How to see the dead process of docker in linux

In the process of using docker, you may encounter problems such as abnormal exit or death of the container process. So how to check and deal with these problems? This article will introduce how to view and deal with the dead process of docker in Linux system.

1. Check the docker running status

In the Linux system, use the commandsystemctl status dockerto check whether the docker service is running normally. If the service status isactive (running), it means that docker has started normally. Otherwise, you need to use the commandsystemctl start dockerto start the docker service.

2. View the container running docker

Use the commanddocker psto view the information of the currently running docker container, including container ID, name, image, Status etc. If you want to view all container information, you can use the commanddocker ps -a.

3. View the container log

When the container exits abnormally or dies, you can learn about the specific problem by viewing the container log. Use the commanddocker logs [container-name]to view the log information of the specified container. If you want to view real-time container logs, you can use the commanddocker logs -f [container-name].

4. View the docker process

In the Linux system, use thepscommand to view the processes running in the system. If you want to view the docker process, you can use the commandps aux | grep docker. This command will list all related docker processes and corresponding parameters.

5. View the detailed information of the docker container

If you want to view the detailed information of the container, including container ID, name, status and other information, you can use the commanddocker inspect [container-name]. This command outputs information in JSON format, which can be used to analyze and handle container failures.

6. Terminate the docker container process

If the docker container process cannot be terminated normally, you can use the commanddocker kill [container-name]to forcefully terminate the container process. This command will send the SIGKILL signal to the container process, which can terminate the container process even if it does not respond.

7. Delete docker container

If a container process cannot exit or terminate normally, you can use the commanddocker rm -f [container-name]Forcefully delete stopped containers. This command will first force stop the container and then delete it. Note that this operation will cause the loss of all container data, so please use it with caution.

Summary:

This article introduces how to view and deal with the dead process problem of docker in the Linux system, including viewing the docker running status, running containers, container logs, docker processes, and container details , terminate the docker container process and delete the docker container. Using these commands can help us quickly locate and solve docker process failures and improve system reliability and stability.

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