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 This was Tier-1-isolation groundwork that got superseded same-day by the full-ephemeral-per-student architecture (see docs/LAB_ARCHITECTURE.md) — the field is kept as descriptive metadata only, per the note now in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]>
53 lines
2.3 KiB
JSON
53 lines
2.3 KiB
JSON
{
|
|
"id": "kubectl-patch-basics",
|
|
"title": "Patching Resources with kubectl patch",
|
|
"category": "Core Concepts",
|
|
"isolation_type": "shared_namespace",
|
|
"difficulty": "Medium",
|
|
"type": "task",
|
|
"weight": 5,
|
|
"description": "## Patching Resources with `kubectl patch`\n\n`kubectl patch` lets you surgically update specific fields of a live resource without editing the full manifest. It supports three patch strategies: `merge`, `json`, and `strategic`.\n\n**Your task:**\n\nA Deployment named `patchme` is running in the `default` namespace with 1 replica.\n\n1. Use `kubectl patch` to update its replica count to **3**\n2. Use `kubectl patch` to add a label `env=staging` to the Deployment's **pod template** (`.spec.template.metadata.labels`)\n\n```bash\n# Verify:\nkubectl get deploy patchme -o jsonpath='{.spec.replicas}'\nkubectl get deploy patchme -o jsonpath='{.spec.template.metadata.labels}' \n```",
|
|
"hints": [
|
|
{
|
|
"title": "Patch replicas using merge patch",
|
|
"body": "Use `--type=merge` with a JSON snippet targeting the field you want to change.",
|
|
"command": "kubectl patch deployment patchme --type=merge -p '{\"spec\":{\"replicas\":3}}'"
|
|
},
|
|
{
|
|
"title": "Patch pod template labels",
|
|
"body": "To add labels to the pod template, target spec.template.metadata.labels in your patch body.",
|
|
"command": "kubectl patch deployment patchme --type=merge -p '{\"spec\":{\"template\":{\"metadata\":{\"labels\":{\"env\":\"staging\"}}}}}'"
|
|
}
|
|
],
|
|
"setup_commands": [
|
|
{
|
|
"command": "kubectl create deployment patchme --image=nginx:alpine --replicas=1 2>/dev/null || true"
|
|
},
|
|
{
|
|
"command": "kubectl rollout status deployment/patchme --timeout=60s"
|
|
}
|
|
],
|
|
"validation": {
|
|
"commands": [
|
|
{
|
|
"description": "Deployment 'patchme' has 3 replicas",
|
|
"command": "kubectl get deployment patchme -o jsonpath='{.spec.replicas}'",
|
|
"expected_output": "3",
|
|
"match": "exact"
|
|
},
|
|
{
|
|
"description": "Pod template has label env=staging",
|
|
"command": "kubectl get deployment patchme -o jsonpath='{.spec.template.metadata.labels.env}'",
|
|
"expected_output": "staging",
|
|
"match": "exact"
|
|
}
|
|
]
|
|
},
|
|
"default_namespace": "default",
|
|
"teardown_commands": [
|
|
{
|
|
"command": "kubectl delete deployment patchme --ignore-not-found"
|
|
}
|
|
]
|
|
}
|