chore: use self-hosted runner for arm64

.github/workflows/docker-builder.yml

@@ -3,45 +3,104 @@ name: build avatar-bot-builder
 on:
   workflow_dispatch:
 
+env:
+  PACKAGE_NAME: avatar-bot-builder
+  REGISTRY_IMAGE: ghcr.io/nanpuyue/avatar-bot-builder
+
 jobs:
-  push_to_registries:
-    name: build the avatar-bot-builder docker image
-    runs-on: ubuntu-latest
+  build:
+    name: build for ${{ matrix.platform }} on ${{ matrix.label }}
+    runs-on: ${{ matrix.label }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - platform: linux/amd64
+            label: ubuntu-latest
+          - platform: linux/arm64
+            label: self-hosted
     permissions:
       packages: write
       contents: read
     steps:
       - name: Check out the repo
         uses: actions/checkout@v4
-
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
-
       - name: Set up Docker Buildx
         id: buildx
         uses: docker/setup-buildx-action@v3
-
       - name: Log in to the Container registry
         uses: docker/login-action@v3
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Extract metadata (tags, labels) for Docker
+      - name: Extract Docker metadata
         id: meta
         uses: docker/metadata-action@v5
         with:
-          flavor: |
-            latest=true
-          images: |
-            ghcr.io/${{ github.repository }}-builder
-
+          tags: |
+            type=raw,value={{date 'YYYYMMDD'}}
+          images: ${{ env.REGISTRY_IMAGE }}
       - name: Build and push Docker images
+        id: build
         uses: docker/build-push-action@v5
         with:
           context: builder
           push: true
-          platforms: linux/amd64, linux/arm64
+          platforms: ${{ matrix.platform }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
+      - name: Export digest
+        run: |
+          mkdir -p ./digests
+          digest="${{ steps.build.outputs.digest }}"
+          touch "./digests/${digest#sha256:}"          
+      - name: Upload digest
+        uses: actions/upload-artifact@v3
+        with:
+          name: digests
+          path: ./digests/*
+          if-no-files-found: error
+          retention-days: 1
+
+  merge:
+    name: merge multi-platform images
+    runs-on: ubuntu-latest
+    permissions:
+      packages: write
+      contents: read
+    needs:
+      - build
+    steps:
+      - name: Download digests
+        uses: actions/download-artifact@v3
+        with:
+          name: digests
+          path: ./digests
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Extract Docker metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          flavor: |
+            latest=true
+          tags: |
+            type=raw,value={{date 'YYYYMMDD'}}
+          images: ${{ env.REGISTRY_IMAGE }}
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Create manifest list and push
+        working-directory: ./digests
+        run: |
+          docker buildx imagetools create $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON")\
+            $(printf '${{ env.REGISTRY_IMAGE }}@sha256:%s ' *)
+      - name: Inspect image
+        run: |
+          docker buildx imagetools inspect ${{ env.REGISTRY_IMAGE }}:${{ steps.meta.outputs.version }}