Add Docker build multi-platform support

.github/workflows/docker-publish.yml

@@ -38,10 +38,9 @@ jobs:
           username: ${{ secrets.ALIYUN_USERNAME }}
           password: ${{ secrets.ALIYUN_PASSWORD }}
 
-      - name: Build and push
+      - name: Build and push multi-arch image
         run: |
-          docker build -t ${{env.REGISTRY}}/${{env.IMAGE_NAME}}:${{env.IMAGE_TAG}} .
-          docker push ${{env.REGISTRY}}/${{env.IMAGE_NAME}}:${{env.IMAGE_TAG}}
+          docker buildx build --platform linux/amd64,linux/arm64 -t ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.IMAGE_TAG }} --push .
 
       - name: Set up SSH key
         run: |

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.22.4-alpine3.20 AS builder
+FROM --platform=$BUILDPLATFORM golang:1.22.4-alpine3.20 AS builder
 
 WORKDIR /app
 COPY . .
@@ -6,7 +6,8 @@ COPY . .
 ENV GO111MODULE=on GOPROXY=https://goproxy.cn,direct
 RUN go mod download
 
-RUN CGO_ENABLED=0 go build -ldflags="-w -s" -o pcm-core-api
+# 使用 GOOS 和 GOARCH 环境变量来构建不同架构的二进制文件
+RUN CGO_ENABLED=0 GOOS=$TARGETOS GOARCH=$TARGETARCH go build -ldflags="-w -s" -o pcm-core-api
 
 
 FROM alpine:latest