Add annotations to container image #864
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- Add annotations to container image, manifest and index. - Enable reproducible builds.
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Pull Request Overview
This PR adds support for reproducible Docker builds by implementing SOURCE_DATE_EPOCH timestamps and Docker metadata annotations. The changes enable consistent build timestamps derived from Git commits and configure annotation levels for Docker images.
- Introduces Git commit timestamp extraction step in both workflows
- Configures SOURCE_DATE_EPOCH environment variable for reproducible builds
- Adds Docker metadata annotation levels to manifest and index
Reviewed Changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
| .github/workflows/release.yml | Adds Git commit timestamp step, configures SOURCE_DATE_EPOCH and DOCKER_METADATA_ANNOTATIONS_LEVELS for DockerHub release workflow |
| .github/workflows/ghcr-image-build-and-publish.yml | Adds Git commit timestamp step, configures SOURCE_DATE_EPOCH and DOCKER_METADATA_ANNOTATIONS_LEVELS, and passes annotations to build-push action for GHCR workflow |
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Update docker-build-push-image to 0.2.0 to support annotations. Signed-off-by: Martin Costello <[email protected]>
zeitlinger
approved these changes
Nov 11, 2025
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surprisingly hard to get this right
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...and fixed. 
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It was bugging me that GHCR shows a warning about a missing description. This should fix it.