.build_image.yml

name: Build Image and Deploy

on:
  workflow_dispatch:
  push:
    branches:
      - "trunk"
  pull_request:
    branches:
      - "trunk"

concurrency:
  group: docker-${{ github.ref }}
  cancel-in-progress: true

env:
  RABBITMQ_DEFAULT_USER: "guest"
  RABBITMQ_DEFAULT_PASS: "guest"

jobs:
  prep:
    runs-on: ubuntu-latest
    outputs:
      taggedImage: ${{ steps.prep.outputs.tagged_image }}
      tag: ${{ steps.prep.outputs.tag }}
      registry: ${{ steps.prep.outputs.registry }}
      shortSha: ${{ steps.prep.outputs.short_sha}}
      branchName: ${{ steps.prep.outputs.branch_name }}
      latestTag: ${{ steps.prep.outputs.latest_tag }}
      repositoryName: ${{ steps.prep.outputs.repository_name }}
    steps:
      - name: Git branch name
        id: git-branch-name
        uses: EthanSK/git-branch-name-action@v1
      - name: Prepare info
        id: prep
        run: |
          SHORT_SHA=$(echo $GITHUB_SHA | head -c7)
          REPO=$(echo '${{ github.repository }}' | awk -F '/' '{print $2}')
          TAG=${{ env.GIT_BRANCH_NAME }}-$(echo $GITHUB_SHA | head -c7)
          IMAGE=ideacrew/$REPO
          echo ::set-output name=tagged_image::ghcr.io/${IMAGE}:${TAG}
          echo ::set-output name=tag::${TAG}
          echo ::set-output name=short_sha::$SHORT_SHA
          echo ::set-output name=branch_name::${{ env.GIT_BRANCH_NAME }}
          echo ::set-output name=repository_name::$REPO
          echo ::set-output name=latest_tag::ghcr.io/${IMAGE}:latest

  # Uses buildx to build and push the image
  build-and-upload-image:
    needs: [prep]
    runs-on: ubuntu-latest
    services:
      rabbitmq:
        image: rabbitmq:latest
        ports:
          - 5672:5672
          - 15672:15672
        options: >-
          --name "rabbitmq"
          --health-cmd "rabbitmqctl node_health_check"
          --health-interval 10s
          --health-timeout 5s
          --health-retries 5
      mongo:
        image: mongo:4.2
        ports:
          - 27017:27017
        options: >-
          --name "mongo"
          --health-cmd mongo
          --health-interval 10s
          --health-timeout 5s
          --health-retries 5
    steps:
      # Check out repository
      - uses: actions/checkout@v3

      - name: Add git HEAD info to docker image
        run: |
          git show --quiet HEAD > release.txt
          git show --quiet HEAD > public/release.txt

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1
        with:
          install: true

      - name: Cache Docker layers
        uses: actions/cache@v3
        with:
          path: /tmp/.buildx-cache
          # Key is named differently to avoid collision
          key: ${{ runner.os }}-multi-buildx-${{ github.sha }}
          restore-keys: |
            ${{ runner.os }}-multi-buildx

      - name: Login to GHCR
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build Image
        uses: docker/build-push-action@v2
        with:
          context: .
          builder: ${{ steps.buildx.outputs.name }}
          file: .docker/production/Dockerfile.gha
          # Set the desired build target here
          target: deploy
          # needed to access mongo and rabbit on GHA machine
          network: host
          # send to public registry if not a pull request
          push: ${{ github.event_name != 'pull_request' }}
          # create local image (for scanning) if it is a pull request
          load: ${{ github.event_name == 'pull_request' }}
          tags: ${{ needs.prep.outputs.taggedImage }}, ${{ needs.prep.outputs.latestTag }}
          cache-from: type=local,src=/tmp/.buildx-cache
          # Note the mode=max here
          # More: https://github.com/moby/buildkit#--export-cache-options
          # And: https://github.com/docker/buildx#--cache-tonametypetypekeyvalue
          cache-to: type=local,mode=max,dest=/tmp/.buildx-cache-new
          build-args: |
            HOSTNAME=172.17.0.1
            BUNDLE_GITHUB__COM=x-access-token:${{ secrets.X12_TOKEN }}

      - name: Move cache
        run: |
          rm -rf /tmp/.buildx-cache
          mv /tmp/.buildx-cache-new /tmp/.buildx-cache

  notify-slack:
    if: github.event_name != 'pull_request'
    needs: [prep, build-and-upload-image]
    runs-on: ubuntu-latest
    steps:
      - name: Post to a Slack channel
        id: slack
        uses: slackapi/slack-github-action@v1.16.0
        with:
          channel-id: "docker-images-${{ needs.prep.outputs.repositoryName }}"
          slack-message: "New image pushed: ${{ needs.prep.outputs.taggedImage }} built from <https://github.com/ideacrew/${{ needs.prep.outputs.repositoryName }}/commit/${{ needs.prep.outputs.shortSha }}|${{ needs.prep.outputs.shortSha }}> on `${{ needs.prep.outputs.branchName }}`"
        env:
          SLACK_BOT_TOKEN: ${{ secrets.YELLR_BOT_TOKEN }}