Golang_demo/Dockerfile

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2025-06-25 13:26:35 +08:00
# 构建阶段
FROM golang:1.21-alpine AS builder
# 设置工作目录
WORKDIR /app
# 安装依赖
RUN apk add --no-cache git ca-certificates tzdata
# 复制go mod文件
COPY go.mod go.sum ./
# 下载依赖
RUN go mod download
# 复制源代码
COPY . .
# 设置构建参数
ARG BUILD_TIME
ARG GIT_COMMIT
# 构建应用
RUN CGO_ENABLED=0 GOOS=linux go build \
-ldflags="-w -s -X main.buildTime=${BUILD_TIME} -X main.gitCommit=${GIT_COMMIT}" \
-o main .
# 运行阶段
FROM alpine:latest
# 安装ca证书
RUN apk --no-cache add ca-certificates tzdata
WORKDIR /root/
# 从builder阶段复制二进制文件
COPY --from=builder /app/main .
# 复制配置文件(可选)
COPY --from=builder /app/.env .
# 创建非root用户
RUN adduser -D -s /bin/sh appuser
USER appuser
# 暴露端口
EXPOSE 8080
# 健康检查
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
CMD wget --no-verbose --tries=1 --spider http://localhost:8080/health || exit 1
# 运行应用
CMD ["./main"]