container-build.yml

name: Docker Image Build CI

on:
  push:
    branches:
    - main
    - deploy-*
    tags: 
    - v*.*.*

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
      with:
        fetch-depth: 1

    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v1
      with:
        version: v0.6.0
        buildkitd-flags: --debug

    - name: Login to DockerHub
      uses: docker/login-action@v1 
      with:
        registry: ghcr.io
        username: ${{ github.actor }}
        # a new GITHUB_TOKEN is generated automatically by Github for each workflow
        password: ${{ secrets.GITHUB_TOKEN }}

    - name: Docker meta
      id: meta
      uses: docker/metadata-action@v3
      with:
        images: |
          ghcr.io/${{ github.repository }}
        tags: |
          type=semver,pattern={{version}}
          type=ref,event=pr
          type=ref,event=branch
          type=sha,format=long

    - name: Build and push
      uses: docker/build-push-action@v2
      with:
        context: .
        push: true
        file: Dockerfile
        cache-from: type=registry,ref=ghcr.io/${{ github.repository }}:buildcache
        cache-to: type=registry,ref=ghcr.io/${{ github.repository }}:buildcache,mode=max
        tags: ${{ steps.meta.outputs.tags }}
        labels: ${{ steps.meta.outputs.labels }}