berth init

berth/ctrl/host.sh

@@ -0,0 +1,63 @@
+#!/usr/bin/env bash
+# The remote box — the other half of the inventory.
+#
+# Usage:
+#   ./host.sh status|ports|services
+#
+# Announces what it would run over `ssh $HOST` and does not run it. Always the
+# ssh alias, never a hostname: there is no `Host mcrn.ar` block, so a bare
+# hostname offers every agent key and trips MaxAuthTries.
+
+set -euo pipefail
+cd "$(dirname "$0")"
+
+source ./lib/config.sh
+source ./lib/estate.sh
+load_config
+
+guard_alias() {
+    if [[ "$HOST" == *.* ]]; then
+        echo "HOST='$HOST' is a hostname, not a ~/.ssh/config alias. Refusing." >&2
+        exit 1
+    fi
+}
+
+announce_batch() {
+    echo "would run, over 'ssh $HOST':"
+    printf '  %s\n' "$@"
+    echo
+    echo "read-only, and NOT run. Announce-first applies to EACH batch, not"
+    echo "once per session — so the commands can be read and"
+    echo "learned rather than scrolled past."
+}
+
+guard_alias
+case "${1:-status}" in
+    status)
+        announce_batch \
+            "uname -a; uptime; df -h /" \
+            "docker ps --format '{{.Names}}\t{{.Image}}\t{{.Ports}}'" \
+            "docker network inspect gateway --format '{{range .Containers}}{{.Name}} {{end}}'" \
+            "systemctl list-units --type=service --state=running --no-pager" \
+            "systemctl list-timers --no-pager"
+        echo
+        echo "sudo-only, over 'ssh $HOST_ADMIN' and only where genuinely needed:"
+        echo "  wg show           # the WireGuard peers that exist nowhere in the tree"
+        ;;
+    ports)
+        announce_batch "ss -ltnp"
+        echo "the estate declares these firewall rules:"
+        estate_get "firewall" | python3 -c '
+import json,sys
+for r in json.load(sys.stdin):
+    print("  %-6s %-5s %s" % (r["port"], r.get("proto","tcp"), r.get("desc","")))'
+        ;;
+    services)
+        announce_batch "docker compose -f ~/ppl/gateway/docker-compose.yml ps"
+        echo "the estate declares $(estate_services "$TARGET" | grep -c . ) service(s) for target '$TARGET'."
+        echo "the gateway compose declares 8. The difference is sibling repos'"
+        echo "stacks joining the shared 'gateway' network — intended design, but"
+        echo "nothing in the tree lists it. The inventory produces that list."
+        ;;
+    *) echo "usage: $0 [status|ports|services]" >&2; exit 1 ;;
+esac