Multi-platform docker build without qemu

see also
https://www.docker.com/blog/faster-multi-platform-builds-dockerfile-cross-compilation-guide/

.github/workflows/push.yml

@@ -11,14 +11,14 @@ jobs:
       - uses: actions/checkout@v2.4.0
 
       - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v2.4.1
+        uses: actions/setup-node@v3
         with:
           node-version: ${{ matrix.node-version }}
 
       - name: Get yarn cache directory path
         id: yarn-cache-dir-path
         run: echo "::set-output name=dir::$(yarn cache dir)"
-      - uses: actions/cache@v2.1.6
+      - uses: actions/cache@v2.1.7
         id: yarn-cache # use this to check for `cache-hit` (`steps.yarn-cache.outputs.cache-hit != 'true'`)
         with:
           path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
@@ -86,12 +86,12 @@ jobs:
   docker:
     needs: install
     runs-on: ubuntu-20.04
-    if: github.event_name == 'push' && (startsWith(github.event.ref, 'refs/tags/') || startsWith(github.event.ref, 'refs/heads/v0.') || github.event.ref == 'refs/heads/master')
+    if: github.event_name == 'push' && (startsWith(github.event.ref, 'refs/tags/') || startsWith(github.event.ref, 'refs/heads/v0.') || github.event.ref == 'refs/heads/master' || github.event.ref == 'refs/heads/test')
     steps:
       - uses: actions/checkout@v2.4.0
 
       - name: Cache Docker layers
-        uses: actions/cache@v2
+        uses: actions/cache@v2.1.7
         with:
           path: /tmp/.buildx-cache
           key: ${{ runner.os }}-buildx-${{ github.sha }}
@@ -100,12 +100,12 @@ jobs:
 
       - name: Docker meta
         id: docker_meta
-        uses: docker/metadata-action@v3.6.0
+        uses: docker/metadata-action@v3.6.2
         with:
           images: haishanh/yacd
 
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v1.2.0
+      # - name: Set up QEMU
+      #   uses: docker/setup-qemu-action@v1.2.0
 
       - name: Set up Docker Buildx
         id: buildx
@@ -134,8 +134,8 @@ jobs:
           push: true
           tags: ${{ steps.docker_meta.outputs.tags }}
           labels: ${{ steps.docker_meta.outputs.labels }}
-          cache-from: type=local,src=/tmp/.buildx-cache
-          cache-to: type=local,dest=/tmp/.buildx-cache
+          cache-from: type=gha
+          cache-to: type=gha
 
       - name: Image digest
         run: echo ${{ steps.docker_build.outputs.digest }}

Dockerfile

@@ -1,4 +1,4 @@
-FROM node:alpine AS builder
+FROM --platform=$BUILDPLATFORM node:alpine AS builder
 WORKDIR /app
 COPY . .
 # Using yarn to install dependencies in CI will cause network timeout
@@ -9,7 +9,7 @@ RUN yarn config set network-timeout 300000 \
   # remove source maps - people like small image
   && rm public/*.map || true
 
-FROM nginx:alpine
+FROM --platform=$TARGETPLATFORM nginx:alpine
 RUN rm -rf /usr/share/nginx/html/*
 COPY --from=builder /app/public /usr/share/nginx/html
 ENV YACD_DEFAULT_BACKEND "http://127.0.0.1:9090"