- infra/scripts/simulate-two-host/: real two-Docker-network simulation
(Gateway genuinely isolated from any Lab bridge network) proving the
Lab Host Router fix - 13/13 real assertions (HTTP+WebSocket through the
Router, Alice/Bob isolation, garbage/destroyed tokens, mTLS-only Router
access).
- infra/scripts/drills/: Lab Host loss/rebuild (9/9), deployment rollback,
CI-fails-closed (6 required failure modes), fake cohort dress rehearsal
(14/14, one continuous narrative through the real app).
- infra/ci/gitea-workflows/build-and-test.yml: new security-scan job
(npm audit, gitleaks, hadolint, shellcheck, trivy - all free/open-source),
severity policy in docs/SECURITY_SCANNING.md (CRITICAL/HIGH blocks,
MEDIUM/LOW reported only). Gates build-images alongside regression.
Found and fixed two real pre-existing bugs via the CI-fails-closed drill:
staging-smoke-test.sh and production-smoke-test.sh both had a classic
set -e gotcha (curl ... && echo "OK" as one statement - a failing command
that isn't last in an && chain doesn't trigger -e) that let an
unreachable/broken endpoint fall through silently instead of failing the
smoke test.
platform/test/e2e-phase3a.js updated for the new paginated
/api/admin/audit-events response shape (Phase 4.1 pagination work).
Adds platform/lab-router/ — a narrow service that runs on the Lab Host,
authenticates the Gateway via mTLS, and resolves an opaque routing token to
a local container purely from Docker label state (no Postgres access, no
callback to the Provisioner). Replaces the Gateway's env.internal_ip
assumption (only valid when Gateway and Lab share a Docker daemon) with a
data-driven direct/router decision per lab_host
(lab_hosts.routing_mode/router_endpoint, migration 004), resolved in one
place (platform/gateway/src/lab-endpoint.js's labTarget()) that every
proxy/fetch call site in server.js now goes through.
Extends the existing Docker TLS CA (infra/scripts/docker-tls/generate-docker-tls.sh)
with a second mTLS leaf pair (router-server/gateway-client) for this new
data-plane connection, deployed by the docker-tls Ansible role into a
separate directory from the control-plane pair. Firewall
(rn-lab-host-01.rules) replaces the old speculative wide port-range
allowance with one narrow rule: platform_ip -> the Router's port only.
dev-local stays routing_mode: direct — zero behavior change for local dev,
confirmed by the full existing regression suite passing unmodified.
boot-labs.js drives the real admin Prepare-Labs endpoint (reusing the
existing session-helper.js from Phase 3A) and records boot time/failure
rate; sample-resources.sh samples real docker stats for running Labs.
capacity-model.js turns measured per-Lab CPU/memory into a recommended/
warning/hard-admission-control concurrency threshold - no concurrency
number is hardcoded as a marketing figure, every input is explicitly
placeholder data until measured against the real host.
Plus deploy/rollback/smoke-test scripts used by the CI/CD and deployment
runbooks. All syntax-checked; validate-compose.sh and capacity-model.js
actually run against real inputs.
Automatic test/build/tag/staging-deploy on push to main; production
promotion stays a manual, human-run step (deploy-production.sh) - never
automated. SHA-tagged images always, semantic tags only on deliberate
release, never :latest alone in staging/production. No paid CI provider or
registry required (uses Gitea's own). Real regression job installs all
services, applies real migrations against a service Postgres, runs the
infra validation scripts.
Validated as real YAML (python3 yaml parse).
Named-bridge-network production Compose (not host networking, unlike dev)
for rn-platform-01; egress-proxy + agents for rn-lab-host-01. Caddy reverse
proxy, single public origin, Grafana restricted to management_cidr.
iptables-restore firewall rulesets for all three hosts (Proxmox host,
rn-platform-01, rn-lab-host-01) codifying the Platform/Lab-Host boundary:
no student-to-student traffic, no direct Proxmox exposure, no direct
Postgres/Provisioner exposure from the Lab Host.
Mutual TLS for the Provisioner<->Lab Host Docker connection: certificate
generation/verification scripts, dockerd TLS config, firewall-restricted
port 2376. Application support already existed since Phase 1; this is
purely the operational half.
Validated: docker compose config, caddy validate, firewall structural lint,
and a real openssl s_server/s_client mTLS handshake proving the cert chain
and mutual-auth rejection (legitimate client verified, rogue client
correctly rejected with verify code 19).
ced4568