ci: multi-platform image output

Author: LouisHaftmann

.github/workflows/ci-cd.yml

@@ -84,10 +84,17 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
       - name: Build and push
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: .
+          platforms: linux/amd64,linux/arm64
           push: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}

.github/workflows/release.yml

@@ -57,6 +57,7 @@ jobs:
 
           VERSION=$(git describe --tags --abbrev=0 | sed 's/^v//')
           sed -E "s/^appVersion:.+$/appVersion: '$VERSION'/" -i install/kubernetes/github-actions-cache-server/Chart.yaml
+          git stage install/kubernetes/github-actions-cache-server/Chart.yaml
           git commit --amend --no-edit
 
           echo "RELEASE_REF=$(git rev-parse HEAD)" >> "$GITHUB_OUTPUT"
@@ -116,10 +117,17 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
       - name: Build and push
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: .
           push: true
+          platforms: linux/amd64,linux/arm64
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}