How to remove a Docker Container on CentOS

My current understanding is that in order to change a running parameter of a Docker Container, the existing instance must be removed and a new one started. Here is how to do that.

First stop your container

https://www.google.com/search?q=docker+stop+container

https://docs.docker.com/engine/reference/commandline/stop/

Get your container ID using docker ps first and make sure its gone after stop completes

[root@homeserver hassconfig]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
6a6554465733 homeassistant/home-assistant "python -m homeassis…" 18 minutes ago Up 18 minutes home-assistant
ada565dd0a56 plexinc/pms-docker "/init" 7 weeks ago Up 2 weeks (healthy) 0.0.0.0:3005->3005/tcp, 0.0.0.0:8324->8324/tcp, 0.0.0.0:1900->1900/udp, 0.0.0.0:32410->32410/udp, 0.0.0.0:32400->32400/tcp, 0.0.0.0:32412-32414->32412-32414/udp, 0.0.0.0:32469->32469/tcp plex
[root@homeserver hassconfig]# docker stop 6a6554465733
6a6554465733
[root@homeserver hassconfig]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
ada565dd0a56 plexinc/pms-docker "/init" 7 weeks ago Up 2 weeks (healthy) 0.0.0.0:3005->3005/tcp, 0.0.0.0:8324->8324/tcp, 0.0.0.0:1900->1900/udp, 0.0.0.0:32410->32410/udp, 0.0.0.0:32400->32400/tcp, 0.0.0.0:32412-32414->32412-32414/udp, 0.0.0.0:32469->32469/tcp plex

Now my container is stopped i can remove it.

https://www.google.com/search?q=docker+remove

Gives me

https://zaiste.net/removing_docker_containers/

Thanks Zaiste!

I can verify the Container ID using ps

docker ps -aq -f status=exited

and then go ahead and remove it, verifying it has truly gone

[root@homeserver hassconfig]# docker ps -aq -f status=exited
6a6554465733
[root@homeserver hassconfig]# docker rm 6a6554465733
6a6554465733
[root@homeserver hassconfig]# docker ps -aq -f status=exited

(The last command above returns nothing as there are no longer any containers in a stopped state).

Easy when you know how 🙂