rig major updates

rig/examples/data/k8s/base/items-api.yaml

@@ -0,0 +1,95 @@
+# The simulator: a stub of the API the DAG reads, faithful to the wire (its field
+# names are the API's, not the app's). Same shape as the starter's example-mock.
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: items-api-stub
+data:
+  routes.json: |
+    {
+      "/health":   {"status": 200, "body": {"status": "ok"}},
+      "/v1/items": {"status": 200, "body": {"items": [
+        {"id": "a-100", "name": "anvil",  "price": {"amount_cents": 1999, "currency": "USD"}},
+        {"id": "b-200", "name": "bucket", "price": {"amount_cents": 450,  "currency": "USD"}},
+        {"id": "c-300", "name": "crate",  "price": {"amount_cents": 1200, "currency": "USD"}}
+      ]}}
+    }
+  serve.py: |
+    import json, os
+    from http.server import BaseHTTPRequestHandler, HTTPServer
+
+    ROUTES = json.load(open("/etc/stub/routes.json"))
+    NAME = os.environ.get("STUB_NAME", "stub")
+
+    class H(BaseHTTPRequestHandler):
+        def do_GET(self):
+            r = ROUTES.get(self.path)
+            if r is None:
+                self.send_response(404)
+                self.end_headers()
+                self.wfile.write(json.dumps(
+                    {"error": "no canned route", "stub": NAME, "path": self.path}
+                ).encode())
+                return
+            body = json.dumps(r["body"]).encode()
+            self.send_response(r["status"])
+            self.send_header("Content-Type", "application/json")
+            self.send_header("X-Mocked-By", NAME)
+            self.end_headers()
+            self.wfile.write(body)
+
+        def log_message(self, fmt, *args):
+            print("%s %s" % (NAME, fmt % args), flush=True)
+
+    HTTPServer(("0.0.0.0", 8080), H).serve_forever()
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: items-api
+  labels:
+    app: items-api
+    rig.component/impl: mock
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: items-api
+  template:
+    metadata:
+      labels:
+        app: items-api
+    spec:
+      containers:
+        - name: stub
+          image: python:3.12-slim
+          command: ["python3", "/etc/stub/serve.py"]
+          env:
+            - name: STUB_NAME
+              value: items-api
+          ports:
+            - containerPort: 8080
+          volumeMounts:
+            - name: stub
+              mountPath: /etc/stub
+          readinessProbe:
+            httpGet: { path: /health, port: 8080 }
+            initialDelaySeconds: 2
+          resources:
+            requests: { memory: 32Mi, cpu: 10m }
+            limits:   { memory: 64Mi }
+      volumes:
+        - name: stub
+          configMap:
+            name: items-api-stub
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: items-api
+spec:
+  selector:
+    app: items-api
+  ports:
+    - port: 80
+      targetPort: 8080