initial

.github/workflows/docker.yml

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+name: Docker Build and Push
+
+on:
+  push:
+    branches:
+      - main
+      - dev
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Login to Docker Hub
+        run: echo ${{ secrets.DOCKERHUB_PASSWORD }} | docker login -u ${{ secrets.DOCKERHUB_USERNAME }} --password-stdin
+
+      - name: Build and push Docker image
+        env:
+          DOCKER_IMAGE_NAME: your-docker-image-name
+        run: |
+          if [ "${{ github.ref }}" == "refs/heads/main" ]; then
+            DOCKER_TAG="latest"
+          elif [ "${{ github.ref }}" == "refs/heads/dev" ]; then
+            DOCKER_TAG="dev"
+          else
+            DOCKER_TAG="other"
+          fi
+          
+          docker build -t $DOCKER_IMAGE_NAME .
+          docker tag $DOCKER_IMAGE_NAME:latest ${{ secrets.DOCKERHUB_USERNAME }}/$DOCKER_IMAGE_NAME:$DOCKER_TAG
+          docker push ${{ secrets.DOCKERHUB_USERNAME }}/$DOCKER_IMAGE_NAME:$DOCKER_TAG