Use docker meta

.forgejo/workflows/build_deploy.yaml

@@ -5,10 +5,6 @@ on:
     branches:
       - main
 
-env:
-  REGISTRY: git.unjx.de
-  LATEST_IMAGE: ${{ env.REGISTRY }}/${{ github.repository }}:latest
-
 jobs:
   prepare:
     runs-on: ubuntu-latest
@@ -17,6 +13,20 @@ jobs:
         uses: actions/checkout@v4
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: git.unjx.de/${{ github.repository }}
+          tags: |
+            type=ref,event=branch
+            type=ref,event=pr
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+          labels: |
+            org.opencontainers.image.title=GoDash
+            org.opencontainers.image.description=Blasing fast start page for your services
+            org.opencontainers.image.vendor=Unjx
       - name: Login to Forgejo Container Registry
         uses: docker/login-action@v3
         with:
@@ -26,7 +36,7 @@ jobs:
       - name: Build
         uses: docker/build-push-action@v6
         with:
-          tags: ${{ env.LATEST_IMAGE }}
+          tags: ${{ steps.meta.outputs.tags }}
           build-args: |
             V_GOLANG=${{ vars.V_GOLANG }}
             V_NODE=${{ vars.V_NODE }}