Docker 的 container 中可以再安装 Docker 运行吗

Question

由于构建时使用多个docker image作为辅助，所以想到了在container中运行多个container帮助构建，完成后删除，保证构建的镜像大小。
但是在container中使用docker经常失败，不知道是不是实现上就不允许？

Answer 1

Clear answer: No, no way, impossible!

If you understand the basic principles of docker implementation, you will not ask this question; it is recommended to learn about the Linux kernel, such as namespace and cgroup.

Answer 2

If you want to use multiple docker images, why do they have to be in one container? Used docker, but anti-docker thinking.

Answer 3

I just saw an article about how to create a small-capacity image in this way

/a/1190000000628247?name=docker&description=&isPrivate=1

Answer 4

docker-in-docker
This should be what you want, but it is recommended to read its documentation carefully before using it

https://github.com/jpetazzo/dind

Answer 5

Of course it is possible, but not in all situations. You need to configure permissions and other aspects

Answer 6

Yes, Eclipse che seems to be like this.