83 lines
1.8 KiB
Docker
83 lines
1.8 KiB
Docker
# 多阶段构建 Dockerfile
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# 阶段 1: 构建应用
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FROM golang:1.22-alpine AS builder
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# 安装构建依赖
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RUN apk add --no-cache git ca-certificates tzdata
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# 设置工作目录
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WORKDIR /app
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# 复制 go mod 文件
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COPY go.mod go.sum ./
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# 设置 Go 代理
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ENV GOPROXY=https://goproxy.cn,direct
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ENV CGO_ENABLED=0
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ENV GOOS=linux
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ENV GOARCH=amd64
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# 下载依赖
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RUN go mod download
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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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RUN go build -a -installsuffix cgo -ldflags="-w -s" -o main .
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# 阶段 2: 构建前端（如果有）
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# 如果有前端构建，取消下面的注释
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# FROM node:18-alpine AS frontend-builder
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# WORKDIR /app
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# COPY frontend/package*.json ./
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# RUN npm ci --only=production
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# COPY frontend/ .
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# RUN npm run build
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# 阶段 3: 运行时镜像
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FROM alpine:3.20 AS runtime
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# 安装运行时依赖
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RUN apk add --no-cache ca-certificates tzdata curl
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# 设置时区
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RUN cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime && \
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echo "Asia/Shanghai" > /etc/timezone && \
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apk del tzdata
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# 创建非 root 用户
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RUN addgroup -g 1000 appgroup && \
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adduser -u 1000 -G appgroup -s /bin/sh -D appuser
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# 创建必要的目录
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RUN mkdir -p /app/config /app/logs /app/uploads && \
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chown -R appuser:appgroup /app
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# 设置工作目录
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WORKDIR /app
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# 从构建阶段复制应用
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COPY --from=builder /app/main .
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COPY --chown=appuser:appgroup config.toml ./config/
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# 如果有前端构建，取消下面的注释
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# COPY --from=frontend-builder /app/dist ./dist
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# 创建空目录供应用使用
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RUN mkdir -p /app/logs /app/uploads && \
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chown -R appuser:appgroup /app
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# 切换到非 root 用户
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USER appuser
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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 curl -f http://localhost:8080/health || exit 1
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# 暴露端口
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EXPOSE 8080
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# 启动应用
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CMD ["./main", "serve"]
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