newMain.yml

# This is a basic workflow to help you get started with Actions

name: CI to Docker Hub

# Controls when the workflow will run
on:
  # Triggers the workflow on push or pull request events but only for the "main" branch
  push:
    tags: 
      - "v*.*.*"
    branches: [ "main" ]
#  pull_request:
#    branches: [ "main" ]

  # Allows you to run this workflow manually from the Actions tab
  workflow_dispatch:

# A workflow run is made up of one or more jobs that can run sequentially or in parallel
jobs:
  # This workflow contains a single job called "build"
  build:
    # The type of runner that the job will run on
    runs-on: ubuntu-latest

    # Steps represent a sequence of tasks that will be executed as part of the job
    steps:
    
    - name: Check Out Repo
      uses: actions/checkout@v3
      
    - name: Login to Docker Hub
      if: github.event_name != 'pull_request'
      uses: docker/login-action@v1
      with:
        registry: ghcr.io
        username: ${{ github.actor }}
        password: ${{ secrets.GITHUB_TOKEN }}
#        username: ${{ secrets.DOCKER_HUB_USERNAME }}
#        password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
        
    - name: Set up Docker Buildx
      id: buildx
      uses: docker/setup-buildx-action@v1
          
    - name: Cache Docker layers
      uses: actions/cache@v2
      with: 
        path: /tmp/.buildx-cache
        key: ${{ runner.os }}-buildx-${{ github.sha }}
        restore-keys: |
          ${{ runner.os }}-buildx-

    - name: Build and push
      id: docker_build
      uses: docker/build-push-action@v2
      with:
        context: ./
        file: ./Dockerfile
        builder: ${{ steps.buildx.outputs.name }}
        push: true
        tags: ${{ secrets.DOCKER_HUB_USERNAME }}/simplewhale:latest
        cache-from: type=local,src=/tmp/.buildx-cache
        cache-to: type=local,dest=/tmp/.buildx-cache
        
    - name: Image digest
      run: echo ${{ steps.docker_build.outputs.digest }}



      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
#      - uses: actions/checkout@v3

      # Runs a single command using the runners shell
#      - name: Run a one-line script
#        run: echo Hello, world!

      # Runs a set of commands using the runners shell
#      - name: Run a multi-line script
#        run: |
#          echo Add other actions to build,
#          echo test, and deploy your project.