feat(ci): build native amd64 and arm64 container images with unified manifest list

.github/workflows/ci.yml

@@ -1,4 +1,4 @@
-name: CI & Container Build
+name: CI & Multi-Arch Container Release
 
 on:
   push:
@@ -28,31 +28,61 @@ jobs:
       - name: Run native benchmark verification
         run: cargo run --release -- --bench --bench-records 200
 
-  container-build:
-    name: Build & Publish Container
+  build-amd64:
+    name: Build AMD64 Container
     runs-on: ubuntu-latest
     needs: test
+    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
     steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
-      - name: Log in to GitHub Container Registry
-        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
-        uses: docker/login-action@v3
+      - uses: actions/checkout@v4
+      - uses: docker/setup-buildx-action@v3
+      - uses: docker/login-action@v3
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
+      - uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./Dockerfile
+          push: true
+          tags: ghcr.io/${{ github.repository }}:${{ github.sha }}-amd64
 
-      - name: Build and push Docker image
-        uses: docker/build-push-action@v5
+  build-arm64:
+    name: Build ARM64 Container
+    runs-on: ubuntu-24.04-arm
+    needs: test
+    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+    steps:
+      - uses: actions/checkout@v4
+      - uses: docker/setup-buildx-action@v3
+      - uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - uses: docker/build-push-action@v5
         with:
           context: .
           file: ./Dockerfile
-          push: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' }}
-          tags: |
-            ghcr.io/${{ github.repository }}:latest
-            ghcr.io/${{ github.repository }}:${{ github.sha }}
+          push: true
+          tags: ghcr.io/${{ github.repository }}:${{ github.sha }}-arm64
+
+  publish-manifest:
+    name: Publish Multi-Arch Manifest
+    runs-on: ubuntu-latest
+    needs: [build-amd64, build-arm64]
+    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+    steps:
+      - uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Create and push multi-arch manifest
+        run: |
+          docker buildx imagetools create \
+            -t ghcr.io/${{ github.repository }}:latest \
+            -t ghcr.io/${{ github.repository }}:${{ github.sha }} \
+            ghcr.io/${{ github.repository }}:${{ github.sha }}-amd64 \
+            ghcr.io/${{ github.repository }}:${{ github.sha }}-arm64