build multi-platform docker images

Author: matthieugouel

.github/workflows/docker.yml

@@ -1,4 +1,4 @@
-name: Create and publish a Docker image
+name: Publish Docker images
 on:
   workflow_run:
     workflows: [ "Rust" ]
@@ -11,39 +11,43 @@ env:
   IMAGE_NAME: ${{ github.repository }}
 
 jobs:
-  build-and-push-image:
-    runs-on: ubuntu-latest
-    if: ${{ github.event.workflow_run.conclusion == 'success' }}
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-24.04, ubuntu-24.04-arm]
 
     permissions:
       contents: read
       packages: write
       attestations: write
       id-token: write
 
+    runs-on: ${{ matrix.os }}
+    if: ${{ github.event.workflow_run.conclusion == 'success' }}
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
 
       - name: Log in to the Container registry
-        uses: docker/login-action@327cd5a69de6c009b9ce71bce8395f28e651bf99
+        uses: docker/login-action@v3
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Extract metadata (tags, labels) for Docker
         id: meta
-        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804
+        uses: docker/metadata-action@v5
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
 
-      - name: Sync theme submodule 
-        run: git submodule sync && git submodule update --init --recursive
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
 
       - name: Build and push Docker image
         id: push
-        uses: docker/build-push-action@471d1dc4e07e5cdedd4c2171150001c434f0b7a4
+        uses: docker/build-push-action@v6
         with:
           context: .
           push: true