docker-ci.yml

name: Docker Image CI

on:
  push:
    branches:
      - main
      - develop
    tags:
      - '*'

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2

      - name: Prepare
        id: prep
        run: |
          OWNER=$(echo "${{ github.repository_owner }}" | tr '[:upper:]' '[:lower:]')
          DOCKER_IMAGE=ghcr.io/$OWNER/hkn-website
          if [[ $GITHUB_REF == refs/tags/* ]]; then
            VERSION=${GITHUB_REF#refs/tags/}
            TAGS="$DOCKER_IMAGE:$VERSION,$DOCKER_IMAGE:latest"
          elif [[ $GITHUB_REF == refs/heads/main ]]; then
            VERSION=$(git rev-parse --short ${{ github.sha }})
            TAGS="$DOCKER_IMAGE:$VERSION,$DOCKER_IMAGE:latest"
          elif [[ $GITHUB_REF == refs/heads/develop ]]; then
            VERSION=dev-$(git rev-parse --short ${{ github.sha }})
            TAGS="$DOCKER_IMAGE:$VERSION"
          else
            VERSION=$(git rev-parse --short ${{ github.sha }})
            TAGS="$DOCKER_IMAGE:$VERSION"
          fi
          echo ::set-output name=version::$VERSION
          echo ::set-output name=tags::$TAGS
        shell: bash

      - name: Log in to GitHub Container Registry
        uses: docker/login-action@v1
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push
        uses: docker/build-push-action@v2
        with:
          context: .
          file: ./Dockerfile
          push: true
          tags: ${{ steps.prep.outputs.tags }}