Update docker-image.yml

Author: guoling2008

.github/workflows/docker-image.yml

@@ -16,3 +16,16 @@ jobs:
     - uses: actions/checkout@v4
     - name: Build the Docker image
       run: docker build . --file Dockerfile --tag my-image-name:$(date +%s)
+    -
+      name: Login to DockerHub
+      uses: docker/login-action@v1 
+      with:
+        username: ${{ secrets.DOCKERHUB_USERNAME }}
+        password: ${{ secrets.DOCKERHUB_TOKEN }}
+    -
+      name: Build and push
+      id: docker_build
+      uses: docker/build-push-action@v2
+      with:
+        push: true
+        tags: ${{ secrets.DOCKERHUB_USERNAME }}/go-mcp-postgres:latest