Workflow cache

.gitea/workflows/build-and-push.yaml

@@ -49,6 +49,14 @@ jobs:
           username: ${{ secrets.REGISTRY_USER }}          # e.g. admin
           password: ${{ secrets.REGISTRY_PASSWORD }}      # e.g. <api‑token>
 
+      - name: Cache Docker layers
+        uses: actions/cache@v3
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-
+
       # ------------------------------------------------------------------
       # 4. Build the Docker image
       # ------------------------------------------------------------------
@@ -67,6 +75,8 @@ jobs:
           build-args: |
             # Add any build args here
             # ARG_NAME=VALUE
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,dest=/tmp/.buildx-cache
       
       # ------------------------------------------------------------------
       # 5. Push the image to the registry
@@ -81,6 +91,8 @@ jobs:
             ${{ vars.REGISTRY_HOST }}/${{ steps.github_repository_to_lowercase.outputs.lowercase }}:${{ github.sha }}
             ${{ vars.REGISTRY_HOST }}/${{ steps.github_repository_to_lowercase.outputs.lowercase }}:${{ github.ref_name }}
             ${{ vars.REGISTRY_HOST }}/${{ steps.github_repository_to_lowercase.outputs.lowercase }}:latest
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,dest=/tmp/.buildx-cache
       
       # ------------------------------------------------------------------
       # 6. (Optional) Clean up local Docker cache