Why do you keep running docker containers?
This article shows you how to run the docker container all the time, the content is concise and easy to understand, it will definitely brighten your eyes. I hope you can get something through the detailed introduction of this article.
Phenomenon
Start the docker container
Docker run-name [CONTAINER_NAME] [CONTAINER_ID]
View container running status
Docker ps-a
Found that the mydocker container that has just been started has exited
Reason
It is important to note that when the Docker container runs in the background, there must be a foreground process.
If the commands run by the container are not those that have been suspended (such as running top,tail), they will exit automatically.
The main thread of the docker container (the command executed by CMD in dockfile) ends and the container exits
Solution method
You can use interactive startup
Docker run-I [CONTAINER_NAME or CONTAINER_ID]
The above is not very friendly, it is recommended to use background mode and tty option
Docker run-dit [CONTAINER_NAME or CONTAINER_ID]
View container status
Docker ps-a
Docker calls up the backend container
Docker attach [CONTAINER_NAME or CONTAINER_ID]
TIPs: when exiting, use [ctrl + D], which ends the current thread of docker and the container. You can use [ctrl + P] [ctrl + Q] to exit without terminating the container.
The following command will execute the specified command in the specified container. The container will not be terminated after [ctrl+D] exits.
Docker exec-it [CONTAINER_NAME or CONTAINER_ID] / bin/bash this is how to run the docker container all the time. Have you learned any knowledge or skills? If you want to learn more skills or enrich your knowledge reserve, you are welcome to follow the industry information channel.
