name: Multiarch build on: push: pull_request: workflow_dispatch: schedule: - cron: '0 0 * * *' # every day at midnight env: IMAGE_NAME: hello-world-multiarch IMAGE_TAG: latest jobs: build: name: Build image using Buildah runs-on: ubuntu-20.04 strategy: fail-fast: false matrix: arch: [ amd64, i386, arm64v8 ] steps: # Checkout buildah action github repository - name: Checkout Buildah action uses: actions/checkout@v2 with: path: "buildah-build" - name: Install qemu dependency run: | sudo apt-get update sudo apt-get install -y qemu-user-static - name: Create Dockerfile run: | cat > Dockerfile<<EOF ARG ARCH FROM docker.io/\${ARCH}/alpine:3.14 RUN echo "hello world" ENTRYPOINT [ "sh", "-c", "echo -n 'Machine: ' && uname -m && echo -n 'Bits: ' && getconf LONG_BIT && echo 'goodbye world'" ] EOF - name: Build Image id: build_image uses: ./buildah-build/ with: image: ${{ env.IMAGE_NAME }} tags: ${{ env.IMAGE_TAG }} arch: ${{ matrix.arch }} build-args: ARCH=${{ matrix.arch }} dockerfiles: | ./Dockerfile - name: Echo Outputs run: | echo "Image: ${{ steps.build_image.outputs.image }}" echo "Tags: ${{ steps.build_image.outputs.tags }}" - name: Check images created run: buildah images | grep '${{ env.IMAGE_NAME }}' - name: Check image metadata run: | set -x buildah inspect ${{ steps.build_image.outputs.image }}:${{ env.IMAGE_TAG }} | jq ".OCIv1.architecture" buildah inspect ${{ steps.build_image.outputs.image }}:${{ env.IMAGE_TAG }} | jq ".Docker.architecture" - name: Run image run: | podman run --rm ${{ steps.build_image.outputs.image }}:${{ env.IMAGE_TAG }}