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fix: SBOM attestation and cosign identity matching #48

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Merged
mikkeldamsgaard merged 1 commit into from
Mar 14, 2026
Merged

fix: SBOM attestation and cosign identity matching #48

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4 changes: 2 additions & 2 deletions .github/workflows/release.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -58,7 +58,7 @@ jobs:
- name: SBOM attestation for initium image
run: |
cosign attest --yes --type spdx \
--predicate <(docker buildx imagetools inspect ghcr.io/kitstream/initium@${{ steps.build-main.outputs.digest }} --format '{{json .SBOM.SPDX}}') \
--predicate <(docker buildx imagetools inspect ghcr.io/kitstream/initium@${{ steps.build-main.outputs.digest }} --format '{{json (index .SBOM "linux/amd64").SPDX}}') \
ghcr.io/kitstream/initium@${{ steps.build-main.outputs.digest }}
- uses: docker/build-push-action@v6
id: build-jyq
Expand All @@ -81,5 +81,5 @@ jobs:
- name: SBOM attestation for initium-jyq image
run: |
cosign attest --yes --type spdx \
--predicate <(docker buildx imagetools inspect ghcr.io/kitstream/initium-jyq@${{ steps.build-jyq.outputs.digest }} --format '{{json .SBOM.SPDX}}') \
--predicate <(docker buildx imagetools inspect ghcr.io/kitstream/initium-jyq@${{ steps.build-jyq.outputs.digest }} --format '{{json (index .SBOM "linux/amd64").SPDX}}') \
ghcr.io/kitstream/initium-jyq@${{ steps.build-jyq.outputs.digest }}
5 changes: 5 additions & 0 deletions CHANGELOG.md
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Expand Up @@ -7,6 +7,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0

## [Unreleased]

### Fixed

- SBOM attestation in release workflow: use platform-specific SBOM path (`index .SBOM "linux/amd64"`) instead of `.SBOM.SPDX` which returns `null` for multi-platform images.
- Cosign verification commands in docs and Makefile: use `--certificate-identity` with the exact tag ref (e.g. `@refs/tags/v2.0.0`) instead of a glob pattern (`v*`) which cosign does not support.

## [2.0.0] - 2026-03-14

### Security
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2 changes: 1 addition & 1 deletion Makefile
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@@ -1,7 +1,7 @@
BINARY := initium
VERSION ?= dev
IMAGE ?= ghcr.io/kitstream/initium
COSIGN_IDENTITY := https://github.com/KitStream/initium/.github/workflows/release.yml@refs/tags/v*
COSIGN_IDENTITY := https://github.com/KitStream/initium/.github/workflows/release.yml@refs/tags/v$(VERSION)
.PHONY: all build test lint clean verify-image
all: lint test build
build:
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4 changes: 2 additions & 2 deletions docs/security.md
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Expand Up @@ -86,7 +86,7 @@ Release images are signed with [cosign](https://github.com/sigstore/cosign) usin
# Verify signature (requires cosign)
cosign verify \
--certificate-oidc-issuer https://token.actions.githubusercontent.com \
--certificate-identity 'https://github.com/KitStream/initium/.github/workflows/release.yml@refs/tags/v*' \
--certificate-identity 'https://github.com/KitStream/initium/.github/workflows/release.yml@refs/tags/v2.0.0' \
ghcr.io/kitstream/initium:2.0.0

# Or use the Makefile target (also supports IMAGE=ghcr.io/kitstream/initium-jyq)
Expand All @@ -99,7 +99,7 @@ make verify-image VERSION=2.0.0
cosign verify-attestation \
--type spdx \
--certificate-oidc-issuer https://token.actions.githubusercontent.com \
--certificate-identity 'https://github.com/KitStream/initium/.github/workflows/release.yml@refs/tags/v*' \
--certificate-identity 'https://github.com/KitStream/initium/.github/workflows/release.yml@refs/tags/v2.0.0' \
ghcr.io/kitstream/initium:2.0.0
```

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