docker基础镜像怎么选？
妙音
posted @ 2018年6月03日 10:40
in docker
, 2925 阅读
先看看基础镜像的dockerfile，它们是怎么创建出来的。
- scratch
空镜像
- alpine
FROM scratch ADD rootfs.tar.xz / CMD ["/bin/sh"]
- debian
FROM scratch ADD rootfs.tar.xz / CMD ["bash"]
- centos/fedora/ubuntu
FROM scratch
ADD centos-7.4.1708-docker.tar.xz /
LABEL name="CentOS Base Image" \
vendor="CentOS" \
license="GPLv2" \
build-date="20170911"
CMD ["/bin/bash"]
- 建议
docker是容器不同于虚拟机，运行之后只有应用程序在里面运行，基础镜像只是为应用程序提供依赖包。应用程序是主，基础镜像是次。
如果没有必要，选择最小的依赖环境alpine，然后在这个基础上制作自己的镜像。
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