Fix Cosign image digest truncation in workflow#50
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JoshuaAFerguson merged 1 commit intoNov 16, 2025
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Fixed an issue where container image digests were being truncated when signing with Cosign, causing parsing errors like: "could not parse reference: ghcr.io/.../streamspace-ui@sha256:5807b1a7bfacd" Root cause: The build output digest from docker/build-push-action can be unreliable for multi-platform builds (linux/amd64,linux/arm64), sometimes resulting in truncated or malformed digest strings when interpolated in GitHub Actions expressions. Solution: Use 'docker buildx imagetools inspect' to reliably extract the manifest list digest after the image is pushed. This approach: - Works correctly for multi-platform builds - Gets the actual manifest digest from the registry - Includes better error handling and debugging output - Validates the full sha256 hash format Changes: - Updated all 3 image signing steps (controller, API, UI) - Updated all 3 SBOM attestation steps - Added validation and error messages for debugging - Removed fragile digest parsing from build output Fixes: Cosign signing failures for multi-platform container images
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Fixed an issue where container image digests were being truncated when signing with Cosign, causing parsing errors like:
"could not parse reference: ghcr.io/.../streamspace-ui@sha256:5807b1a7bfacd"
Root cause: The build output digest from docker/build-push-action can be unreliable for multi-platform builds (linux/amd64,linux/arm64), sometimes resulting in truncated or malformed digest strings when interpolated in GitHub Actions expressions.
Solution: Use 'docker buildx imagetools inspect' to reliably extract the manifest list digest after the image is pushed. This approach:
Changes:
Fixes: Cosign signing failures for multi-platform container images