reference a tag

.gitea/workflows/hugobuild.yaml

@@ -0,0 +1,33 @@
+name: GitHub Pages
+
+on:
+  push:
+    tags:        
+    - '*'
+
+jobs:
+  deploy:
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: true  # Fetch Hugo themes (true OR recursive)
+          fetch-depth: 0    # Fetch all history for .GitInfo and .Lastmod
+
+      - name: Setup Hugo
+        uses: peaceiris/actions-hugo@v3
+        with:
+          hugo-version: '0.156.0'
+          # extended: true
+
+      - name: Build
+        run: hugo --minify --destination ./public
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: Dockerfile
+          push: true
+          tags: "docker.paulmontag.info/blog:${{ github.ref }}"
+

Dockerfile

@@ -0,0 +1,3 @@
+FROM nginx
+
+COPY ./public /usr/share/nginx/html