# ================================ # 阶段 1: 构建阶段 # ================================ FROM golang:1.25.6-alpine AS builder # 设置工作目录 WORKDIR /build # 安装必要的构建工具 RUN apk add --no-cache git ca-certificates tzdata # 复制 go.mod 和 go.sum(利用 Docker 缓存) COPY go.mod go.sum ./ # 使用国内 Go 代理加速依赖下载 ENV GOPROXY=https://goproxy.cn,direct RUN go mod download # 复制源代码 COPY . . # 编译 API 服务(静态链接) RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build \ -ldflags="-w -s" \ -o /build/api \ ./cmd/api # 下载 golang-migrate 工具 RUN go install -tags 'postgres' github.com/golang-migrate/migrate/v4/cmd/migrate@latest # ================================ # 阶段 2: 运行阶段 # ================================ FROM alpine:latest # 安装运行时依赖 RUN apk add --no-cache ca-certificates tzdata bash curl # 设置时区 ENV TZ=Asia/Shanghai # 创建非 root 用户 RUN addgroup -g 1000 appuser && \ adduser -D -u 1000 -G appuser appuser # 设置工作目录 WORKDIR /app # 从构建阶段复制二进制文件 COPY --from=builder /build/api /app/api COPY --from=builder /go/bin/migrate /usr/local/bin/migrate # 复制配置文件和迁移文件 COPY configs /app/configs COPY migrations /app/migrations # 复制启动脚本 COPY docker/entrypoint-api.sh /app/entrypoint.sh RUN chmod +x /app/entrypoint.sh # 切换到非 root 用户 USER appuser # 暴露端口 EXPOSE 8088 # 健康检查 HEALTHCHECK --interval=30s --timeout=3s --start-period=10s --retries=3 \ CMD curl -f http://localhost:8088/health || exit 1 # 启动命令 ENTRYPOINT ["/app/entrypoint.sh"]