refactor(scenarios): split monolithic configuration into individual files

- Split `scenarios/scenarios.json` into individual JSON files under `scenarios/data/` named `<scenario-id>.json` - Split `scenarios/bundles.json` into individual JSON files under `scenarios/bundles/` named `<bundle-id>.json` - Updated `backend/server.js` to dynamically load scenario and bundle files from their respective directories - Updated documentation in `scenarios/SCHEMA.md` and `README.md` to reflect the new repository layout and contributor workflow Signed-off-by: Abhinav Sinha <[email protected]>
2026-06-15 07:52:47 +05:30
parent 2104c5fea6
commit 124e5276d4
94 changed files with 4256 additions and 4217 deletions
@@ -0,0 +1,59 @@
+{
+  "id": "endpoint-fix-task",
+  "title": "Fix a Broken Service Selector",
+  "category": "Troubleshooting",
+  "difficulty": "Medium",
+  "type": "task",
+  "weight": 7,
+  "description": "## Fix a Broken Service Selector\n\nA service `my-svc` has been created but no traffic reaches the pods. The pods are labelled `app=backend`, but the service selector is misconfigured.\n\n**Your task:**\n\nFix the `my-svc` service selector so it correctly targets the `backend` pods.\n\n```bash\n# Investigate:\nkubectl describe service my-svc\nkubectl get endpoints my-svc\nkubectl get pods --show-labels\n```",
+  "hints": [
+    {
+      "title": "Identify the mismatch",
+      "body": "Check what label the pods actually carry, then compare it against the service selector.",
+      "command": "kubectl get pods --show-labels && kubectl get service my-svc -o jsonpath='{.spec.selector}'"
+    },
+    {
+      "title": "Patch the service selector",
+      "body": "The pods carry `app=backend` but the service selector says `app=wrong-label`. Use `kubectl patch` to point the selector at the correct label.",
+      "command": "kubectl patch service my-svc --type=json -p='[{\"op\":\"replace\",\"path\":\"/spec/selector/app\",\"value\":\"backend\"}]'"
+    },
+    {
+      "title": "Verify endpoints are populated",
+      "body": "After fixing the selector, Kubernetes will automatically update the endpoint slice. Confirm the service now has live pod addresses.",
+      "command": "kubectl get endpoints my-svc"
+    }
+  ],
+  "setup_commands": [
+    {
+      "command": "kubectl create deployment backend --image=nginx:alpine --replicas=2 2>/dev/null || true"
+    },
+    {
+      "command": "kubectl apply -f - <<EOF\napiVersion: v1\nkind: Service\nmetadata:\n  name: my-svc\nspec:\n  selector:\n    app: wrong-label\n  ports:\n  - port: 80\n    targetPort: 80\nEOF"
+    }
+  ],
+  "validation": {
+    "commands": [
+      {
+        "description": "Service 'my-svc' selector is app=backend",
+        "command": "kubectl get service my-svc -o jsonpath='{.spec.selector.app}'",
+        "expected_output": "backend",
+        "match": "exact"
+      },
+      {
+        "description": "Endpoints exist for my-svc",
+        "command": "kubectl get endpoints my-svc -o jsonpath='{.subsets[0].addresses[0].ip}' 2>/dev/null | grep -v '^$' || echo empty",
+        "expected_output": "empty",
+        "match": "not_contains"
+      }
+    ]
+  },
+  "default_namespace": "default",
+  "teardown_commands": [
+    {
+      "command": "kubectl delete deployment backend --ignore-not-found"
+    },
+    {
+      "command": "kubectl delete svc my-svc --ignore-not-found"
+    }
+  ]
+}