docker-publish.yml

name: build and publish image to ghcr

on:
  push:
    # Publish `master` as Docker `latest` image.
    branches:
      - master

    # Publish `v1.2.3` tags as releases.
    tags:
      - v*

env:
  IMAGE_NAME: "gluo-meme-generator"

jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2

      - name: Run tests
        run: |
          docker-compose --file docker-compose-test.yml build
          docker-compose --file docker-compose-test.yml up -d
          sleep 3
          curl http://localhost:8080/index.php
          docker-compose --file docker-compose-test.yml down

  push:
    needs: test

    runs-on: ubuntu-latest
    if: github.event_name == 'push'

    steps:
      - uses: actions/checkout@v2

      - name: Build Apache image
        run: docker build apache/ --file apache/Dockerfile --tag $IMAGE_NAME

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

      - name: Push Apache image
        run: |
          IMAGE_ID=ghcr.io/gluobe/$IMAGE_NAME

          # Change all uppercase to lowercase
          IMAGE_ID=$(echo $IMAGE_ID | tr '[A-Z]' '[a-z]')
          # Strip git ref prefix from version
          VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')
          # Strip "v" prefix from tag name
          [[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION | sed -e 's/^v//')
          # Use Docker `latest` tag convention
          [ "$VERSION" == "master" ] && VERSION=latest

          echo IMAGE_ID=$IMAGE_ID
          echo VERSION=$VERSION

          docker tag $IMAGE_NAME $IMAGE_ID:$VERSION
          docker push $IMAGE_ID:$VERSION