ced4568andClaude Sonnet 5
60fbf0c385
Pre-Phase-1 platform work, approved and tested earlier but not yet committed: - Terminal banner: "RootNode Academy Lab — node: k8s-lab", upstream KubeKosh attribution left untouched in footer/README/LICENSE. - RootNode curriculum mode: scenarios/rootnode-path.json (Foundation -> Workloads -> Networking -> Configuration -> Troubleshooting -> Real Ops -> Capstone), built from existing scenario content grouped by category, no new scenarios invented. New GET /api/curriculum/path endpoint. - Student roster + per-student progress: instructor-roster, pick-your-name login (no password), students/environments-adjacent progress table migrated to a (student_id, scenario_id) composite key so practice progress and exam sessions are isolated per student instead of one global bucket. New /api/roster, /api/login endpoints. - scenarios/data/*.json: added isolation_type metadata (shared_namespace vs ephemeral_cluster) from an audit of which scenarios execute cluster-scoped or node-level commands. This was Tier-1-isolation groundwork that got superseded same-day by the full-ephemeral-per-student architecture (see docs/LAB_ARCHITECTURE.md) — the field is kept as descriptive metadata only, per the note now in scenarios/SCHEMA.md. Not wasted: it's an accurate audit of which scenarios touch cluster-scoped resources, useful independent of isolation model. - .gitignore added (node_modules/, frontend/dist/, *.db, /data/, .env) — none existed before; without it, npm installs during testing would have landed in a commit. Known limitation still open: no frontend UI for any of this yet (login screen, roster-add form, curriculum view) — API-only. No auth on the roster-add endpoint. Co-Authored-By: Claude Sonnet 5 <[email protected]>
61 lines
2.8 KiB
JSON
61 lines
2.8 KiB
JSON
{
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"id": "pv-pvc-mount",
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"title": "Persistent Storage with PV and PVC",
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"category": "Storage",
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"isolation_type": "shared_namespace",
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"difficulty": "Medium",
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"type": "task",
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"weight": 7,
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"description": "## Attach Persistent Storage to a Pod\n\nA stateful application needs data to survive pod restarts.\n\n**Your tasks:**\n1. Create a **PersistentVolumeClaim** named `local-pvc` in the `default` namespace requesting `200Mi` with:\n - Access mode: `ReadWriteOnce`\n - StorageClass: `local-path` (available in this cluster via k3s)\n2. Create a **Pod** named `storage-pod` using image `nginx:1.25` that mounts the PVC at `/data`\n3. Write a file inside the pod at `/data/hello.txt` with content `hello-k8s`",
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"hints": [
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{
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"title": "Create the PVC",
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"body": "Use storageClassName: local-path to use the k3s built-in dynamic provisioner. No PV needs to be created manually.",
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"command": "cat <<EOF | kubectl apply -f -\napiVersion: v1\nkind: PersistentVolumeClaim\nmetadata:\n name: local-pvc\nspec:\n accessModes: [ReadWriteOnce]\n storageClassName: local-path\n resources:\n requests:\n storage: 200Mi\nEOF"
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},
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{
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"title": "Create the Pod with PVC mount",
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"body": "Reference the PVC by name under volumes and mount it in the container.",
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"command": "cat <<EOF | kubectl apply -f -\napiVersion: v1\nkind: Pod\nmetadata:\n name: storage-pod\nspec:\n containers:\n - name: app\n image: nginx:1.25\n volumeMounts:\n - name: data\n mountPath: /data\n volumes:\n - name: data\n persistentVolumeClaim:\n claimName: local-pvc\nEOF"
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},
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{
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"title": "Write file into the pod",
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"body": "Use kubectl exec to write a file into the mounted volume.",
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"command": "kubectl exec storage-pod -- sh -c 'echo hello-k8s > /data/hello.txt'"
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}
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],
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"setup_commands": [],
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"validation": {
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"description": "Validates PV, PVC binding, pod running, and file written to the volume.",
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"commands": [
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{
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"description": "PVC local-pvc is Bound",
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"command": "kubectl get pvc local-pvc -o jsonpath='{.status.phase}'",
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"expected_output": "Bound",
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"match": "exact"
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},
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{
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"description": "Pod 'storage-pod' is Running",
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"command": "kubectl get pod storage-pod -o jsonpath='{.status.phase}'",
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"expected_output": "Running",
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"match": "exact"
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},
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{
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"description": "File /data/hello.txt contains 'hello-k8s'",
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"command": "kubectl exec storage-pod -- cat /data/hello.txt",
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"expected_output": "hello-k8s",
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"match": "contains"
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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 storage-pod --ignore-not-found --grace-period=0 --force"
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},
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{
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"command": "kubectl delete pvc local-pvc --ignore-not-found"
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}
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]
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}
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