Abhinav Sinha
124e5276d4
- 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]>
52 lines
2.6 KiB
JSON
52 lines
2.6 KiB
JSON
{
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"id": "emptydir-pod",
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"title": "Shared emptyDir Volume Between Containers",
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"category": "Storage",
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"difficulty": "Easy",
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"type": "task",
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"weight": 5,
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"description": "## Shared emptyDir Volume\n\nAn `emptyDir` volume is created when a Pod is assigned to a node and exists as long as the Pod runs. It is ideal for sharing data between containers in the same pod (e.g., sidecar patterns).\n\n**Your task:**\n\nCreate a Pod named `shared-data` with two containers:\n1. **writer** (`busybox:1.36`) — writes `hello-kube` to `/shared/message.txt` then sleeps\n2. **reader** (`busybox:1.36`) — reads and prints `/shared/message.txt` then sleeps\n\nBoth containers mount an `emptyDir` volume at `/shared`.",
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"hints": [
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{
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"title": "emptyDir shared volume manifest",
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"body": "Define a single volume of type `emptyDir: {}` and mount it in both containers under the same path.",
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"command": "cat <<EOF | kubectl apply -f -\napiVersion: v1\nkind: Pod\nmetadata:\n name: shared-data\nspec:\n containers:\n - name: writer\n image: busybox:1.36\n command: [\"sh\",\"-c\",\"echo hello-kube > /shared/message.txt && sleep 3600\"]\n volumeMounts:\n - name: shared-vol\n mountPath: /shared\n - name: reader\n image: busybox:1.36\n command: [\"sh\",\"-c\",\"sleep 5 && cat /shared/message.txt && sleep 3600\"]\n volumeMounts:\n - name: shared-vol\n mountPath: /shared\n volumes:\n - name: shared-vol\n emptyDir: {}\nEOF"
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}
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],
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"setup_commands": [],
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"validation": {
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"commands": [
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{
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"description": "Pod 'shared-data' exists",
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"command": "kubectl get pod shared-data -o jsonpath='{.metadata.name}'",
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"expected_output": "shared-data",
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"match": "exact"
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},
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{
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"description": "Pod has 2 containers",
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"command": "kubectl get pod shared-data -o jsonpath='{range .spec.containers[*]}{.name}{\"\\n\"}{end}'",
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"expected_output": "writer",
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"match": "contains"
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},
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{
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"description": "Volume type is emptyDir",
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"command": "kubectl get pod shared-data -o jsonpath='{.spec.volumes[0].emptyDir}'",
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"expected_output": "{}",
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"match": "contains"
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},
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{
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"description": "Writer container mounts the shared volume",
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"command": "kubectl get pod shared-data -o jsonpath='{.spec.containers[0].volumeMounts[0].mountPath}'",
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"expected_output": "/shared",
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"match": "exact"
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}
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]
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},
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"default_namespace": "default",
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"teardown_commands": [
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{
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"command": "kubectl delete pod shared-data --ignore-not-found --grace-period=0 --force"
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}
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]
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}
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