Git Actions - Docker login/build/push sample

docker._yml

name: Docker Build Example
on:
  push:
    branches: [ main ]
  pull_request:
    branches: [ main ]

  workflow_dispatch:

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
        
      - name: docker login
        uses: docker/login-action@v1
        //use git secrets from repo setting
        with:
          username: ${{ secrets.DOCKER_USER }}
          password: ${{ secrets.DOCKER_PASSWORD }}
      - name: docker build
        run: |
          docker build -t myimage:latest .
      - name: docker push
        run: |
          docker push myimage:latest