Docker series: 7. Remove Docker container and Images

This article will help you delete or remove the container as well as images from the docker list.

Remove docker container and images

1. Let's see first for the container, how it works

[root@machine1 myImage]# docker container ls
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
45fe220d4030 centos:latest “/bin/bash” 14 hours ago Up 14 hours myoscontainer

Remove container

[root@machine1 myImage]# docker container rm 45fe220d4030
Error response from daemon: You cannot remove a running container 45fe220d403029a7c7ba9baa810eea861b4b256bf50a584d45c6589dac7a2e0a. Stop the container before attempting removal or force remove

Beware: You need to stop container before removing it.

Stop the container. :)

[root@machine1 myImage]# docker container stop 45fe220d4030
45fe220d4030

List running container:

[root@machine1 myImage]# docker container ls
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES

List all the containers:

[root@machine1 myImage]# docker container ls -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
7f7d9ce61262 mycentosimage:pack1.0 “echo ‘This is Docke…” 3 minutes ago Exited (0) 3 minutes ago jovial_driscoll
45fe220d4030 centos:latest “/bin/bash” 14 hours ago Exited (137) 8 seconds ago myoscontainer

Remove docker container using container id.

[root@machine1 myImage]# docker container rm 45fe220d4030
45fe220d4030
[root@machine1 myImage]# docker container ls -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
7f7d9ce61262 mycentosimage:pack1.0 “echo ‘This is Docke…” 4 minutes ago Exited (0) 4 minutes ago jovial_driscoll

2. Let’s see first for the images, how it works

[root@machine1 myImage]# docker image rm eca72e1a5c53
Error response from daemon: conflict: unable to delete eca72e1a5c53 (must be forced) — image is being used by stopped container 7f7d9ce61262

Forcefully remove your docker image;

docker rmi -f <imageid>

[root@machine1 myImage]# docker rmi -f eca72e1a5c53
Untagged: mycentosimage:pack1.0
Deleted: sha256:eca72e1a5c5311d5cf7f83da5839e5235aa02e040d2940bb6df84f604670a7df
Deleted: sha256:1d5fb1159e18e69f6899294285575bd3f8cc4ec7e0568a73649451132bca2984
Deleted: sha256:9c6df2adc37d651878f690156393883391c03e7a3475c3027e882977c374660f

Verify:

[root@machine1 myImage]# docker image ls
REPOSITORY TAG IMAGE ID CREATED SIZE
jacksparrow007/hadooppresetup latest 2c3a110c721e 14 hours ago 658MB
ubuntu latest 4c108a37151f 4 weeks ago 64.2MB
centos centos7 9f38484d220f 4 months ago 202MB
centos latest 9f38484d220f 4 months ago 202MB
hello-world latest fce289e99eb9 6 months ago 1.84kB

Series next read;

https://medium.com/cloudscoop/cloudscoop-docker-create-a-shellinabox-container-b85380143ef5