ARM.yml

# Derived from:
# https://medium.com/swlh/using-github-actions-to-build-arm-based-docker-images-413a8d498ee
# How to get an image's sha digest:
# https://github.com/moby/moby/issues/17670#issuecomment-206361685

name: ARM
on: push

jobs:
  build-arm64:
    runs-on: ubuntu-20.04
    steps:
      - name: Set up convenient env vars
        uses: FranzDiebold/github-env-vars-action@v2
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v1
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1
      - name: Login to DockerHub
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKER_USER }}
          password: ${{ secrets.DOCKER_PASSWORD }}
      - name: Checkout
        uses: actions/checkout@v2
        with:
          fetch-depth: 0
      - name: Set up Python 3.9
        uses: actions/setup-python@v2
        with:
          python-version: '3.9'
          architecture: 'x64'
      - name: Make
        run: make
      - name: Build ARM and push
        env:
          DOCKER_CLI_EXPERIMENTAL: enabled
          LOCAL_DEFAULT_IMAGE: vector_node:${{ env.CI_SHA_SHORT }}
          REMOTE_ARM_IMAGE: connextproject/vector_node_arm:${{ env.CI_SHA_SHORT }}
          REMOTE_DEFAULT_IMAGE: connextproject/vector_node:${{ env.CI_SHA_SHORT }}
          REGISTRY: connextproject
        run: |
          echo "docker buildx-ing ARM image with tag: ${REMOTE_ARM_IMAGE}_arm"
          docker buildx build --platform=linux/arm64 --tag ${REMOTE_ARM_IMAGE}_arm --file modules/server-node/ops/arm.Dockerfile --output type=image,push=true modules/server-node
          echo "pushing ${REMOTE_DEFAULT_IMAGE}_default to get digest"
          docker tag ${LOCAL_DEFAULT_IMAGE} ${REMOTE_DEFAULT_IMAGE}_default
          default_digest=$(docker push ${REMOTE_DEFAULT_IMAGE}_default | grep sha | cut -d ' ' -f 3)
          echo "pushing ${REMOTE_ARM_IMAGE}_arm to get digest"
          docker pull ${REMOTE_ARM_IMAGE}_arm
          arm_digest=$(docker push ${REMOTE_ARM_IMAGE}_arm | grep sha | cut -d ' ' -f 3)
          echo "creating manifest from ${REGISTRY}/vector_node@${default_digest} AND ${REGISTRY}/vector_node_arm@${arm_digest}"
          docker manifest create ${REMOTE_DEFAULT_IMAGE} --amend ${REGISTRY}/vector_node@${default_digest} --amend ${REGISTRY}/vector_node_arm@${arm_digest}
          echo "pushing manifest ${REMOTE_DEFAULT_IMAGE}"
          docker manifest push ${REMOTE_DEFAULT_IMAGE}