Alpine简称高山的 是一款非常适合做k8s基础镜像的linux
- 小巧：基于Musl libc和busybox，和busybox一样小巧，最小的Docker镜像只有5MB；
- 安全：面向安全的轻量发行版；
- 简单：提供APK包管理工具，软件的搜索、安装、删除、升级都非常方便。
- 适合容器使用：由于小巧、功能完备，非常适合作为容器的基础镜像。
# nodejs环境，
FROM alpine+glibc环境
WORKDIR /app
RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories &&\
apk --no-cache add ca-certificates wget &&\
wget -q -O /etc/apk/keys/sgerrand.rsa.pub http://alpine-pkgs.sgerrand.com/sgerrand.rsa.pub &&\
wget http://github.com/sgerrand/alpine-pkg-glibc/releases/download/2.28-r0/glibc-2.28-r0.apk &&\
apk add --no-cache npm &&\
apk add --no-cache nodejs &&\
apk add --no-cache glibc-2.28-r0.apk &&\
apk add --no-cache curl &&\
rm -rf * &&\
apk add --no-cache -U tzdata && \
cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime构建推送至镜像仓库
docker build . -t registry.cn-shanghai.aliyuncs.com/******/cake:alpine-glibc-nodejs2024更新
FROM alpine:latest AS builder
WORKDIR /app
RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories &&\
apk --no-cache add ca-certificates wget &&\
wget http://github.com/sgerrand/alpine-pkg-glibc/releases/download/2.35-r1/glibc-2.35-r1.apk
FROM alpine:latest
WORKDIR /app
COPY --from=builder /app/glibc-2.35-r1.apk .
RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories &&\
wget -q -O /etc/apk/keys/sgerrand.rsa.pub http://alpine-pkgs.sgerrand.com/sgerrand.rsa.pub &&\
apk add --no-cache glibc-2.35-r1.apk &&\
rm -rf * &&\
apk add --no-cache -U tzdata && \
# 修改时区
cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
# 设置环境变量，确保应用使用 glibc
ENV LD_LIBRARY_PATH /usr/glibc-compat/lib
# 构建docker build ./ -t alpine-glibc-shanghai:v1.0测试
root@nvm-jscs02-sys-devops-03:/fei# docker run -it alpine-glibc-shanghai:v1.0 /bin/sh
/app # cat /etc/alpine-release
3.20.3
/app # env
HOSTNAME=9cc999ef3a61
LD_LIBRARY_PATH=/usr/glibc-compat/lib
SHLVL=1
HOME=/root
TERM=xterm
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
PWD=/app接下去就可以用这个镜像作为golang程序的基础镜像了
例如：一个kratos程序容器化
root@nvm-jscs02-sys-devops-03:~/ares-build# tree
.
├── api
│ └── interface
│ └── v1
│ ├── sync.bm.go
│ ├── sync.pb.go
│ ├── sync.proto
│ └── sync.swagger.json
├── app
│ └── interface
│ └── v1
│ ├── cmd
│ │ ├── main.go
│ │ ├── wire_gen.go
│ │ └── wire.go
│ ├── configs
│ │ ├── 忽略
│ └── internal
│ ├── biz
│ │ ├── 忽略
│ ├── data
│ │ ├── 忽略
│ ├── server
│ │ ├── grpc.go
│ │ └── http.go
│ └── service
│ ├── 忽略
├── cloudrepo
...
├── dockerfile
├── go.mod
├── go.sum
└── utils
...#dockerfile内容，多阶段构建
FROM golang:1.22 AS builder
WORKDIR /app
COPY . ./
RUN go env -w GOPROXY=https://mirrors.aliyun.com/goproxy/,direct
RUN go mod tidy
RUN go mod download
WORKDIR /app/app/interface/v1/cmd
RUN CGO_ENABLED=0 GOOS=linux go build -o ares .
# 这里用到了上一步构建的带glibc的alpine基础镜像
FROM alpine-glibc-shanghai:v1.0
WORKDIR /app
COPY --from=builder /app/app/interface/v1/cmd/ares .
RUN chmod +x ares
RUN mkdir configs
COPY --from=builder /app/app/interface/v1/configs/application.toml ./configs
EXPOSE 8001
CMD ["./ares"]
