edit build.yml - add metadata step

.gitea/workflows/build.yml

@@ -41,15 +41,22 @@ jobs:
         username: ${{ secrets.REGISTRY_USER }}
         password: ${{ secrets.REGISTRY_TOKEN }}
 
+    - name: Extract metadata (tags, labels) for Docker image
+      id: metadata
+      uses: docker/metadata-action@v3
+      with:
+        images: git.coopgo.io/${{gitea.repository}}
+        tags: ${{gitea.ref_name}}
+        flavor: |
+          latest=auto
+
     - name: Build and push
       uses: docker/build-push-action@v5
       with:
         context: .
         push: true
         tags: |
-          git.coopgo.io/${{gitea.repository}}:${{ gitea.ref_name }}
-        flavor: |
-          latest=auto
+          ${{ steps.metadata.outputs.tags }}
         build-args: |		
           ACCESS_TOKEN_USR=${{gitea.actor}}
           ACCESS_TOKEN_PWD=${{gitea.token}}