Jarvis 92c6431ccf feat(federation): add Step-CA sidecar to federated compose stack [FED-M2-02] ...

Adds a profile-gated `step-ca` service to `docker-compose.federated.yml`
so the federated tier has its own internal CA. No gateway code consumes
the CA yet — that lands in M2-04 (ca.service.ts).

- docker-compose.federated.yml: new `step-ca` service using image
  `smallstep/step-ca:0.27.4` (pinned stable; `latest` forbidden by
  Mosaic image policy), named volume `step_ca_data`, port 9000,
  `[federated]` profile gate, healthcheck with 30s start_period
- infra/step-ca/init.sh: idempotent first-boot init; runs `step ca init`
  with JWK provisioner `mosaic-fed` if /home/step/config/ca.json absent;
  otherwise starts CA directly
- infra/step-ca/dev-password.example: sample dev password (real file
  is gitignored)
- infra/step-ca/templates/federation.tpl: X.509 template skeleton for
  custom OID SAN extensions (grantId 1.3.6.1.4.1.99999.1,
  subjectUserId 1.3.6.1.4.1.99999.2); TODO comment links M2-04 as the
  landing point
- .gitignore: ignores infra/step-ca/dev-password (real password)

Refs #461

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

2026-04-21 21:06:24 -05:00

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