build_docker.yml

name: Build and push docker image

on:
  workflow_dispatch:
  push:
    tags:
      - 'v*'

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  docker:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
    steps:
    - name: Check out source code
      uses: actions/checkout@v3

    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v2
        
    - name: Docker meta
      id: meta
      uses: docker/metadata-action@v4
      with:
        images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

    - name: Login to GitHub Container Registry
      uses: docker/login-action@v2
      with:
        registry: ${{ env.REGISTRY }}
        username: ${{ github.actor }}
        password: ${{ secrets.GITHUB_TOKEN }}

    - name: Build and push
      #if: startsWith(github.ref, 'refs/tags/')
      uses: docker/build-push-action@v4
      with:
        push: true
        context: .
        file: ./docker/Dockerfile.cpu
        tags: ${{ steps.meta.outputs.tags }}
        build-args: |
          "GITHUB_ACTIONS=${GITHUB_ACTIONS}"