Docker容器进入的方式

1.使用docker exec进入Docker容器

docker在1.3.X版本之后还提供了一个新的命令exec用于进入容器，这种方式相对更简单一些，下面我们来看一下该命令的使用：

sudo docker exec --help

[root@localhost toor]# sudo docker exec --help

Usage: docker exec [OPTIONS] CONTAINER COMMAND [ARG...]

Run a command in a running container

Options:
  -d, --detach               Detached mode: run command in the background
      --detach-keys string   Override the key sequence for detaching a
                             container
  -e, --env list             Set environment variables
  -i, --interactive          Keep STDIN open even if not attached
      --privileged           Give extended privileges to the command
  -t, --tty                  Allocate a pseudo-TTY
  -u, --user string          Username or UID (format:
                             <name|uid>[:<group|gid>])
  -w, --workdir string       Working directory inside the container
[root@localhost toor]#

[root@localhost toor]# docker exec -it a46fa8852e07 /bin/bash
root@a46fa8852e07:/# exit
exit
[root@localhost toor]#

参考：

https://www.cnblogs.com/xhyan/p/6593075.html