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Merge pull request #992 from JimDabell/docker-build
Set up Docker Hub publishing as a GitHub Action
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# This automatically builds a multi-arch image and pushes it to Docker Hub | ||
# whenever a new release is published. | ||
# | ||
# Required settings: | ||
# | ||
# The `REGISTRY_IMAGE` GitHub Actions environment variable should contain | ||
# the image name, e.g. `kritishdhaubanjar/dynamodb-dashboard`. | ||
# | ||
# The `DOCKER_USERNAME` GitHub Actions secret should contain your Docker | ||
# Hub username. | ||
# | ||
# The `DOCKER_PASSWORD` GitHub Actions secret should contain a Docker Hub | ||
# access token with Read and Write permissions. | ||
|
||
name: Publish Docker image | ||
on: | ||
release: | ||
types: [published] | ||
jobs: | ||
build: | ||
name: Push Docker image to Docker Hub | ||
runs-on: ubuntu-latest | ||
strategy: | ||
fail-fast: false | ||
matrix: | ||
platform: | ||
- linux/amd64 | ||
- linux/arm64 | ||
permissions: | ||
packages: write | ||
contents: read | ||
steps: | ||
- name: Prepare | ||
run: | | ||
platform=${{ matrix.platform }} | ||
echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV | ||
- name: Check out the repo | ||
uses: actions/checkout@v4 | ||
|
||
- name: Log in to Docker Hub | ||
uses: docker/login-action@v3 | ||
with: | ||
username: ${{ secrets.DOCKER_USERNAME }} | ||
password: ${{ secrets.DOCKER_PASSWORD }} | ||
|
||
- name: Set up QEMU | ||
uses: docker/setup-qemu-action@v3 | ||
|
||
- name: Set up Docker Buildx | ||
uses: docker/setup-buildx-action@v3 | ||
|
||
- name: Extract metadata (tags, labels) for Docker | ||
id: meta | ||
uses: docker/metadata-action@v5 | ||
with: | ||
images: ${{ vars.REGISTRY_IMAGE }} | ||
|
||
- name: Build and push by digest | ||
id: build | ||
uses: docker/build-push-action@v5 | ||
with: | ||
context: . | ||
platforms: ${{ matrix.platform }} | ||
labels: ${{ steps.meta.outputs.labels }} | ||
outputs: type=image,name=${{ vars.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 | ||
env: | ||
PLATFORM_PAIR: ${{ env.PLATFORM_PAIR }} | ||
with: | ||
name: digests-${{ 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 | ||
|
||
- name: Docker meta | ||
id: meta | ||
uses: docker/metadata-action@v5 | ||
with: | ||
images: ${{ vars.REGISTRY_IMAGE }} | ||
|
||
- name: Login to Docker Hub | ||
uses: docker/login-action@v3 | ||
with: | ||
username: ${{ secrets.DOCKER_USERNAME }} | ||
password: ${{ secrets.DOCKER_PASSWORD }} | ||
|
||
- 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") \ | ||
$(printf '${{ vars.REGISTRY_IMAGE }}@sha256:%s ' *) | ||
- name: Inspect image | ||
run: | | ||
docker buildx imagetools inspect ${{ vars.REGISTRY_IMAGE }}:${{ steps.meta.outputs.version }} |