✨ Add GitHub Actions workflow for building and pushing multi-architecture Docker images

.github/workflows/docker-build-multi.yml

@@ -0,0 +1,93 @@
+name: Build and Push Docker Images (Multi-Arch)
+
+on:
+  push:
+    branches: [main]
+    tags: ['v*']
+  pull_request:
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE: ${{ github.repository }}
+
+jobs:
+  # Build platform-specific images in parallel
+  build:
+    name: Build ${{ matrix.platform }}
+    runs-on: ${{ matrix.runner }}
+    strategy:
+      matrix:
+        include:
+          - platform: linux/amd64
+            runner: ubuntu-latest
+            platform-suffix: amd64
+          - platform: linux/arm64
+            runner: macos-latest
+            platform-suffix: arm64
+
+    permissions:
+      contents: read
+      packages: write
+
+    services:
+      redis:
+        image: redis:7-alpine
+        ports: ['6379:6379']
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: docker/setup-buildx-action@v3
+
+      - uses: docker/login-action@v3
+        if: github.event_name != 'pull_request'
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - uses: docker/build-push-action@v5
+        with:
+          context: .
+          platforms: ${{ matrix.platform }}
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ env.REGISTRY }}/${{ env.IMAGE }}:${{ matrix.platform-suffix }}-${{ github.sha }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+  # Create and push the multi-platform manifest
+  manifest:
+    name: Create and Push Manifest
+    runs-on: ubuntu-latest
+    needs: build
+    if: github.event_name != 'pull_request'
+
+    permissions:
+      contents: write
+      packages: write
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: docker/setup-buildx-action@v3
+
+      - uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Create and push manifest
+        run: |
+          # Create and push the manifest with both architectures
+          docker manifest create ${{ env.REGISTRY }}/${{ env.IMAGE }}:latest \
+            ${{ env.REGISTRY }}/${{ env.IMAGE }}:amd64-${{ github.sha }} \
+            ${{ env.REGISTRY }}/${{ env.IMAGE }}:arm64-${{ github.sha }}
+
+          docker manifest create ${{ env.REGISTRY }}/${{ env.IMAGE }}:${{ github.sha }} \
+            ${{ env.REGISTRY }}/${{ env.IMAGE }}:amd64-${{ github.sha }} \
+            ${{ env.REGISTRY }}/${{ env.IMAGE }}:arm64-${{ github.sha }}
+
+          # Push the manifests
+          docker manifest push ${{ env.REGISTRY }}/${{ env.IMAGE }}:latest
+          docker manifest push ${{ env.REGISTRY }}/${{ env.IMAGE }}:${{ github.sha }}