Docker action

.github/workflows/docker-image.yml

@@ -0,0 +1,68 @@
+name: Docker Image CI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+
+  build:
+    runs-on: ubuntu-latest
+    env:
+      DH_REGISTRY: docker.io
+      GH_REGISTRY: ghcr.io
+      IMAGE_NAME: ${{ github.repository }}
+      REPOSITORY: ${{ github.event.repository.name }}
+      DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+
+    - name: Provide default tag username
+      if: ${{ env.DOCKER_USERNAME == '' }}
+      run: |
+          echo "DOCKER_USERNAME=remote" >> $GITHUB_ENV
+
+    - name: Build the Docker image
+      run: docker build . --file Dockerfile --tag "$DOCKER_USERNAME/$REPOSITORY:latest"
+
+    - name: Log in to Docker Hub
+      uses: docker/login-action@v1
+      if: github.ref == 'refs/heads/master' && github.event_name == 'push'
+      with:
+        registry: ${{ env.DH_REGISTRY }}
+        username: ${{ env.DOCKER_USERNAME }}
+        password: ${{ secrets.DOCKER_PASSWORD }}
+
+    - name: Push to Docker Hub
+      if: github.ref == 'refs/heads/master' && github.event_name == 'push'
+      run: docker push "$DOCKER_USERNAME/$REPOSITORY:latest"
+    
+    - name: Log in to the Container registry
+      uses: docker/login-action@v1
+      with:
+        registry: ${{ env.GH_REGISTRY }}
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+    
+    - name: Extract metadata (tags, labels) for Docker
+      id: meta
+      uses: docker/metadata-action@v3
+      with:
+        images: ${{ env.GH_REGISTRY }}/${{ env.IMAGE_NAME }}
+
+    - name: Push to GitHub
+      uses: docker/build-push-action@v2
+      if: github.event_name == 'push'
+      with:
+        context: .
+        push: true
+        tags: ${{ steps.meta.outputs.tags }}
+        labels: ${{ steps.meta.outputs.labels }}
+