Create docker-build-push.yml

.github/workflows/docker-build-push.yml

@@ -0,0 +1,35 @@
+name: Docker Image Build and Push CI
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to DockerHub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Extract Docker base image tag
+        id: extract_tag
+        run: |
+          TAG=$(grep '^FROM ' Dockerfile | awk -F ':' '{print $2}')
+          echo "TAG=$TAG" >> $GITHUB_ENV
+
+      - name: Build and push Docker image
+        run: |
+          docker build . --file Dockerfile --tag realsidsun/replicator-kuma:$TAG
+          docker build -t your-dockerhub-username/bar:$TAG .
+          docker push your-dockerhub-username/bar:$TAG