fix cicd workflow

Author: matthieugouel

.github/workflows/cicd.yml

@@ -22,20 +22,24 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-24.04, ubuntu-24.04-arm]
+        os: [{name: ubuntu-24.04, arch: amd64}, {name: ubuntu-24.04-arm, arch: arm64}]
 
     permissions:
       contents: read
       packages: write
-      attestations: write
       id-token: write
 
-    runs-on: ${{ matrix.os }}
+    runs-on: ${{ matrix.os.name }}
     needs: [ tests ]
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
 
+      - name: Prepare
+        run: |
+          platform=linux/${{ matrix.os.arch }}
+          echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV
+
       - name: Log in to the Container registry
         uses: docker/login-action@v3
         with:
@@ -53,18 +57,75 @@ jobs:
         uses: docker/setup-buildx-action@v3
 
       - name: Build and push Docker image
-        id: push
+        id: build
         uses: docker/build-push-action@v6
         with:
           context: .
           push: true
           provenance: false
-          tags: ${{ steps.meta.outputs.tags }}
+          platforms: linux/${{ matrix.os.arch }}
+          tags: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           labels: ${{ steps.meta.outputs.labels }}
+          outputs: type=image,push-by-digest=true,name-canonical=true,push=true
+
+      - name: Export digest
+        run: |
+          mkdir -p ${{ runner.temp }}/digests
+          digest="${{ steps.build.outputs.digest }}"
+          touch "${{ runner.temp }}/digests/${digest#sha256:}"
+          ls -lah ${{ runner.temp }}/digests/
+
+      - name: Upload digest
+        uses: actions/upload-artifact@v4
+        with:
+          name: digests-${{ env.PLATFORM_PAIR }}
+          path: ${{ runner.temp }}/digests/*
+          if-no-files-found: error
+          retention-days: 1
+
+  manifests:
+    permissions:
+      contents: read
+      packages: write
+      id-token: write
+
+    runs-on: ubuntu-latest
+    needs: [ docker ]
+    steps:
+      - name: Download digests
+        uses: actions/download-artifact@v4
+        with:
+          path: ${{ runner.temp }}/digests
+          pattern: digests-*
+          merge-multiple: true
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
 
-      - name: Generate artifact attestation
-        uses: actions/attest-build-provenance@v2
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
         with:
-          subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME}}
-          subject-digest: ${{ steps.push.outputs.digest }}
-          push-to-registry: true
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=ref,event=branch
+            type=ref,event=pr
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+
+      - name: Create manifest list and push
+        working-directory: ${{ runner.temp }}/digests
+        run: |
+          docker buildx imagetools create $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
+            $(printf '${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}@sha256:%s ' *)
+
+      - name: Inspect image
+        run: |
+          docker buildx imagetools inspect ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ steps.meta.outputs.version }}