feat: Parameterized DOCKER_METADATA_PR_HEAD_SHA to allow for PR-HEAD tagging #40
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By default, Github Action uses merge commits during PR events for the (referenced via the `github.sha` variable). Some users find this challenging, since the merge commit contains code from the target branch, which is troublesome for long-running branches, merge-conflicts, and a hotfix workflow for deploying one-off containers. This allows users to configure docker metadata-action to compute the SHA tags appropriately. Unfortunately the metadata-action does not compute based on a checkout action of the code, so we have to tell it to use the correct event SHA explicitly with this environment variable. See https://github.com/docker/metadata-action#environment-variables
milldr
reviewed
Jul 12, 2023
Co-authored-by: Dan Miller <miller0daniel@gmail.com>
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@pk-nb Till that moment you can use the workaround: - name: Build
id: build
uses: cloudposse/github-action-docker-build-push@main
with:
registry: registry.hub.docker.com
organization: "${{ github.event.repository.owner.login }}"
repository: "${{ github.event.repository.name }}"
login: "${{ secrets.DOCKERHUB_USERNAME }}"
password: "${{ secrets.DOCKERHUB_PASSWORD }}"
platforms: linux/amd64,linux/arm64
env:
DOCKER_METADATA_PR_HEAD_SHA=true |
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@pk-nb Thanks for your contribution. https://github.com/cloudposse/github-action-docker-build-push/releases/tag/1.13.1 |
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what
docker-metadataaction will use the PR merge commit for the docker SHA tags (referenced via thegithub.shavariable).github.event.pull_request.head.shainstead.checkoutaction in their own workflows to usegithub.event.pull_request.head.sha)See https://github.com/docker/metadata-action#environment-variables for documentation.
why
mainbranch code in it for hotfixes (with a manual release workflow that we use)truecheck so the default offalsewill work as expected.