publish.yml

name: publish

on:
  workflow_call:
    inputs:
      docker_files_name:
        description: Dockerfile
        required: true
        type: string
      image_name:
        description: Docker image
        required: true
        type: string
      version_substr:
        description: Version substring
        required: true
        type: string

env:
  VERSION: ${{ vars.VERSION }}
  P4NAME: ${{ vars.P4NAME }}
  P4PORT: ${{ vars.P4PORT }}
  P4USER: ${{ secrets.P4USER }}
  P4PASSWD: ${{ secrets.P4PASSWD }}
  P4HOME: ${{ vars.P4HOME }}
  P4ROOT: ${{ vars.P4HOME }}/${{ vars.P4NAME }}
  CASE_INSENSITIVE: ${{ vars.CASE_INSENSITIVE }}
  IMAGE_NAME: ${{ inputs.image_name }}

jobs:

  # Push image to GitHub Packages.
  # See also https://docs.docker.com/docker-hub/builds/
  # TAG_SUFFIX="nightly-$(date +'%Y%m%d')"
  publish:
    # Ensure test job passes before pushing image.
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2

      - name: Build image
        run: |
            docker build \
             -t ${{ inputs.image_name }} \
             --build-arg VERSION=$VERSION \
             --build-arg P4NAME=$P4NAME \
             --build-arg P4PORT=$P4PORT \
             --build-arg P4USER=$P4USER \
             --build-arg P4PASSWD=$P4PASSWD \
             --build-arg P4HOME=$P4HOME \
             --build-arg P4ROOT=$P4ROOT \
             --build-arg CASE_INSENSITIVE=$CASE_INSENSITIVE \
             -f ./build/${{ inputs.docker_files_name }} ./build

      - name: Log into registry
        run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin

      - name: Set current datetime as env variable
        env:
          TZ: 'Asia/Tokyo'
        run: echo "CURRENT_DATETIME=$(date +'%Y%m%d')" >> $GITHUB_ENV

      - name: Push image
        run: |
          IMAGE_ID=ghcr.io/${{ github.repository }}/${{ inputs.image_name }}

          # Convert to lowercase.
          IMAGE_ID=$(echo $IMAGE_ID | tr '[A-Z]' '[a-z]')

          # If the event that triggered this workflow is a schedule event, then tag the image as "nightly".
          TAG_SUFFIX=""
          if [ "${{ github.event_name }}" == "schedule" ]; then
            TAG_SUFFIX="nightly"
            docker tag ${{ inputs.image_name }} $IMAGE_ID:${{ inputs.version_substr }}$TAG_SUFFIX
            docker push $IMAGE_ID:${{ inputs.version_substr }}$TAG_SUFFIX  
          fi

          TAG_SUFFIX="latest"
          docker tag ${{ inputs.image_name }} $IMAGE_ID:$VERSION.${{ inputs.version_substr }}$GITHUB_RUN_NUMBER
          docker push $IMAGE_ID:$VERSION.${{ inputs.version_substr }}$GITHUB_RUN_NUMBER

          docker tag ${{ inputs.image_name }} $IMAGE_ID:${{ inputs.version_substr }}$TAG_SUFFIX
          docker push $IMAGE_ID:${{ inputs.version_substr }}$TAG_SUFFIX