The image exits by itself after docker run it. How to prevent it from exiting?

Question

As the title says,

sudo docker run -it resin/rpi-raspbian /bin/bash

Theoretically speaking, bash has not been closed and should be usable, but why, check after each run

sudo docker ps 

There are no running images.
pass

sudo docker run -it resin/rpi-raspbian /bin/echo "hello world"

//或者

sudo docker ps -a

It can be verified that docker has been executed and then exited. Adding the -it command should enter the bash of the image and then interact, but it does not. How to deal with this situation...

Docker version 1.12.6, build 78d1802

Answer 1

Your question 1

1. Docker run -it Please do not use CTRL+C退出
2.使用CTRL+P+Q to exit the internal session of the current container, it will run in the background.

If your problem is not solved, please try to check the log information

$docker logs ${container_id}

Your next question

Docker will default the internal pid of the container to 1 as the identifier. If 1 dies, the container will die. After echo "hello", the pid will die, and then the natural container will die.

Documentation

In the official documentation, the use of run -it in the docker cli introduction is as follows
Docs

Answer 2

Because you didn’t add the -d parameter