sjat
2f4218814a
Resolve the conflict between ADR-011 (tags-not-digests) and the security work (digest pinning) with one coherent rule that respects ADR-011's stateless/stateful split: - Stateful → pin `tag@digest` (readable tag + integrity digest): legible diffs AND tamper-evidence. Snapshots cover broken updates; the digest covers swapped images. - Stateless → rolling tags (latest/stable); digest-pinning would defeat the rolling design. Integrity rests on official/verified images + disposability. Aligned across ADR-011 (decision 2), ADR-004 (image management), ADR-002 (supply-chain row), accepted-risk R1, the service checklist, and TODO 15.6. TODO 16.7 marked decided. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
53 lines
2.4 KiB
Markdown
53 lines
2.4 KiB
Markdown
# Per-service security checklist
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The bar every service (a per-service role — ADR-004) must clear **before deploy**,
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especially anything reachable beyond its own host. Established by **ADR-002**
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(Security baseline and strategy); referenced from `docs/runbooks/new-role.md`.
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Enforced manually in review today; the planned `/security-review` skill (see
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`docs/TODO.md`) will automate the check.
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Treat each item as must-pass **unless** a deviation is recorded in
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`docs/security/accepted-risks.md` with a rationale and a revisit trigger.
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This checklist is the generic **bar**. Each service answers it in its own
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`roles/<service>/SECURITY.md` (the "Checklist status" section), created from
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`docs/security/service-security-template.md` — see ADR-004.
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## Secrets & credentials
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- [ ] All secrets live in an encrypted `vault.yml` (`vault.<service>.<key>`); none in
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plaintext files, templates, or Compose env literals
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- [ ] No default or vendor-shipped credentials remain — admin passwords/tokens are
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generated and stored in vault
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- [ ] Nothing secret is baked into an image or committed to git (gitleaks must pass)
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## Least privilege
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- [ ] Container runs as a non-root user where the image supports it
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- [ ] No `privileged: true` and no host network mode unless explicitly justified
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- [ ] Only the volumes/paths the service needs are mounted; read-only where possible
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- [ ] Linux capabilities dropped to what's required (no blanket grants)
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## Network & exposure
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- [ ] Every listening port is declared in `group_vars` firewall definitions — never
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opened ad-hoc on a host
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- [ ] The service is not published directly to a LAN/WAN port if it can sit behind the
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reverse proxy instead
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- [ ] Anything reachable beyond the `srv` VLAN is behind the reverse proxy **with
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authentication** (and TLS)
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- [ ] Inter-service reach follows least privilege — no broad `srv`→`srv` access where a
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single declared dependency suffices
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## Updates & provenance
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- [ ] Image pinned per ADR-011's tiered rule — stateful: `tag@digest`; stateless: rolling tag (`latest`/`stable`) acceptable
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- [ ] The update path is known — how this service gets patched
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## Operability (security-adjacent)
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- [ ] Logs go somewhere reviewable (central aggregation when available)
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- [ ] Backup/restore is covered if the service holds state
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> Deviations are allowed but must be **conscious**: record them in
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> `docs/security/accepted-risks.md`, don't leave them implicit.
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