docker-image.yml

name: Docker Image CI

on:
    create:
    workflow_dispatch:
          
env:
    DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
    DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
    DOCKER_NAMESPACE: ${{ secrets.DOCKER_NAMESPACE }}
    DOCKER_REPOSITORY: ${{ secrets.DOCKER_REPOSITORY }}
    
jobs:
    push_to_registry:
        if: ${{ startsWith(github.ref, 'refs/tags') }}
        name: Push Docker image to Docker Hub
        runs-on: ubuntu-latest
        steps:
        - name: Check out the repo
          uses: actions/checkout@v3
        
        - name: Log in to Docker Hub
          uses: docker/login-action@v2.0.0
          with:
            username: ${{ env.DOCKER_USERNAME }}
            password: ${{ env.DOCKER_PASSWORD }}
        
        - name: Extract metadata (tags, labels) for Docker
          id: client_meta
          uses: docker/metadata-action@v4.0.1
          with:
            images: ${{ env.DOCKER_NAMESPACE }}/${{ env.DOCKER_REPOSITORY }}
        
        - name: Build and push Docker image
          uses: docker/build-push-action@v3.0.0
          with:
            context: .
            file: ./Dockerfile
            push: true
            tags: ${{ steps.client_meta.outputs.tags }}