Build docker image when pushed to master

Author: mesudip

.github/workflows/docker-image.yml

@@ -4,35 +4,46 @@ on:
   push:
     tags:
       - '*'
+    branches:
+      - master
 
 jobs:
   docker:
     runs-on: ubuntu-latest
     steps:
-      -
-        name: Checkout
+      - name: Checkout
         uses: actions/checkout@v3
-      -
-        name: Set up QEMU
+
+      - name: Set up QEMU
         uses: docker/setup-qemu-action@v2
-      -
-        name: Set up Docker Buildx
+
+      - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
-      -
-        name: Login to DockerHub
+
+      - name: Login to DockerHub
         uses: docker/login-action@v2
         with:
           username: mesudip
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
-      -
-        name: Build and push
+      - name: Build and push for tags
+        if: startsWith(github.ref, 'refs/tags/')
         uses: docker/build-push-action@v3
         with:
           file: Dockerfile
           context: .
-          platforms: linux/amd64, linux/arm64
+          platforms: linux/amd64,linux/arm64
           push: true
           tags: |
             mesudip/nginx-proxy:${{ github.ref_name }}
             mesudip/nginx-proxy:latest
+
+      - name: Build and push for main branch
+        if: github.ref == 'refs/heads/main'
+        uses: docker/build-push-action@v3
+        with:
+          file: Dockerfile
+          context: .
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: mesudip/nginx-proxy:${{ github.sha }}