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 This was Tier-1-isolation groundwork that got superseded same-day by the full-ephemeral-per-student architecture (see docs/LAB_ARCHITECTURE.md) — the field is kept as descriptive metadata only, per the note now in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]>
41 lines
1.7 KiB
JSON
41 lines
1.7 KiB
JSON
{
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"id": "cks-network-policy",
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"title": "Default Deny Network Policy",
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"category": "Network Security",
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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": 5,
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"description": "## Network Policies\n\nIn a zero-trust architecture, you should deny all traffic by default and explicitly allow what is needed.\n\n**Your task:**\n\nCreate a NetworkPolicy named `default-deny-all` in the `default` namespace that denies all ingress and egress traffic for all pods in the namespace.\n\n```bash\n# Verify your policy:\nkubectl get networkpolicy default-deny-all\n```",
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"hints": [
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{
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"title": "Default Deny YAML",
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"body": "Use a podSelector with an empty matchLabels `{}` to select all pods, and provide empty lists for ingress and egress.",
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"command": "cat <<EOF | kubectl apply -f -\napiVersion: networking.k8s.io/v1\nkind: NetworkPolicy\nmetadata:\n name: default-deny-all\n namespace: default\nspec:\n podSelector: {}\n policyTypes:\n - Ingress\n - Egress\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": "NetworkPolicy default-deny-all exists",
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"command": "kubectl get networkpolicy default-deny-all -o jsonpath='{.metadata.name}'",
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"expected_output": "default-deny-all",
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"match": "exact"
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},
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{
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"description": "Policy applies to all pods (empty podSelector)",
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"command": "kubectl get networkpolicy default-deny-all -o jsonpath='{.spec.podSelector.matchLabels}'",
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"expected_output": "",
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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 networkpolicy default-deny-all --ignore-not-found"
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}
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]
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}
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