feat: enhance staging build workflow with multi-architecture support and improved caching

.github/workflows/staging-build.yml

@@ -12,8 +12,20 @@ env:
   VITE_SITE_URL: https://next.coolify.io/docs/
 
 jobs:
-  build:
-    runs-on: [self-hosted, arm64]
+  build-push:
+    strategy:
+      matrix:
+        include:
+          - arch: amd64
+            platform: linux/amd64
+            runner: ubuntu-24.04
+          - arch: aarch64
+            platform: linux/arm64
+            runner: ubuntu-24.04-arm
+    runs-on: ${{ matrix.runner }}
+    permissions:
+      contents: read
+      packages: write
     steps:
       - uses: actions/checkout@v4
         with:
@@ -21,22 +33,6 @@ jobs:
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
-        with:
-          version: latest
-          buildkitd-flags: --debug
-
-      - uses: actions/cache@v4
-        with:
-          path: |
-            ~/.bun/install/cache
-            ~/.cache/bun
-            node_modules
-            docs/.vitepress/.cache
-            docs/.vitepress/cache
-            docs/.vitepress/dist
-          key: ${{ runner.os }}-bun-${{ hashFiles('**/bun.lockb', '**/package.json') }}
-          restore-keys: |
-            ${{ runner.os }}-bun-
 
       - name: Login to ${{ env.GITHUB_REGISTRY }}
         uses: docker/login-action@v3
@@ -45,12 +41,12 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Build and Push Image
+      - name: Build and Push Image (${{ matrix.arch }})
         uses: docker/build-push-action@v6
         with:
           context: .
           file: Dockerfile
-          platforms: linux/arm64
+          platforms: ${{ matrix.platform }}
           build-args: |
             VITE_ANALYTICS_DOMAIN=${{ env.VITE_ANALYTICS_DOMAIN }}
             VITE_SITE_URL=${{ env.VITE_SITE_URL }}
@@ -58,10 +54,35 @@ jobs:
             VITE_KORREKTLY_BASE_URL=${{ secrets.VITE_KORREKTLY_BASE_URL }}
             VITE_KORREKTLY_DATASET_ID=${{ secrets.VITE_KORREKTLY_DATASET_ID }}
           push: true
-          cache-from: type=gha,scope=${{ github.workflow }}
-          cache-to: type=gha,mode=max,scope=${{ github.workflow }}
           tags: |
-            ${{ env.GITHUB_REGISTRY }}/${{ env.IMAGE_NAME }}:next
+            ${{ env.GITHUB_REGISTRY }}/${{ env.IMAGE_NAME }}:next-${{ matrix.arch }}
+          cache-from: type=gha,scope=build-${{ matrix.arch }}
+          cache-to: type=gha,mode=max,scope=build-${{ matrix.arch }}
+
+  merge-manifest:
+    runs-on: ubuntu-24.04
+    needs: build-push
+    permissions:
+      contents: read
+      packages: write
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: docker/setup-buildx-action@v3
+
+      - name: Login to ${{ env.GITHUB_REGISTRY }}
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.GITHUB_REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Create & publish manifest on ${{ env.GITHUB_REGISTRY }}
+        run: |
+          docker buildx imagetools create \
+          ${{ env.GITHUB_REGISTRY }}/${{ env.IMAGE_NAME }}:next-amd64 \
+          ${{ env.GITHUB_REGISTRY }}/${{ env.IMAGE_NAME }}:next-aarch64 \
+          --tag ${{ env.GITHUB_REGISTRY }}/${{ env.IMAGE_NAME }}:next
 
       - name: Deploy to Coolify
         run: |