Multi architecture build

.gitea/workflows/docker-publish.yaml

@@ -23,10 +23,14 @@ jobs:
 
       - name: Get version
         id: get_version
-        run: echo "::set-output name=version::$(cat VERSION)"
+        run: echo "version=$(cat VERSION)" >> $GITHUB_OUTPUT
+
+      # Required for cross-compiling ARM64 images on x86_64 runners
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v1
+        uses: docker/setup-buildx-action@v3
 
       - name: Login to Docker Hub
         uses: docker/login-action@v3
@@ -35,26 +39,23 @@ jobs:
           username: ninluc
           password: ${{ secrets.REGISTRY_TOKEN }}
 
-      - name: Cache Docker layers (registry-backed)
+      - name: Build and push multi-arch image
-        uses: actions/cache@v4
+        uses: docker/build-push-action@v6
-        with:
-          path: /tmp/.buildx-cache
-          key: buildx-cache-${{ github.sha }}
-          restore-keys: |
-            buildx-cache-
-
-      - name: Build and push
-        uses: docker/build-push-action@v2
         with:
           context: .
           file: Dockerfile
+          platforms: linux/amd64,linux/arm64
           push: true
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
           build-args: |
             VITE_REVERB_APP_KEY=${{ secrets.REVERB_APP_KEY }}
             VITE_REVERB_HOST=perceptron.matthiasg.dev
             VITE_REVERB_PORT=443
             VITE_REVERB_SCHEME=https
-          tags: git.matthiasg.dev/ninluc/perceptron-viewer/perceptron-viewer:latest, git.matthiasg.dev/ninluc/perceptron-viewer/perceptron-viewer:${{ steps.get_version.outputs.version }}
+          tags: |
+            git.matthiasg.dev/ninluc/perceptron-viewer/perceptron-viewer:latest
+            git.matthiasg.dev/ninluc/perceptron-viewer/perceptron-viewer:${{ steps.get_version.outputs.version }}
 
   # notify:
   #   needs: build