GitHub Actions #1
Workflow file for this run
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# https://docs.docker.com/build/ci/github-actions/multi-platform/ | |
name: CI | |
on: | |
# https://docs.github.com/en/actions/writing-workflows/choosing-when-your-workflow-runs/events-that-trigger-workflows | |
push: | |
tags: | |
# match on year.month tag | |
# https://docs.github.com/en/actions/writing-workflows/workflow-syntax-for-github-actions#filter-pattern-cheat-sheet | |
- '[2-9][0-9].[0-1][0-9]' | |
env: | |
REGISTRY_IMAGE: erhhung/al2023-devops | |
jobs: | |
build: | |
runs-on: ubuntu-latest | |
strategy: | |
fail-fast: false | |
matrix: | |
platform: | |
- linux/amd64 | |
- linux/arm64 | |
steps: | |
# https://github.com/actions/checkout | |
- name: Checkout Source Code | |
id: checkout | |
uses: actions/checkout@v4 | |
- name: Set Environment Variables | |
id: env | |
# https://docs.github.com/en/actions/writing-workflows/choosing-what-your-workflow-does/workflow-commands-for-github-actions#setting-an-environment-variable | |
# https://docs.github.com/en/actions/writing-workflows/choosing-what-your-workflow-does/variables#default-environment-variables | |
run: | | |
platform=${{ matrix.platform }} | |
cat <<EOF >> $GITHUB_ENV | |
PLATFORM_PAIR=${platform//\//-} | |
EOF | |
# https://github.com/docker/setup-qemu-action | |
- name: Set up QEMU Emulator | |
id: qemu | |
uses: docker/setup-qemu-action@v3 | |
with: | |
platforms: ${{ matrix.platform }} | |
# https://github.com/docker/setup-buildx-action | |
- name: Set up Docker BuildX | |
id: buildx | |
uses: docker/setup-buildx-action@v3 | |
with: | |
platforms: ${{ matrix.platform }} | |
# https://github.com/docker/metadata-action | |
- name: Extract Metadata for Docker | |
id: metadata | |
uses: docker/metadata-action@v5 | |
with: | |
images: ${{ env.REGISTRY_IMAGE }} | |
# https://github.com/aws-actions/amazon-ecr-login | |
- name: Log in to ECR Public | |
id: ecr | |
uses: aws-actions/amazon-ecr-login@v2 | |
with: | |
registry-type: public | |
# https://github.com/docker/build-push-action | |
- name: Build and Push by Digest | |
id: build | |
uses: docker/build-push-action@v6 | |
with: | |
platforms: ${{ matrix.platform }} | |
labels: ${{ steps.metadata.outputs.labels }} | |
outputs: type=image,name=${{ env.REGISTRY_IMAGE }},push-by-digest=true,name-canonical=true,push=true | |
# create 0-byte file named by digest | |
- name: Export Digest | |
id: export | |
run: | | |
mkdir -p /tmp/digests | |
digest="${{ steps.build.outputs.digest }}" | |
touch "/tmp/digests/${digest#sha256:}" | |
# https://github.com/actions/upload-artifact | |
- name: Upload Digest | |
id: upload | |
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: | |
# https://github.com/actions/download-artifact | |
- name: Download Digests | |
id: download | |
uses: actions/download-artifact@v4 | |
with: | |
path: /tmp/digests | |
pattern: digests-* | |
merge-multiple: true | |
# https://github.com/docker/setup-buildx-action | |
- name: Set up Docker BuildX | |
id: buildx | |
uses: docker/setup-buildx-action@v3 | |
# https://github.com/docker/metadata-action | |
- name: Extract Metadata for Docker | |
id: metadata | |
uses: docker/metadata-action@v5 | |
with: | |
images: ${{ env.REGISTRY_IMAGE }} | |
# https://github.com/docker/login-action | |
- name: Log in to Docker Hub | |
id: dockerhub | |
uses: docker/login-action@v3 | |
with: | |
username: ${{ secrets.DOCKER_HUB_USERNAME }} | |
password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }} | |
- name: Create Manifests and Push | |
id: manifests | |
working-directory: /tmp/digests | |
run: | | |
tags=($(jq -cr '[.tags[] | "-t \(.)"] | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON")) | |
images=($(printf '${{ env.REGISTRY_IMAGE }}@sha256:%s ' *)) | |
docker buildx imagetools create "${tags[@]}" "${images[@]}" | |
# confirm merged image manifests | |
- name: Inspect Image | |
id: inspect | |
run: | | |
tag="${{ env.REGISTRY_IMAGE }}:$DOCKER_METADATA_OUTPUT_VERSION" | |
docker buildx imagetools inspect $tag |