it found missing
# or at the wrong version; a tool already present at its pin stays where it is.
if [ -n "$TOOLCHAIN_NEED" ]; then
echo
DEPS_ONLY="$TOOLCHAIN_NEED" fetch "$tier"
echo
echo "installed to $OUT_BIN ($tier):"
for b in $TOOLCHAIN_NEED; do
if [ -x "$OUT_BIN/$b" ]; then echo " $b"; fi
done
if [ "$tier" = "core" ]; then
echo " (no kind/tilt — 'make deps dev' adds them)"
fi
# Only when compose was one of the things fetched: linking a binary
# that is already satisfied elsewhere on PATH would point the plugin at
# a copy rig did not install.
case " $TOOLCHAIN_NEED " in
*" docker-compose "*) install_compose_plugin ;;
esac
# Only worth saying when something actually landed in OUT_BIN. When every
# tool was satisfied elsewhere, OUT_BIN may reasonably be off PATH, and
# telling the user to add it would be advice to fix nothing.
case ":${PATH}:" in
*":$OUT_BIN:"*) ;;
*) MANUAL+=("Put the toolchain on your PATH — add to ~/.bashrc:
export PATH=\"${OUT_BIN}:\$PATH\"") ;;
esac
fi
warn_shadowing "$tier"
report_manual
}
# ── main ───────────────────────────────────────────────────────────────────
require_linux
# Read the command, THEN shift — and shift only if there is something there.
# A bare `shift` with no positional parameters returns 1, and under `set -e`
# that ended the script before a single line was printed: running this with no
# arguments at all, the documented default, did nothing and said nothing.
cmd="${1:-install}"
[ $# -gt 0 ] && shift
# Baked mode copies binaries already in the image, so it needs no downloader.
need_downloads() {
require_amd64
if [ "$DEPS_SOURCE" != baked ]; then pick_downloader; fi
pick_sha
}
case "$cmd" in
detect) detect; report_manual ;;
list) list ;;
verify) verify_tools "${1:-dev}" ;;
fetch) need_downloads; fetch "$@" ;;
install) need_downloads; install "${1:-dev}" ;;
*) echo "usage: $0 [detect|list|verify|fetch|install]" >&2
echo " install [core|dev] (default dev)" >&2
echo " fetch [core|dev] [--to DIR]" >&2
echo " OUT_BIN=<dir> overrides the install directory" >&2
exit 1 ;;
esac

860
rig/standalone/offline/rigmini.sh
View File

@@ -1,860 +0,0 @@
#!/usr/bin/env bash
# GENERATED by make standalone — do not edit
#
# rigmini.sh for profile 'offline', flattened from:
# ctrl/mem.sh
# ctrl/lib/config.sh
# Edit those and run `make standalone`. Changes made here are lost, and
# `make selftest` fails while this file differs from what rig generates.
# ── from the libraries ──
declare -- CONFIG_OVERRIDABLE=$'PROFILE CLUSTER K8S_VERSION KIND_CONFIG ADDONS\n REGISTRY_MODE INGRESS_MODE DNS_MODE TILT_PORT\n SOURCE ARCH DEPS_SOURCE HTTP_PORT HTTPS_PORT\n REGISTRY_PORT MANIFESTS_DIR'
_config_restore ()
{
local line;
while IFS= read -r line; do
if [ -n "$line" ]; then
eval "export $line";
fi;
done <<< "$1";
return 0
}
default_cluster_name ()
{
local n;
n=$(basename "$(cd .. && pwd)");
n=$(echo "$n" | tr '[:upper:]' '[:lower:]' | tr -c 'a-z0-9-' '-');
n=$(echo "$n" | sed 's/^-*//; s/-*$//');
echo "${n:-rig}"
}
derive_port_base ()
{
local h;
h=$(printf '%s' "$1" | cksum | awk '{print $1}');
echo $((20000 + (h % 200) * 10))
}
render_kind_config ()
{
local host_workdir="${HOST_WORKDIR:-$(cd .. && pwd)}";
sed -e "s|\${CLUSTER}|${CLUSTER}|g" -e "s|\${NODE_IMAGE}|${NODE_IMAGE}|g" -e "s|\${HTTP_PORT}|${HTTP_PORT}|g" -e "s|\${HOST_WORKDIR}|${host_workdir}|g" "$KIND_CONFIG_PATH"
}
# ── configuration, frozen for profile 'offline' ──
load_config() {
local k saved=""
for k in $CONFIG_OVERRIDABLE; do
if [ -n "${!k+x}" ]; then saved+="$k=$(printf '%q' "${!k}")"$'\n'; fi
done
declare -gx ADDONS="metallb"
declare -gx AIRFLOW_IMAGE="apache/airflow:2.10.4"
declare -g AUDIT="on"
declare -gx CERT_MANAGER_VERSION="v1.21.1"
declare -g CLUSTER="rig"
declare -gx COMPOSE_SHA256="db1889184726840f75c4f9c001048430d4f25b3be3cb084d3ddd762bc0aed576"
declare -gx COMPOSE_URL="https://github.com/docker/compose/releases/download/v5.5.1/docker-compose-linux-x86_64"
declare -gx COMPOSE_VERSION="5.5.1"
declare -gx CTLPTL_SHA256="c63a1ec28e60bc3faf6becb76f53355c5cf5e0143dafdd27ad85db5584fa6b1e"
declare -gx CTLPTL_URL="https://github.com/tilt-dev/ctlptl/releases/download/v0.9.4/ctlptl.0.9.4.linux.x86_64.tar.gz"
declare -gx CTLPTL_VERSION="0.9.4"
declare -gx DNS_MODE="hosts"
declare -g HTTPS_PORT="20311"
declare -g HTTP_PORT="20310"
declare -gx INGRESS_MODE="hostport"
declare -gx JQ_SHA256="b1c22172dd303f3be49e935aa56aa48a8b7a46e0bc838b4997d3bb451495870f"
declare -gx JQ_URL="https://github.com/jqlang/jq/releases/download/jq-1.8.2/jq-linux-amd64"
declare -gx JQ_VERSION="1.8.2"
declare -gx K8S_VERSION="v1_36"
declare -gx KIND_CONFIG="kind-config.audit.yaml.tpl"
declare -g KIND_CONFIG_PATH="./k8s/kind-config.audit.yaml.tpl"
declare -g KIND_CONFIG_SHOWN="ctrl/k8s/kind-config.audit.yaml.tpl"
declare -gx KIND_SHA256="50030de23cf40a18505f20426f6a8506bedf13c6e509244bd1fa9463721b0f54"
declare -gx KIND_URL="https://github.com/kubernetes-sigs/kind/releases/download/v0.32.0/kind-linux-amd64"
declare -gx KIND_VERSION="v0.32.0"
declare -g KUBECONTEXT="kind-rig"
declare -gx KUBECTL_SHA256="ebbd080e7c2e275093b55915722043257eb24004363e20acb3c4d71919f88336"
declare -gx KUBECTL_URL="https://dl.k8s.io/release/v1.36.3/bin/linux/amd64/kubectl"
declare -gx KUBECTL_VERSION="v1.36.3"
declare -g MANIFESTS_DIR="ctrl/k8s/overlays/dev"
declare -gx METALLB_VERSION="v0.16.0"
declare -gx METRICS_SERVER_VERSION="v0.9.0"
declare -g NODES="1"
declare -g NODE_IMAGE="kindest/node:v1.36.1@sha256:3489c7674813ba5d8b1a9977baea8a6e553784dab7b84759d1014dbd78f7ebd5"
declare -gx NODE_IMAGE_v1_33="kindest/node:v1.33.12@sha256:3f5c8443c620245e4d355cfe09e96a91ead32ceaa569d3f1ca9edf0cb2fe2ff4"
declare -gx NODE_IMAGE_v1_34="kindest/node:v1.34.8@sha256:02722c2dedddcfc00febf5d27fbeb9b7b2c14294c82109ff4a85d89ac9ba3256"
declare -gx NODE_IMAGE_v1_35="kindest/node:v1.35.5@sha256:ce977ae6d65918d0b58a5f8b5e940429c2ce42fa3a5619ec2bbc60b949c0ac95"
declare -gx NODE_IMAGE_v1_36="kindest/node:v1.36.1@sha256:3489c7674813ba5d8b1a9977baea8a6e553784dab7b84759d1014dbd78f7ebd5"
declare -g NODE_MB="800"
declare -gx POSTGRES_IMAGE="postgres:16-alpine"
declare -gx PROFILE="offline"
declare -gx PROFILE_NAME="offline"
declare -gx REDIS_IMAGE="redis:7-alpine"
declare -gx REGISTRY_IMAGE="registry:2"
declare -gx REGISTRY_MODE="local"
declare -g REGISTRY_PORT="20313"
declare -gx STUB_IMAGE="python:3.12-slim"
declare -g TILT_PORT="20312"
declare -gx TILT_SHA256="e9672b8a18d43501f35dcfe98465969a7db0e436b36cf0c50c7e6f8d40de5fe6"
declare -gx TILT_URL="https://github.com/tilt-dev/tilt/releases/download/v0.37.6/tilt.0.37.6.linux.x86_64.tar.gz"
declare -gx TILT_VERSION="0.37.6"
_config_restore "$saved"
}
# ── end of frozen configuration ──
# ── ctrl/mem.sh ──
# How much memory this machine will actually give you before something dies —
# rig's memory tool, and (generated from this file) the standalone rigmini.sh.
#
# There are two numbers and they are rarely the same. `status` reports what the
# machine ADVERTISES and what is quietly capping it. `push` finds what it will
# SURVIVE, by allocating until it stops. `all` does both and weighs the result
# against what this profile's cluster needs.
#
# The gap between them is the whole reason this exists. Under WSL the cap lives
# in .wslconfig; in a container or a managed workspace it is a cgroup limit, and
# there /proc/meminfo reports the HOST's memory while the kernel kills you at a
# fraction of it. A script that only read MemTotal would confidently report 32 GB
# on a box that OOMs at 2.
#
# Runs on native Linux and under WSL. On WSL the memory you see is a VM
# allocation that can be raised, and the commonest failure is raising it without
# restarting — so status compares what .wslconfig says with what actually booted.
#
# Reports and instructs. It never raises a limit, frees anything or installs a
# package. The one write it can make is `backup`, which copies .wslconfig beside
# itself, so that `restore` has something to put back after a hand edit.
#
# Usage:
# mem.sh status what it has, what caps it
# mem.sh push [--to GB] [--to-oom] climb until it stops
# mem.sh all [--budget GB] both, then the verdict
# mem.sh backup | restore .wslconfig, WSL only
set -euo pipefail
cd "$(dirname "$0")"
# (sourced library inlined above)
# ── defaults ───────────────────────────────────────────────────────────────
STEP_MB=0 # per allocation; 0 means scale it to the ceiling. See push().
STEP_EXPLICIT=no # whether --step was given, which turns the scaling off.
TO_MB="" # --to: stop here regardless. Empty means no hard cap.
TO_OOM=no # --to-oom: opt in to running until the kernel intervenes.
BUDGET_GB="" # --budget; empty means what this profile's cluster needs, from rig.
BUDGET_EXPLICIT=no # whether --budget was given, which retires the guess below.
# ── platform ───────────────────────────────────────────────────────────────
# Windows outside WSL — Git Bash, MSYS, Cygwin — looks close enough to work and
# then fails in a pile of confusing ways: no /proc, no docker socket, none of
# the tooling. Detectable, so name it instead.
require_linux() {
case "$(uname -s)" in
MINGW*|MSYS*|CYGWIN*)
cat >&2 <<'EOF'
This has to run inside WSL, not Git Bash / MSYS / Cygwin.
If WSL is not installed yet, from an elevated PowerShell or Command Prompt:
wsl --install
That enables Windows features and needs a reboot, so it is not something this
script will do for you. Afterwards, open the Linux shell it installs and run
this from there.
EOF
exit 1 ;;
esac
# Everything below reads /proc. Without it there is nothing to measure, and
# failing here beats printing a page of empty fields.
if [ ! -r /proc/meminfo ]; then
echo "no readable /proc/meminfo — this needs a Linux kernel." >&2
echo "On macOS or a BSD none of the numbers below exist." >&2
exit 1
fi
}
is_wsl() { grep -qi microsoft /proc/version 2>/dev/null; }
is_container() {
[ -f /.dockerenv ] && return 0
grep -qE '(docker|containerd|kubepods|lxc|podman)' /proc/1/cgroup 2>/dev/null
}
platform() {
if is_wsl; then echo WSL
elif is_container; then echo container
else echo "native linux"
fi
}
# ── reading memory ─────────────────────────────────────────────────────────
mb() { echo $(( $(awk "/^$1:/{print \$2}" /proc/meminfo) / 1024 )); }
# MemAvailable arrived in kernel 3.14. Older kernels — and they turn up on
# corporate images — need the estimate it replaced, which is worse but not wrong.
avail_meminfo_mb() {
if grep -q '^MemAvailable:' /proc/meminfo; then
mb MemAvailable
else
awk '/^(MemFree|Buffers|Cached):/{t+=$2} END{print int(t/1024)}' /proc/meminfo
fi
}
# Where a cgroup records this cgroup's own limit and usage. Set once by
# find_cgroup, because every later reading needs both and hunting for the files
# on each call would be the slow part of the poll loop.
CG_MAX_FILE=""
CG_CUR_FILE=""
CG_VERSION=""
find_cgroup() {
local rel
# Inside a container the cgroup namespace makes the top of the tree BE the
# container's own cgroup, so the unqualified path is already the right one.
# On a host it is the root cgroup, which is never limited — hence the second
# attempt via /proc/self/cgroup, which names the slice this shell is in.
if [ -r /sys/fs/cgroup/memory.max ]; then
CG_VERSION=v2
CG_MAX_FILE=/sys/fs/cgroup/memory.max
CG_CUR_FILE=/sys/fs/cgroup/memory.current
elif [ -r /sys/fs/cgroup/memory/memory.limit_in_bytes ]; then
CG_VERSION=v1
CG_MAX_FILE=/sys/fs/cgroup/memory/memory.limit_in_bytes
CG_CUR_FILE=/sys/fs/cgroup/memory/memory.usage_in_bytes
fi
rel=$(awk -F: '$1=="0"{print $3; exit}' /proc/self/cgroup 2>/dev/null || true)
if [ -n "$rel" ] && [ "$rel" != "/" ] && [ -r "/sys/fs/cgroup${rel}/memory.max" ]; then
CG_VERSION=v2
CG_MAX_FILE="/sys/fs/cgroup${rel}/memory.max"
CG_CUR_FILE="/sys/fs/cgroup${rel}/memory.current"
return 0
fi
rel=$(awk -F: '$2 ~ /(^|,)memory(,|$)/{print $3; exit}' /proc/self/cgroup 2>/dev/null || true)
if [ -n "$rel" ] && [ "$rel" != "/" ] \
&& [ -r "/sys/fs/cgroup/memory${rel}/memory.limit_in_bytes" ]; then
CG_VERSION=v1
CG_MAX_FILE="/sys/fs/cgroup/memory${rel}/memory.limit_in_bytes"
CG_CUR_FILE="/sys/fs/cgroup/memory${rel}/memory.usage_in_bytes"
fi
return 0
}
# The cap in MB, or "" when there is none worth reporting. v2 spells unlimited
# "max"; v1 spells it as a number near 2^63, which is why this compares against
# MemTotal rather than testing for a magic value — a "limit" above the machine's
# own memory is not a limit, however it is written.
cgroup_cap_mb() {
local raw cap
[ -n "$CG_MAX_FILE" ] && [ -r "$CG_MAX_FILE" ] || { echo ""; return 0; }
raw=$(cat "$CG_MAX_FILE" 2>/dev/null || echo max)
[ "$raw" = "max" ] && { echo ""; return 0; }
case "$raw" in ''|*[!0-9]*) echo ""; return 0 ;; esac
cap=$((raw / 1024 / 1024))
[ "$cap" -ge "$(mb MemTotal)" ] && { echo ""; return 0; }
echo "$cap"
}
cgroup_used_mb() {
local raw
[ -n "$CG_CUR_FILE" ] && [ -r "$CG_CUR_FILE" ] || { echo ""; return 0; }
raw=$(cat "$CG_CUR_FILE" 2>/dev/null || echo "")
case "$raw" in ''|*[!0-9]*) echo ""; return 0 ;; esac
echo $((raw / 1024 / 1024))
}
# ulimit -v is a per-process address-space cap. It stops YOU long before the box
# does, and because it is inherited from a login shell it is easy to hit without
# knowing it is set.
ulimit_v_mb() {
local v; v=$(ulimit -v 2>/dev/null || echo unlimited)
[ "$v" = "unlimited" ] && { echo ""; return 0; }
case "$v" in ''|*[!0-9]*) echo ""; return 0 ;; esac
echo $((v / 1024))
}
# The number everything else is about: the lowest of the things that can stop
# you. Printed at the end of `status` and used as the sanity bound in `push`.
effective_ceiling_mb() {
local c; c=$(mb MemTotal)
local cap; cap=$(cgroup_cap_mb)
local ul; ul=$(ulimit_v_mb)
[ -n "$cap" ] && [ "$cap" -lt "$c" ] && c="$cap"
[ -n "$ul" ] && [ "$ul" -lt "$c" ] && c="$ul"
echo "$c"
}
# How much room is left RIGHT NOW, from whichever accounting actually governs.
# In a capped container /proc/meminfo describes the host and is worse than
# useless for this — it would report tens of gigabytes free on a box that is one
# allocation from being killed.
headroom_mb() {
local cap used
cap=$(cgroup_cap_mb)
used=$(cgroup_used_mb)
if [ -n "$cap" ] && [ -n "$used" ]; then
echo $(( cap - used ))
else
avail_meminfo_mb
fi
}
# ── status ─────────────────────────────────────────────────────────────────
# /mnt/c/Users can hold several real accounts — a renamed login leaves the old
# directory behind — so picking the first alphabetically is a coin toss. Ask
# Windows, then fall back to whichever profile actually owns a config.
wslconfig_path() {
local profile winpath found
profile=$(cmd.exe /c "echo %USERPROFILE%" 2>/dev/null | tr -d "\r\n" || true)
case "$profile" in
""|*%*) ;;
*) winpath=$(wslpath -u "$profile" 2>/dev/null || true)
if [ -n "$winpath" ] && [ -d "$winpath" ]; then
echo "$winpath/.wslconfig"; return 0
fi ;;
esac
found=$(ls -d /mnt/c/Users/*/.wslconfig 2>/dev/null | head -1 || true)
[ -n "$found" ] && echo "$found"
return 0
}
hogs() {
echo " holding the most:"
ps -eo rss,comm --sort=-rss 2>/dev/null \
| awk 'NR>1 && NR<=6 {printf " %6.0f MB %s\n", $1/1024, $2}'
return 0
}
status() {
local total avail swap_total swap_free cap ul cur
echo "host"
echo " platform $(platform)"
echo " kernel $(uname -r)"
[ -r /etc/os-release ] && \
echo " distro $(sed -n 's/^PRETTY_NAME="\(.*\)"/\1/p' /etc/os-release)"
echo " cpu $(getconf _NPROCESSORS_ONLN 2>/dev/null || echo '?') online, load $(cut -d' ' -f1-3 /proc/loadavg)"
# ── the caps first, because they decide what the totals below are worth ──
echo
echo "caps"
cap=$(cgroup_cap_mb)
if [ -n "$cap" ]; then
cur=$(cgroup_used_mb)
echo " cgroup ${cap} MB (${CG_VERSION}, ${CG_CUR_FILE##*/} says ${cur:-?} MB used)"
echo " ! /proc/meminfo below describes the HOST, not this cgroup."
echo " $(mb MemTotal) MB total is not yours; ${cap} MB is."
elif [ -n "$CG_VERSION" ]; then
echo " cgroup none (${CG_VERSION} present, no memory limit set)"
else
echo " cgroup no memory controller found"
fi
ul=$(ulimit_v_mb)
if [ -n "$ul" ]; then
echo " ! ulimit -v ${ul} MB — a per-process cap, inherited from your shell"
echo " it stops this process long before the machine runs out"
else
echo " ulimit -v unlimited"
fi
# overcommit_memory=0 is the default heuristic: a large allocation is
# granted on a guess, and the reckoning arrives later as an OOM kill rather
# than as a failed malloc. It is why `push` touches every page it asks for.
local om or_
om=$(cat /proc/sys/vm/overcommit_memory 2>/dev/null || echo '?')
or_=$(cat /proc/sys/vm/overcommit_ratio 2>/dev/null || echo '?')
case "$om" in
0) echo " overcommit 0 heuristic — allocations are granted on a guess," ;;
1) echo " overcommit 1 always — every allocation succeeds; the OOM killer is the only limit," ;;
2) echo " overcommit 2 strict (ratio ${or_}%) — allocation fails honestly instead of killing later," ;;
*) echo " overcommit ${om}" ;;
esac
[ "$om" != "?" ] && echo " so RSS is the number to trust, not what a process asked for"
# ── what it says it has ──
total=$(mb MemTotal); avail=$(avail_meminfo_mb)
swap_total=$(mb SwapTotal); swap_free=$(mb SwapFree)
echo
echo "memory"
echo " total ${total} MB"
echo " available ${avail} MB"
echo " swap ${swap_total} MB ($(( swap_total - swap_free )) MB used)"
if [ "$swap_total" -eq 0 ]; then
echo " - no swap: this box has no cushion. It goes from fine to OOM-killed"
echo " with nothing in between, which is the abrupt failure you get in a VM."
fi
# postgres puts its shared buffers in /dev/shm. Docker's default is 64 MB,
# and the resulting failure names neither shm nor the size.
if [ -d /dev/shm ]; then
local shm; shm=$(df -Pm /dev/shm 2>/dev/null | awk 'NR==2{print $2}')
if [ -n "$shm" ]; then
if [ "$shm" -le 64 ]; then
echo " ! /dev/shm ${shm} MB — postgres puts shared memory here and 64 MB"
echo " is docker's default. Raise it with --shm-size when postgres fails."
else
echo " /dev/shm ${shm} MB"
fi
fi
fi
echo
echo "disk"
local d
for d in / /tmp /var/lib/docker; do
[ -d "$d" ] || continue
df -Pm "$d" 2>/dev/null | awk -v p="$d" 'NR==2{printf " %-12s %s MB free of %s MB\n", p, $4, $2}'
done
# kind and Tilt both watch large trees, and the failure mode is silent:
# they simply stop noticing file changes. Cheap to report while we are here.
local w i
w=$(cat /proc/sys/fs/inotify/max_user_watches 2>/dev/null || echo 0)
i=$(cat /proc/sys/fs/inotify/max_user_instances 2>/dev/null || echo 0)
echo
echo "tooling"
echo " inotify watches=$w instances=$i"
if [ "$w" -lt 524288 ] || [ "$i" -lt 512 ]; then
echo " ! low — anything watching files will silently stop seeing changes"
fi
if ! command -v docker >/dev/null 2>&1; then
if [ -S /var/run/docker.sock ]; then
echo " docker socket present, no cli"
else
echo " docker not installed"
fi
elif docker info >/dev/null 2>&1; then
local n
n=$(docker ps -q 2>/dev/null | wc -l)
echo " docker $(docker version --format '{{.Server.Version}}' 2>/dev/null), ${n} container(s) running"
else
echo " ! docker cli present but the daemon is unreachable"
fi
# WSL keeps its cap on the Windows side, in a file this shell can read but
# not usefully apply — the change costs a full VM restart. Report it, and
# report the commonest mistake, which is editing it and not restarting.
if is_wsl; then
local cfg conf conf_mb n
cfg=$(wslconfig_path)
echo
echo "wsl"
if [ -z "$cfg" ]; then
echo " ! cannot tell which Windows profile owns .wslconfig"
else
echo " config $cfg"
conf=$(configured_memory "$cfg")
if [ -n "$conf" ]; then
conf_mb=$(to_mb "$conf")
echo " configured $conf (${conf_mb} MB), booted ${total} MB"
# The VM reports a little less than allocated; 15% covers the
# kernel without calling every healthy machine a mismatch.
if [ -n "$conf_mb" ] && [ "$total" -lt $(( conf_mb * 85 / 100 )) ]; then
echo " ! configured ${conf_mb} MB but booted ${total} MB — not applied yet."
echo " From a WINDOWS terminal: wsl --shutdown then start the distro again."
fi
else
echo " configured no memory= set (WSL defaults to 50% of host RAM, or 8 GB,"
echo " whichever is less). To raise it, add on the Windows side:"
echo " [wsl2]"
echo " memory=8GB"
echo " then from a WINDOWS terminal: wsl --shutdown"
fi
n=$(ls "$cfg".*.bak 2>/dev/null | wc -l)
if [ "$n" -gt 0 ]; then
echo " backups $n (newest: $(ls -t "$cfg".*.bak 2>/dev/null | head -1))"
fi
fi
else
echo
echo " - native linux: no VM allocation to raise. If memory is tight the levers"
echo " are freeing something or adding swap."
fi
echo
echo "effective ceiling $(effective_ceiling_mb) MB"
echo " the lowest of MemTotal, the cgroup cap and ulimit -v. What the box"
echo " claims. 'push' measures what it will actually hand over."
[ "$avail" -lt $(( total / 5 )) ] && { echo; hogs; }
return 0
}
# ── .wslconfig ─────────────────────────────────────────────────────────────
require_wsl() {
if ! is_wsl; then
echo "$1 acts on .wslconfig, which only exists under WSL." >&2
echo "This is native Linux — there is no VM allocation to save or roll back." >&2
echo "Use 'status' to see what the machine actually has." >&2
exit 1
fi
}
# backup and restore act on the file, so unlike status they must not guess.
wslconfig_required() {
local cfg; cfg=$(wslconfig_required)
if [ -z "$cfg" ]; then
echo "cannot tell which Windows profile owns .wslconfig. Candidates:" >&2
ls -d /mnt/c/Users/*/ 2>/dev/null \
| grep -viE "/(All Users|Default|Default User|Public)/$" | sed "s/^/ /" >&2
exit 1
fi
echo "$cfg"
}
configured_memory() {
[ -r "$1" ] || { echo ""; return; }
sed -n 's/^[[:space:]]*memory[[:space:]]*=[[:space:]]*//p' "$1" | tail -1 | tr -d '[:space:]'
}
# "9GB" / "8192MB" / "9G" -> MB, so it can be compared with /proc/meminfo.
to_mb() {
local v="${1^^}" n
n=$(echo "$v" | tr -dc '0-9')
[ -n "$n" ] || { echo ""; return; }
case "$v" in
*GB|*G) echo $(( n * 1024 )) ;;
*MB|*M) echo "$n" ;;
*) echo $(( n / 1024 / 1024 )) ;;
esac
}
backup() {
require_wsl backup
local cfg dest
cfg=$(wslconfig_required)
[ -r "$cfg" ] || { echo "nothing to back up: $cfg does not exist" >&2; exit 1; }
# Timestamped and never overwritten: a backup that can destroy itself on a
# second run is not a backup.
dest="${cfg}.$(date +%Y%m%d-%H%M%S).bak"
cp "$cfg" "$dest"
echo "backed up $dest"
echo
echo "Edit $cfg by hand, then from a WINDOWS terminal: wsl --shutdown"
}
restore() {
require_wsl restore
local cfg newest count
cfg=$(wslconfig_required)
newest=$(ls -t "$cfg".*.bak 2>/dev/null | head -1 || true)
[ -n "$newest" ] || { echo "no backups found beside $cfg" >&2; exit 1; }
echo "restoring $newest"
echo " -> $cfg"
echo
# Newest is the right default — undo the last edit — but if you backed up
# *after* editing, the state you want is older. Show the rest so a no-op
# restore is obviously a no-op rather than a mystery.
count=$(ls "$cfg".*.bak 2>/dev/null | wc -l)
if [ "$count" -gt 1 ]; then
echo "$count backups exist, newest first:"
ls -t "$cfg".*.bak | sed 's/^/ /'
echo " (restoring the newest; copy another by hand to pick an older one)"
echo
fi
if [ -r "$cfg" ]; then
echo "what changes:"
if diff "$cfg" "$newest" > /tmp/mem.diff 2>&1 && [ ! -s /tmp/mem.diff ]; then
echo " nothing — that backup is identical to the current config"
else
sed 's/^/ /' /tmp/mem.diff
fi
rm -f /tmp/mem.diff
echo
fi
printf "proceed? [y/N] "
read -r reply
case "$reply" in
y|Y|yes|Yes) ;;
*) echo "left alone"; return 0 ;;
esac
cp "$newest" "$cfg"
echo "restored. From a WINDOWS terminal: wsl --shutdown"
}
# ── push ───────────────────────────────────────────────────────────────────
STATE=""
CHILD=""
cleanup() {
if [ -n "$CHILD" ] && kill -0 "$CHILD" 2>/dev/null; then
kill -KILL "$CHILD" 2>/dev/null || true
wait "$CHILD" 2>/dev/null || true
fi
[ -n "$STATE" ] && rm -f "$STATE"
return 0
}
# The child allocates and stops itself; the parent only watches. That split is
# the point: under --to-oom the allocating process is expected to be killed, and
# something has to survive to say how far it got.
allocator() {
# Raise our own OOM score to the maximum so the kernel picks THIS process
# first. Raising needs no privilege (only lowering does). Without it, the
# kernel is free to choose your shell, your ssh session or dockerd — on a
# box you are still using, that is not an acceptable coin toss.
echo 1000 > "/proc/$BASHPID/oom_score_adj" 2>/dev/null || true
local arr=() held=0 i=0 rss swapped avail first_swap=0
local bytes=$((STEP_MB * 1024 * 1024))
local swap_used_start
swap_used_start=$(( $(mb SwapTotal) - $(mb SwapFree) ))
while :; do
# Written STRAIGHT INTO the array element. The obvious spelling —
# build one chunk and `arr+=("$chunk")` — costs three copies per step,
# not one: the template stays resident, expanding "$chunk" makes a
# temporary word, and the append makes the element. A 128 MB step then
# needs 384 MB transiently, and on a small box it is killed on the
# first append while reporting a third of the true ceiling.
#
# printf -v into a subscript also means every page is written, so it is
# resident rather than merely promised — the only kind of allocation
# that measures anything under heuristic overcommit.
printf -v "arr[$i]" '%*s' "$bytes" ''
i=$((i + 1)); held=$((held + STEP_MB))
rss=$(awk '/^VmRSS:/{print int($2/1024)}' "/proc/$BASHPID/status" 2>/dev/null || echo 0)
avail=$(headroom_mb)
swapped=$(( $(mb SwapTotal) - $(mb SwapFree) - swap_used_start ))
[ "$swapped" -lt 0 ] && swapped=0
printf '%8s MB held rss %7s MB headroom %7s MB swap +%s MB\n' \
"$held" "$rss" "$avail" "$swapped"
printf '%s %s %s %s\n' "$held" "$rss" "$avail" "$swapped" >> "$STATE"
# Worth calling out separately from the ceiling: this is where the box
# stops being fast and starts being unusable, which for a scheduler is
# a different and earlier problem than being killed.
if [ "$swapped" -gt 0 ] && [ "$first_swap" -eq 0 ]; then
first_swap=$held
echo " - first swap page at ${held} MB — past here it works but crawls"
echo "swapat $held" >> "$STATE"
fi
if [ -n "$TO_MB" ] && [ "$held" -ge "$TO_MB" ]; then
echo "stop reached-the-cap" >> "$STATE"; return 0
fi
if [ "$TO_OOM" = no ] && [ "$avail" -lt "$FLOOR_MB" ]; then
echo "stop floor" >> "$STATE"; return 0
fi
done
}
push() {
local total ceiling rc=0 last held rss swapat stop
total=$(mb MemTotal)
ceiling=$(effective_ceiling_mb)
# A step is worth about a sixty-fourth of the ceiling: enough resolution to
# find the edge, few enough lines to read, and small enough that the
# transient cost of one allocation never dominates a small box. A fixed
# size cannot do all three — 128 MB is fine on 16 GB and absurd on 512 MB.
if [ "$STEP_EXPLICIT" = no ]; then
STEP_MB=$(( ceiling / 64 ))
[ "$STEP_MB" -lt 4 ] && STEP_MB=4
[ "$STEP_MB" -gt 256 ] && STEP_MB=256
fi
# Stop with a cushion rather than riding it to the kill. How big a cushion
# depends on what it is protecting. Under a cgroup cap, running out kills
# only this container's own processes, so it need cover no more than the
# shell that prints the result — and a 512 MB cushion on a 1 GB box would
# halve the answer. On a host there is everything else to protect, and the
# OOM killer does not promise to pick the process that caused the problem.
if [ -n "$(cgroup_cap_mb)" ]; then FLOOR_MB=64; else FLOOR_MB=512; fi
[ $(( ceiling / 20 )) -gt "$FLOOR_MB" ] && FLOOR_MB=$(( ceiling / 20 ))
STATE=$(mktemp "${TMPDIR:-/tmp}/rigmini.XXXXXX")
trap cleanup EXIT
# INT kills the child and lets the summary below print anyway, so an
# impatient Ctrl-C still tells you how far it got — and, more importantly,
# still gives the memory back.
trap 'echo; echo " interrupted"; echo "stop interrupted" >> "$STATE"; [ -n "$CHILD" ] && kill -KILL "$CHILD" 2>/dev/null || true' INT
echo "push"
echo " step ${STEP_MB} MB per allocation, every page touched"
echo " ceiling ${ceiling} MB claimed"
if [ -n "$TO_MB" ]; then
echo " stopping at ${TO_MB} MB (--to)"
elif [ "$TO_OOM" = yes ]; then
echo " ! stopping only when the kernel stops it (--to-oom)"
echo " the allocating child is marked as the preferred OOM victim,"
echo " but nothing about an OOM kill is entirely polite. Not on a box"
echo " running anything you mind losing."
else
echo " stopping when headroom drops below ${FLOOR_MB} MB"
fi
echo
allocator &
CHILD=$!
wait "$CHILD" || rc=$?
CHILD=""
trap - INT
last=$(grep -E '^[0-9]' "$STATE" 2>/dev/null | tail -1 || true)
held=$(echo "$last" | awk '{print $1}')
rss=$(echo "$last" | awk '{print $2}')
swapat=$(awk '/^swapat/{print $2}' "$STATE" 2>/dev/null | head -1 || true)
stop=$(awk '/^stop/{print $2}' "$STATE" 2>/dev/null | head -1 || true)
echo
if [ -z "$held" ]; then
echo " ! nothing was allocated. Even one ${STEP_MB} MB chunk failed —"
echo " try a smaller --step, or check ulimit -v in 'status'."
return 1
fi
echo " reached ${rss:-$held} MB resident"
[ -n "$swapat" ] && echo " swapping from ${swapat} MB"
case "$stop" in
reached-the-cap)
echo " outcome stopped at the --to cap, not at a limit."
echo " The box held ${TO_MB} MB without complaint; there is more." ;;
floor)
echo " outcome stopped with a cushion intact, by choice."
echo " The real ceiling is higher — --to-oom finds it, at the"
echo " cost of an actual OOM kill." ;;
interrupted)
echo " outcome interrupted at ${rss:-$held} MB — where you stopped it,"
echo " not where the box did." ;;
*)
# No stop line means the child did not decide to stop: it was ended.
if [ "$rc" -ge 128 ]; then
echo " outcome the child was killed (signal $((rc - 128))) at ${rss:-$held} MB."
elif [ "$rc" -ne 0 ]; then
echo " outcome the allocation failed at ${rss:-$held} MB (exit ${rc})."
echo " bash could not get the next chunk — an honest malloc"
echo " failure rather than a kill. That is the strict-overcommit"
echo " or ulimit path."
else
echo " outcome ended at ${rss:-$held} MB."
fi
local ev
ev=$(dmesg 2>/dev/null | tail -80 | grep -iE 'oom-kill|killed process' | tail -1 || true)
if [ -n "$ev" ]; then
echo " kernel ${ev#*] }"
else
echo " - dmesg is unreadable here (dmesg_restrict, or no privilege),"
echo " so the kill cannot be confirmed from this side. The number stands."
fi ;;
esac
# The gap between the claim and the measurement is the finding — but only
# when the BOX chose where to stop. An empty $stop means the child was ended
# rather than deciding to end; anything else (--to, the floor) is a stop we
# asked for, and flagging those as short of the ceiling would put a warning
# on every deliberately small run.
local got="${rss:-$held}"
echo
if [ -z "$stop" ] && [ "$got" -lt $(( ceiling * 70 / 100 )) ]; then
echo " ! claimed ${ceiling} MB, gave up ${got} MB — under 70% of it."
echo " Something is taking the difference. 'status' names the candidates:"
echo " a cgroup cap, ulimit -v, or memory already resident."
fi
return 0
}
# ── all ────────────────────────────────────────────────────────────────────
all() {
status
echo
echo "────────────────────────────────────────────────────────────"
echo
push
local got budget_mb ceiling
load_config
if [ -n "$BUDGET_GB" ]; then
budget_mb=$(( BUDGET_GB * 1024 ))
else
budget_mb=$(( NODES * NODE_MB ))
fi
ceiling=$(effective_ceiling_mb)
got=$(grep -E '^[0-9]' "$STATE" 2>/dev/null | tail -1 | awk '{print $2}' || true)
[ -n "$got" ] || got=0
echo
echo "verdict"
if [ -n "$BUDGET_GB" ]; then
echo " budget ${budget_mb} MB (--budget)"
else
# rig's own figure for this profile: nodes times what one node costs.
# Addons carry no memory figure in rig yet, so this is the cluster alone
# and whatever you deploy comes on top. --budget once you know that too.
echo " budget ${budget_mb} MB — profile ${PROFILE_NAME}: ${NODES} node(s) x ${NODE_MB} MB,"
echo " the cluster alone; your workload comes on top (--budget GB)"
fi
echo " measured ${got} MB handed over"
if [ "$got" -ge "$budget_mb" ]; then
echo " fits, with $(( got - budget_mb )) MB spare."
if [ "$got" -lt $(( budget_mb * 130 / 100 )) ]; then
echo " - under 30% spare is thin once a workload runs on top: memory use"
echo " is spiky, and the spikes are what get killed."
fi
else
echo " ! short by $(( budget_mb - got )) MB."
if [ "$ceiling" -ge "$budget_mb" ]; then
echo " The box CLAIMS enough (${ceiling} MB) but did not deliver it."
echo " Free something, or read the caps section again."
else
echo " The box does not have it to give. A bigger machine, or a profile"
echo " with fewer nodes."
fi
fi
return 0
}
# ── main ───────────────────────────────────────────────────────────────────
parse_flags() {
while [ $# -gt 0 ]; do
case "$1" in
--to) TO_MB=$(( ${2:?--to needs a value in GB} * 1024 )); shift 2 ;;
--to-mb) TO_MB="${2:?--to-mb needs a value in MB}"; shift 2 ;;
--step) STEP_MB="${2:?--step needs a value in MB}"; STEP_EXPLICIT=yes; shift 2 ;;
--to-oom) TO_OOM=yes; shift ;;
--budget) BUDGET_GB="${2:?--budget needs a value in GB}"; BUDGET_EXPLICIT=yes; shift 2 ;;
*) echo "unknown argument: $1" >&2; exit 1 ;;
esac
done
if [ "$TO_OOM" = yes ] && [ -n "$TO_MB" ]; then
echo "--to and --to-oom contradict each other: one stops early, the other" >&2
echo "refuses to stop at all. Pick one." >&2
exit 1
fi
return 0
}
require_linux
find_cgroup
cmd="${1:-status}"
[ $# -gt 0 ] && shift
case "$cmd" in
status) parse_flags "$@"; status ;;
push) parse_flags "$@"; push ;;
all) parse_flags "$@"; all ;;
backup) backup ;;
restore) restore ;;
*) echo "usage: $0 [status|push|all|backup|restore]" >&2
echo " push [--to GB] [--to-mb MB] [--step MB] [--to-oom]" >&2
echo " all [--budget GB]" >&2
exit 1 ;;
esac