# Builds a Docker image from with latest tag when master branch is updated
# The publishes it to GitHub container registry as a package
name: Build and Publish Docker Image to GHCR
on:
  workflow_dispatch:
  push:
    branches: ['master']
env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}
jobs:
  build-and-push-image:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
    steps:
      - name: Checkout repository
        uses: actions/checkout@v2
        
      - name: Login to GitHub Container Registry
        uses: docker/login-action@v1
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GHCR_TOKEN }}      
      - name: Build and push Docker image
        uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
        with:
          context: .
          push: true
          tags: latest