docker - 何时将 `--attach` 与 `docker container run` 一起使用？

Question

我找到了 that ——

By default, when no option is provided to the docker run command, the root process is started in the foreground. This means that the standard input, output, and error from the root process are attached to the terminal session.

那么， $ docker container run -ait ubuntu 和有什么区别？ & $ docker container run -it ubuntu ?

何时使用 --attach与 docker container run ?

Answer 1

If you do not specify -a then Docker will attach to both stdout and stderr when running in foreground mode.您可以使用 --attach附加到特定流的选项。

-a=[]           : Attach to `STDIN`, `STDOUT` and/or `STDERR`

docker run -a stdin -a stdout -i -t ubuntu /bin/bash