Update build.yml

.github/workflows/build.yml

@@ -45,15 +45,15 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - name: Metadata
-        id: tags
-        run: |
-          if [[ $GITHUB_REF == 'refs/tags/'* ]]; then
-            TAGS='["mochimqtt/server:latest","mochimqtt/server:'${GITHUB_REF/refs\/tags\//}'"]'
-          else
-            TAGS='["mochimqtt/server:latest"]'
-          fi
-          echo "name=tags" >> $TAGS
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: mochimqtt/server
+          tags: |
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=raw,value=latest,enable=${{ endsWith(github.ref, 'main') }}
       - name: Login to Docker Hub
         uses: docker/login-action@v3
         with:
@@ -67,4 +67,5 @@ jobs:
           context: .
           file: ./Dockerfile
           push: true
-          tags: ${{ steps.tags.outputs.tags }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}