Create multi-platform container image #12
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# See https://docs.docker.com/build/ci/github-actions/multi-platform/ for docs | |
name: Create multi-platform container image | |
on: | |
workflow_dispatch: | |
inputs: | |
version-tag: | |
description: The image tag to build for | |
required: true | |
type: string | |
concurrency: | |
group: ${{ inputs.version-tag }} | |
cancel-in-progress: true | |
env: | |
REGISTRY_IMAGE: ghcr.io/snok/container-retention-policy | |
jobs: | |
build: | |
runs-on: ubuntu-latest | |
strategy: | |
fail-fast: false | |
matrix: | |
platform: | |
- linux/amd64 | |
- linux/arm64 | |
include: | |
- platform: linux/amd64 | |
arch: amd64 | |
target_dir: x86_64-unknown-linux-musl | |
- platform: linux/arm64 | |
arch: arm64 | |
target_dir: aarch64-unknown-linux-musl | |
steps: | |
- name: Prepare | |
run: | | |
platform="${{ matrix.platform }}" | |
echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV | |
- uses: actions/checkout@v4 | |
- uses: docker/setup-qemu-action@v3 | |
- uses: docker/setup-buildx-action@v3 | |
- uses: docker/login-action@v3 | |
with: | |
registry: ghcr.io | |
username: ${{ github.actor }} | |
password: ${{ secrets.GITHUB_TOKEN }} | |
- name: Docker meta | |
id: meta | |
uses: docker/metadata-action@v5 | |
with: | |
images: ${{ env.REGISTRY_IMAGE }} | |
tags: ${{ inputs.version-tag }} | |
- name: Build and push by digest | |
id: build | |
uses: docker/build-push-action@v6 | |
with: | |
context: . | |
platforms: ${{ matrix.platform }} | |
labels: ${{ steps.meta.outputs.labels }} | |
outputs: type=image,name=${{ env.REGISTRY_IMAGE }},push-by-digest=true,name-canonical=true,push=true | |
- name: Export digest | |
run: | | |
mkdir -p /tmp/digests | |
digest="${{ steps.build.outputs.digest }}" | |
touch "/tmp/digests/${digest#sha256:}" | |
- name: Upload digest | |
uses: actions/upload-artifact@v4 | |
with: | |
name: digests-${{ env.PLATFORM_PAIR }} | |
path: /tmp/digests/* | |
if-no-files-found: error | |
retention-days: 1 | |
merge: | |
runs-on: ubuntu-latest | |
needs: | |
- build | |
steps: | |
- name: Download digests | |
uses: actions/download-artifact@v4 | |
with: | |
path: /tmp/digests | |
pattern: digests-* | |
merge-multiple: true | |
- name: Set up Docker Buildx | |
uses: docker/setup-buildx-action@v3 | |
- uses: docker/login-action@v3 | |
with: | |
registry: ghcr.io | |
username: ${{ github.actor }} | |
password: ${{ secrets.GITHUB_TOKEN }} | |
- name: Docker meta | |
id: meta | |
uses: docker/metadata-action@v5 | |
with: | |
images: ${{ env.REGISTRY_IMAGE }} | |
tags: ${{ inputs.version-tag }} | |
- name: Create manifest list and push | |
working-directory: /tmp/digests | |
run: | | |
docker buildx imagetools create $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \ | |
$(printf '${{ env.REGISTRY_IMAGE }}@sha256:%s ' *) | |
- name: Inspect image | |
run: docker buildx imagetools inspect ${{ env.REGISTRY_IMAGE }}:${{ steps.meta.outputs.version }} |