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apf_portal/docs/decisions
julien 02bdd43fa1
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fix(ci): pin act_runner job image to catthehacker/ubuntu:act-22.04 (#4)
## Summary

- Pin `act_runner`'s job container image to `catthehacker/ubuntu:act-22.04` via the `<label>:docker://<image>` format on the runner registration labels.
- Update `infra/ci-runners.compose.yml`'s `GITEA_RUNNER_LABELS` for all three runner services, with an inline comment explaining the format requirement.
- Amend ADR-0015 §"Runners" to specify the chosen image and explain the docker-suffix syntax trap.

## Motivation

The first real PR test of the CI pipeline failed at the very first step:

```
Run actions/checkout@v4
0s
Cannot find: node in PATH
 Failure - Main actions/checkout@v4
```

Root cause: `act_runner` registers labels (`self-hosted`, `on-prem`) without a `docker://` image suffix. Without that suffix, act spawns jobs in a minimal default container that has no Node. Every JavaScript action (`actions/checkout`, `actions/setup-node`, `nrwl/nx-set-shas`, the Trivy/gitleaks actions) crashes during the action's launch step. None of the five CI gates can run.

`catthehacker/ubuntu:act-22.04` is the de facto image used by `act` upstream and the standard recommendation for self-hosted Gitea Actions runners. It bundles Node, Python, git, common build tools, and the Docker CLI — exactly the assumed environment for GitHub Actions-compatible workflows.

## Implementation notes

- The fix lives in `GITEA_RUNNER_LABELS` because that's what `act_runner` reads at registration time. The label-to-image mapping is then persisted in the runner's `data/runner-N/.runner` credential.
- For runners **already registered** (i.e. the three currently-running `apf-portal-runner-N`), the persisted credential ignores the new env var. Their labels must be updated through Gitea's UI (Site Administration → Actions → Runners → each runner → edit `Labels`). This is documented in the commit message and is an operational follow-up to merging this PR.
- The compose-file change applies the next time a runner is re-registered (e.g. when `data/runner-N/` is wiped or a new fourth runner is added).
- ADR-0015 amendment is in-place, status remains `accepted`. The runner-image choice is an implementation detail under the existing decision; no new ADR.

## Verification

- [ ] `pnpm ci:check` — n/a, this PR only changes infra and ADR docs, no code paths.
- [ ] **Manual:** after merge + Gitea label updates, the next PR's `actions/checkout@v4` step runs without `Cannot find: node in PATH`.

## Related

- [ADR-0015 — CI/CD pipeline](docs/decisions/0015-cicd-gitea-actions.md). Amended in §"Runners".
- [`infra/README.md`](infra/README.md) — operational doc for the runners; mentions the registration workflow but predates this format requirement. A subsequent docs touch could mirror the new label format there too; deferred to keep this PR scoped to the actual fix.

---------

Co-authored-by: Julien Gautier <julien.gautier@apf.asso.fr>
Reviewed-on: #4
2026-05-04 11:06:56 +02:00
..

Architectural Decision Records

This project records architecturally-significant decisions as ADRs in the MADR 4.0.0 format. References: adr.github.io.

Why ADRs

ADRs capture the why behind a decision — context, drivers, options considered, trade-offs accepted — at the moment the decision is made. They make architecture reviewable, onboarding faster, and prevent the same debate from being re-litigated later.

Conventions

  • Format: MADR 4.0.0. Start from template.md.
  • Filename: NNNN-kebab-case-title.md, e.g. 0007-adopt-tailwind-for-design-tokens.md.
  • Numbering: globally sequential 4-digit prefix. Numbers never reset, never get reused — even when an ADR is superseded or deprecated.
  • Layout: flat folder. ADRs are not nested into category subfolders; topical organization happens via tags.
  • Tags: every ADR carries a tags: array in the MADR frontmatter, drawn from the tag vocabulary below. An ADR may carry several tags. Propose new tags (or renames) in the same PR that needs them; never invent ad-hoc tags inline.
  • Status lifecycle: proposedaccepted → optionally deprecated or superseded by [ADR-NNNN](NNNN-other.md). Update the YAML frontmatter; never delete an ADR.
  • Index maintenance: every ADR addition or status change must update the Index below in the same commit.

When to write an ADR

Write one whenever a development decision is non-trivial: tool or library choice, framework pattern, security control, perf budget, a11y target, naming convention, deprecation, breaking change, or any choice that future contributors would benefit from understanding the why of.

Tag vocabulary

The vocabulary below is the source of truth. It is intentionally coarse — propose extensions only when an existing tag genuinely doesn't fit, and avoid overly narrow tags.

Tag Scope
frontend UI, Angular, components, design system, client-side state
backend API, BFF, server-side services
security AuthN, AuthZ, sessions, CSP, dependency scanning, secret management
performance Perf budgets, caching, bundle size, Lighthouse
accessibility WCAG, a11y testing, keyboard, ARIA, contrast
infrastructure CI/CD, hosting, deployment, runtime
observability Logs, metrics, traces, correlation IDs, monitoring
data Persistence, schemas, migrations, data flow
process Team conventions, workflows, repo policy

Status: starter vocabulary, to be refined as ADRs accumulate. Update this table whenever a tag is added, renamed, or retired.

Index

ADRs are listed in numerical order. To slice by topic, filter on the Tags column.

# Title Status Tags Date
0001 Use ADRs to record architectural decisions accepted process 2026-04-29
0002 Adopt Nx monorepo with the apps preset accepted infrastructure, frontend, backend 2026-04-29
0003 Workspace and app naming convention accepted process 2026-04-29
0004 Frontend stack — Angular (latest LTS), standalone, zoneless, Signals, CSR-only, Vitest accepted frontend 2026-04-29
0005 Backend stack — NestJS over Express, Fastify, Hono accepted backend 2026-04-29
0006 Persistence — PostgreSQL with Prisma accepted data, backend 2026-04-29
0007 Pre-commit hooks and Conventional Commits accepted process 2026-04-29
0008 Identity model — multi-tenant Entra ID for workforce, dual-audience design for future External ID accepted security, data 2026-04-29
0009 Authentication flow — OIDC Authorization Code + PKCE via MSAL Node, BFF session pattern accepted security, backend 2026-04-29
0010 Session management — opaque session IDs in cookies, payload in self-hosted Redis with AES-GCM at rest accepted security, backend, infrastructure 2026-04-29
0011 MFA enforcement — Entra ID Conditional Access baseline, BFF claim sanity-check, step-up hooks designed-in accepted security 2026-04-29
0012 Observability — Pino structured logs + OpenTelemetry tracing, W3C Trace Context propagation, stdout + collector accepted observability, backend, frontend 2026-04-29
0013 Audit trail — separated append-only Postgres schema, decoupled from app logs accepted security, observability, data 2026-04-29
0014 Downstream API access — On-Behalf-Of pattern, unified DownstreamApiClient, audience-aware authorization accepted security, backend 2026-04-29
0015 CI/CD pipeline — Gitea Actions, trunk-based + squash-merge, thin YAML over portable scripts accepted infrastructure, process 2026-04-30
0016 Accessibility baseline — WCAG 2.2 AA + targeted AAA, Angular CDK + spartan-ng + Tailwind, APF panel testing accepted accessibility, frontend, process 2026-04-30
0017 Performance budgets — Core Web Vitals + Lighthouse CI gates, bundle budgets, BFF p95/p99 SLOs accepted performance, frontend, backend, process 2026-04-30