Github Actions example: .github/workflows/build.yml

build.yml

name: Docker Image CI
on:
  push:
    branches: [ "master" ]
jobs:
  build:
    permissions: write-all
    runs-on: ubuntu-latest
    steps:
    - 
      name: Checkout
      uses: actions/checkout@v3
    - 
      name: Login to Github Container Registry
      uses: docker/login-action@v2
      with:
        registry: ghcr.io
        username: ${{ github.actor }}
        password: ${{ secrets.GITHUB_TOKEN }}
    -
      name: Build and push (front)
      uses: docker/build-push-action@v4
      with:
        push: true
        file: Dockerfile.frontend
        tags: ghcr.io/masious/my-front
        cache-from: type=registry,ref=ghcr.io/masious/my-front
        cache-to: type=inline