docker-publish.yml

name: Docker

on:
  push:
    branches:
      - master
    tags:
      - v*
  pull_request:
    branches:
      - master
      
env:
  IMAGE_ID: ghcr.io/${{ github.repository }}

jobs:
  push:
    runs-on: ubuntu-latest

    permissions:
      contents: read
      packages: write

    steps:
      - name: Check Out Repo 
        uses: actions/checkout@v2
        with:
          submodules: true

      - name: Docker meta
        id: meta
        uses: crazy-max/ghaction-docker-meta@v2
        with:
          images: ${{ env.IMAGE_ID }}
          tags: |
            type=raw,value=latest,enable=${{ endsWith(github.ref, 'master') }}
            type=ref,event=tag
          flavor: |
            latest=false

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

      - name: Build and push
        uses: docker/build-push-action@v2
        with:
          context: .
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}