A fork of the Cocoon PDS but being made more distributed.
Create multiplatform image, add curl to image for healthcheck (#45)
authored by
Aadi Desai
and committed by
GitHub
(Dec 9, 2025, 11:59 AM -0800)
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.github/workflows/docker-image.yml
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.github/workflows/docker-image.yml
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jobs:
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build-and-push-image:
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runs-on: ubuntu-latest
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strategy:
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matrix:
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include:
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- arch: amd64
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runner: ubuntu-latest
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- arch: arm64
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runner: ubuntu-24.04-arm
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runs-on: ${{ matrix.runner }}
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# Sets the permissions granted to the `GITHUB_TOKEN` for the actions in this job.
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permissions:
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contents: read
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packages: write
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attestations: write
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id-token: write
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#
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outputs:
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digest-amd64: ${{ matrix.arch == 'amd64' && steps.push.outputs.digest || '' }}
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digest-arm64: ${{ matrix.arch == 'arm64' && steps.push.outputs.digest || '' }}
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steps:
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- name: Checkout repository
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uses: actions/checkout@v4
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with:
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images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
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tags: |
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type=raw,value=latest,enable={{is_default_branch}}
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type=sha
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type=sha,format=long
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type=semver,pattern={{version}}
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type=semver,pattern={{major}}.{{minor}}
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type=raw,value=latest,enable={{is_default_branch}},suffix=-${{ matrix.arch }}
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type=sha,suffix=-${{ matrix.arch }}
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type=sha,format=long,suffix=-${{ matrix.arch }}
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type=semver,pattern={{version}},suffix=-${{ matrix.arch }}
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type=semver,pattern={{major}}.{{minor}},suffix=-${{ matrix.arch }}
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# This step uses the `docker/build-push-action` action to build the image, based on your repository's `Dockerfile`. If the build succeeds, it pushes the image to GitHub Packages.
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# It uses the `context` parameter to define the build's context as the set of files located in the specified path. For more information, see "[Usage](https://github.com/docker/build-push-action#usage)" in the README of the `docker/build-push-action` repository.
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tags: ${{ steps.meta.outputs.tags }}
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labels: ${{ steps.meta.outputs.labels }}
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publish-manifest:
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needs: build-and-push-image
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runs-on: ubuntu-latest
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permissions:
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packages: write
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attestations: write
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id-token: write
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steps:
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- name: Log in to the Container registry
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uses: docker/login-action@v3
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with:
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registry: ${{ env.REGISTRY }}
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username: ${{ github.actor }}
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password: ${{ secrets.GITHUB_TOKEN }}
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- name: Extract metadata (tags, labels) for Docker
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id: meta
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uses: docker/metadata-action@v5
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with:
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images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
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tags: |
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type=raw,value=latest,enable={{is_default_branch}}
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type=sha
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type=sha,format=long
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type=semver,pattern={{version}}
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type=semver,pattern={{major}}.{{minor}}
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- name: Create and push manifest
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run: |
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# Split tags into an array
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readarray -t tags <<< "${{ steps.meta.outputs.tags }}"
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# Create and push manifest for each tag
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for tag in "${tags[@]}"; do
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docker buildx imagetools create -t "$tag" \
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"${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}@${{ needs.build-and-push-image.outputs.digest-amd64 }}" \
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"${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}@${{ needs.build-and-push-image.outputs.digest-arm64 }}"
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done
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# This step generates an artifact attestation for the image, which is an unforgeable statement about where and how it was built. It increases supply chain security for people who consume the image. For more information, see "[AUTOTITLE](/actions/security-guides/using-artifact-attestations-to-establish-provenance-for-builds)."
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- name: Generate artifact attestation
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uses: actions/attest-build-provenance@v1
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with:
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subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME}}
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subject-digest: ${{ steps.push.outputs.digest }}
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subject-digest: ${{ needs.build-and-push-image.outputs.digest-amd64 }}
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push-to-registry: true
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Dockerfile
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Dockerfile
···
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### Run stage
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FROM debian:bookworm-slim AS run
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RUN apt-get update && apt-get install -y dumb-init runit ca-certificates && rm -rf /var/lib/apt/lists/*
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RUN apt-get update && apt-get install -y dumb-init runit ca-certificates curl && rm -rf /var/lib/apt/lists/*
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ENTRYPOINT ["dumb-init", "--"]
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WORKDIR /