remove unused Java part in exercises #17
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name: Create and publish a Docker image | |
on: | |
push: | |
branches: ["**"] # run for any commit or tag push on any branch | |
tags-ignore: ["v**"] # reserve v* tags for releases | |
env: | |
REGISTRY_IMAGE: ghcr.io/lftraining/lfs148-code | |
jobs: | |
build: | |
name: Build and publish docker image for ${{ matrix.image }} on ${{ matrix.platform }} | |
runs-on: ${{ matrix.os }} | |
strategy: | |
fail-fast: false | |
matrix: | |
image: | |
- application | |
platform: | |
- linux/amd64 | |
- linux/arm64 | |
include: | |
- image: application | |
dockerfile: .devcontainer/Dockerfile | |
context: .devcontainer/ | |
- platform: linux/arm64 | |
os: [ubuntu-latest] | |
- platform: linux/amd64 | |
os: [ubuntu-latest] | |
permissions: | |
contents: read | |
packages: write | |
steps: | |
- name: Checkout repository | |
uses: actions/checkout@v4 | |
- name: Prepare for ${{ matrix.image }} on ${{ matrix.platform }} | |
run: | | |
platform=${{ matrix.platform }} | |
echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV | |
- name: Extract metadata (tags, labels) for Docker from ${{ matrix.image }} | |
id: meta | |
uses: docker/metadata-action@v5 | |
with: | |
images: ${{ env.REGISTRY_IMAGE }}-${{ matrix.image }} | |
tags: | | |
type=ref,event=branch | |
type=ref,event=tag | |
type=ref,event=pr | |
type=raw,value=latest,enable=${{ github.ref == format('refs/heads/{0}', 'main') }} | |
- name: Set up QEMU | |
uses: docker/setup-qemu-action@v3 | |
- name: Set up Docker Buildx | |
id: buildx | |
uses: docker/setup-buildx-action@v3 | |
- name: Login to GitHub Container Registry | |
uses: docker/login-action@v3 | |
with: | |
registry: ghcr.io | |
username: ${{ github.actor }} | |
password: ${{ secrets.GITHUB_TOKEN }} | |
- name: Build and push by digest for ${{ matrix.image }} | |
id: build | |
uses: docker/build-push-action@v6 | |
with: | |
context: ${{ matrix.context }} | |
file: ${{ matrix.dockerfile }} | |
platforms: ${{ matrix.platform }} | |
labels: ${{ steps.meta.outputs.labels }} | |
outputs: type=image,name=${{ env.REGISTRY_IMAGE }}-${{ matrix.image }},push-by-digest=true,name-canonical=true,push=true | |
cache-from: type=gha,scope=build-${{ env.PLATFORM_PAIR }} | |
cache-to: type=gha,scope=build-${{ env.PLATFORM_PAIR }} | |
- name: Export digest for ${{ matrix.image }} on ${{ matrix.platform }} | |
run: | | |
mkdir -p /tmp/digests | |
digest="${{ steps.build.outputs.digest }}" | |
touch "/tmp/digests/${digest#sha256:}" | |
- name: Upload digest | |
uses: actions/upload-artifact@v4 | |
with: | |
name: digests-${{ matrix.image }}-${{ env.PLATFORM_PAIR }} | |
path: /tmp/digests/* | |
if-no-files-found: error | |
retention-days: 1 | |
merge: | |
runs-on: ubuntu-latest | |
needs: | |
- build | |
strategy: | |
fail-fast: false | |
matrix: | |
image: | |
- application | |
steps: | |
- name: Download digests | |
uses: actions/download-artifact@v4 | |
with: | |
path: /tmp/digests | |
pattern: digests-${{ matrix.image }}* | |
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: ${{ env.REGISTRY_IMAGE }}-${{ matrix.image }} | |
tags: | | |
type=ref,event=branch | |
type=ref,event=tag | |
type=ref,event=pr | |
type=raw,value=latest,enable=${{ github.ref == format('refs/heads/{0}', 'main') }} | |
- name: Login to GitHub Container Registry | |
uses: docker/login-action@v3 | |
with: | |
registry: ghcr.io | |
username: ${{ github.actor }} | |
password: ${{ secrets.GITHUB_TOKEN }} | |
- 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 }}-${{ matrix.image }}@sha256:%s ' *) | |
- name: Inspect image | |
run: | | |
docker buildx imagetools inspect ${{ env.REGISTRY_IMAGE }}-${{ matrix.image }}:${{ steps.meta.outputs.version }} |