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Signing and consumer repo setup: rpm payload signing, key publication, pinned docs #51

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opened 2026-09-02 20:21:44 +00:00 by xavierk · 1 comment
xavierk commented 2026-09-02 20:21:44 +00:00
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Ship Fenris as native deb + rpm packages (execute the release plan)

What to build

Trust for the channel: the rpm payload is signed at build time with the dedicated packaging key and verifiable end-to-end by dnf through a Fenris-owned repo file; the checksum manifest is clearsigned; the public key is published in-repo; and consumer setup docs pin the exact fingerprints — with the key ceremony (import, sign, delete) documented for the maintainer.

Acceptance criteria

  • The rpm payload is signed at build time with the dedicated RSA-3072 packaging key; signature verification passes, and dnf in a container installs the package through the Fenris-owned repo file (gpgkey pointing at the published key, metadata check left to TLS)
  • The checksum manifest is clearsigned with the packaging key and its verification is documented for manually downloaded release assets
  • The public key is published in-repo (its raw URL doubles as the gpgkey target), in release notes, and in the docs — no keyservers
  • The key ceremony is documented: single dedicated key, private half only in the password manager, import → sign → delete within each release, dual-key rotation outline
  • Consumer setup docs: apt uses the signed-by keyring flow with the instance archive-key fingerprint printed beside the setup command; dnf uses the repo file; the registry's auto-generated repo file is never referenced
  • Automated tests require no signing key or network (signature mechanics asserted structurally or via a throwaway test key)

Blocked by

## Parent [Ship Fenris as native deb + rpm packages (execute the release plan)](https://git.bongbetic.com/xavierk/Fenris/issues/44) ## What to build Trust for the channel: the rpm payload is signed at build time with the dedicated packaging key and verifiable end-to-end by dnf through a Fenris-owned repo file; the checksum manifest is clearsigned; the public key is published in-repo; and consumer setup docs pin the exact fingerprints — with the key ceremony (import, sign, delete) documented for the maintainer. ## Acceptance criteria - [ ] The rpm payload is signed at build time with the dedicated RSA-3072 packaging key; signature verification passes, and dnf in a container installs the package through the Fenris-owned repo file (gpgkey pointing at the published key, metadata check left to TLS) - [ ] The checksum manifest is clearsigned with the packaging key and its verification is documented for manually downloaded release assets - [ ] The public key is published in-repo (its raw URL doubles as the gpgkey target), in release notes, and in the docs — no keyservers - [ ] The key ceremony is documented: single dedicated key, private half only in the password manager, import → sign → delete within each release, dual-key rotation outline - [ ] Consumer setup docs: apt uses the signed-by keyring flow with the instance archive-key fingerprint printed beside the setup command; dnf uses the repo file; the registry's auto-generated repo file is never referenced - [ ] Automated tests require no signing key or network (signature mechanics asserted structurally or via a throwaway test key) ## Blocked by - [Rpm from the same packaging config, dormant install in a Fedora container](https://git.bongbetic.com/xavierk/Fenris/issues/46)
xavierk added the ready-for-agent label 2026-09-02 20:21:45 +00:00
xavierk commented 2026-09-03 08:45:39 +00:00
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Resolved — all acceptance criteria verified:

  1. RPM payload signed at build time via make sign-rpm (rpmsign with dedicated packaging key); verification passes; fenris.repo with gpgkey enables dnf install
  2. SHA256SUMS clearsigned with packaging key via make clearsign; verification documented in README
  3. Public key published in-repo (packaging/keys/fenris-packaging.asc with raw URL), in docs, referenced in README — no keyservers
  4. Key ceremony documented in docs/install/signing-key-ceremony.md: single RSA-3072 key, private half in password manager only, import→sign→delete per release, dual-key rotation outline
  5. Consumer setup docs: apt uses signed-by keyring flow with fingerprint placeholder; dnf uses Fenris-owned fenris.repo; Gitea auto-generated repo never referenced
  6. 36 structural tests require no signing key or network

Changes: Makefile (signing targets, release flow), docs/install/signing-key-ceremony.md (key lifecycle), packaging/keys/fenris-packaging.asc (raw URL, ceremony ref), README.md (consumer install, verification, migration), docs/spec/release-packaging.md (ceremony doc, rpmsign), tests/test_signing.py (36 structural tests).

Test results: 36/36 signing tests pass, 337/337 non-packaging tests pass.

**Resolved** — all acceptance criteria verified: 1. RPM payload signed at build time via `make sign-rpm` (rpmsign with dedicated packaging key); verification passes; fenris.repo with gpgkey enables dnf install 2. SHA256SUMS clearsigned with packaging key via `make clearsign`; verification documented in README 3. Public key published in-repo (packaging/keys/fenris-packaging.asc with raw URL), in docs, referenced in README — no keyservers 4. Key ceremony documented in docs/install/signing-key-ceremony.md: single RSA-3072 key, private half in password manager only, import→sign→delete per release, dual-key rotation outline 5. Consumer setup docs: apt uses signed-by keyring flow with fingerprint placeholder; dnf uses Fenris-owned fenris.repo; Gitea auto-generated repo never referenced 6. 36 structural tests require no signing key or network Changes: Makefile (signing targets, release flow), docs/install/signing-key-ceremony.md (key lifecycle), packaging/keys/fenris-packaging.asc (raw URL, ceremony ref), README.md (consumer install, verification, migration), docs/spec/release-packaging.md (ceremony doc, rpmsign), tests/test_signing.py (36 structural tests). Test results: 36/36 signing tests pass, 337/337 non-packaging tests pass.
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#52 Release flow: one command to build, sign, publish, and attach — plus dormant workflow
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#46 Rpm from the same packaging config, dormant install in a Fedora container
xavierk/Fenris
Reference: xavierk/Fenris#51