addet workflows?

.forgejo/workflows/docker.yml

@@ -0,0 +1,34 @@
+name: Build and Push Docker Image
+
+on:
+  push:
+    branches:
+      - main
+  schedule:
+    # Run every Sunday at 00:00 UTC (adjust cron syntax as needed)
+    - cron: "0 0 * * 0"
+
+jobs:
+  docker:
+    runs-on: docker
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Log in to Docker Registry
+        uses: docker/login-action@v3
+        with:
+          registry: git.k4li.de
+          # username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.FORGEJO_ACCESSTOKEN  }}
+
+      - name: Build and Push Docker Image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./Dockerfile
+          platforms: linux/amd64
+          push: true
+          tags: |
+            docker/caddy:latest
+            docker/caddy:${{ github.sha }}