docker-image.yml

name: docker-markhazletonsample

on:
  push:
    branches: [ main ]
    paths-ignore:
      - README.md
      - .vscode/**
      - .gitignore
  pull_request:
    branches: [ main ]
    paths-ignore:
      - README.md
      - .vscode/**
      - .gitignore
  workflow_dispatch:      

jobs:

  build:

    runs-on: ubuntu-latest

    steps:
    - name: Checkout
      uses: actions/checkout@v4

    - name: Set up QEMU
      uses: docker/setup-qemu-action@v2
      with:
        node-version: 16

    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v3
      with:
        node-version: 16

    - name: Login to DockerHub
      uses: docker/login-action@v2
      with:
        username: ${{ secrets.DOCKERHUB_USERNAME }}
        password: ${{ secrets.DOCKERHUB_TOKEN }}

    - name: Lint Dockerfile
      run: docker run --rm -i hadolint/hadolint < ./Mwh.Sample.Web/Dockerfile

    - name: Cache Docker layers
      id: docker-cache
      uses: actions/cache@v3
      with:
        path: /tmp/.buildx-cache
        key: ${{ runner.os }}-buildx-${{ github.sha }}-${{ hashFiles('**/Dockerfile', '**/Mwh.Sample.Web/**/*') }}
        restore-keys: |
          ${{ runner.os }}-buildx-

    - name: Show Docker info
      run: docker info

    - name: Show Buildx version
      run: docker buildx version

    - name: Build and push
      id: docker_image
      uses: docker/build-push-action@v5
      with:
        context: .
        file: ./Mwh.Sample.Web/Dockerfile
        push: true
        pull: true
        tags: |
          ${{ secrets.DOCKERHUB_USERNAME }}/mwhsampleweb:latest
          ${{ secrets.DOCKERHUB_USERNAME }}/mwhsampleweb:${{ github.run_number }}
        cache-from: type=local,src=/tmp/.buildx-cache
        cache-to: type=local,dest=/tmp/.buildx-cache

    - name: Cleanup
      run: |
        docker builder prune -f
        docker system prune -f

    - name: Set Docker Image Output
      run: echo "image=${{ secrets.DOCKERHUB_USERNAME }}/mwhsampleweb:latest" >> $GITHUB_ENV
      shell: bash