如何进入已经使用新 TTY 运行的 Docker 容器 [英] How to enter in a Docker container already running with a new TTY

问题描述

我有一个在前台运行 Apache 服务的容器.我希望能够从另一个 shell 访问容器，以便在它内部探查"并检查文件.目前，如果我附加到容器，我只能查看 Apache 守护程序并且无法运行任何命令.

I have a container that is running the Apache service in the foreground. I would like to be able to access the container from another shell in order to "poke around" inside it and examine the files. At the moment, if I attach to the container, I am left looking at the Apache daemon and cannot run any commands.

是否可以将另一个 tty 附加到正在运行的容器?也许，我可以利用 Docker 实际上只是围绕 LXC 容器这一事实?我已经尝试过 sudo lxc-console -n [container-id] -t [1-4] 但似乎只有一个 tty 可用，并且是运行 apache 守护进程的那个.也许有一种方法可以在构建过程中启用多个 lxc 控制台?

Is it possible to attach another tty to a running container? Possibly, I can take advantage of the fact that Docker is actually just wrapping around LXC containers? I have tried sudo lxc-console -n [container-id] -t [1-4] but it appears that only one tty is made available and that is the one running the apache daemon. Perhaps there is a way to enable multiple lxc consoles during the build?

如果可能，我宁愿不使用 openssh 服务配置和构建容器.

I would rather not configure and build the container with an openssh service if possible.

推荐答案

在 docker 1.3 中，有一个新命令 docker exec.这允许您进入正在运行的容器:

With docker 1.3, there is a new command docker exec. This allows you to enter a running container:

docker exec -it [container-id] bash

注意:这假设 bash 已安装在您的容器上.您可以运行 sh 或容器上安装的任何交互式 shell.

Note: this assumes bash is installed on your container. You may run sh or whatever interactive shell is installed on the container.

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