72 lines
1.6 KiB
Docker
72 lines
1.6 KiB
Docker
# 多阶段构建 - 后端 Dockerfile
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# 阶段 1: 构建阶段
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FROM golang:1.24-alpine AS builder
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# 设置工作目录
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WORKDIR /app
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# 配置 Alpine 国内镜像源
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RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories
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# 安装必要的构建工具
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RUN apk add --no-cache git
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# 配置 Go 国内代理
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ENV GOPROXY=https://goproxy.cn,direct
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# 复制 go mod 文件
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COPY go.mod go.sum ./
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# 下载依赖并更新 go.sum
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RUN go mod download && go mod tidy
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# 复制源代码
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COPY . .
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# 构建应用
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# CGO_ENABLED=0 创建静态链接的二进制文件
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# -ldflags="-w -s" 减小二进制文件大小
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RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build \
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-ldflags="-w -s" \
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-o server \
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./cmd/server/main.go
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# 阶段 2: 运行阶段
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FROM alpine:latest
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# 配置 Alpine 国内镜像源
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RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories
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# 安装必要的运行时依赖
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RUN apk --no-cache add ca-certificates tzdata
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# 设置时区为上海
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ENV TZ=Asia/Shanghai
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# 创建非 root 用户
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RUN addgroup -g 1000 appuser && \
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adduser -D -u 1000 -G appuser appuser
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# 设置工作目录
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WORKDIR /app
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# 从构建阶段复制二进制文件
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COPY --from=builder /app/server .
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# 创建数据目录
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RUN mkdir -p /app/data && \
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chown -R appuser:appuser /app
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# 切换到非 root 用户
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USER appuser
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# 暴露端口
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EXPOSE 2612
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# 健康检查
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HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
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CMD wget --no-verbose --tries=1 --spider http://localhost:2612/health || exit 1
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# 启动应用
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CMD ["./server"]
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