Docker : Add Container images2025/08/08

	Add Container images you created.
[1]	For example, update official image with installing Nginx and add it as a new image for container. The container is generated every time for executing docker run command, so add the latest executed container like follows.

# show images

[root@dlp ~]#

docker images

REPOSITORY              TAG        IMAGE ID       CREATED       SIZE
quay.io/centos/centos   stream10   02ae49ff109e   7 weeks ago   306MB

# start a Container and install nginx

[root@dlp ~]#

docker run quay.io/centos/centos:stream10 /bin/bash -c "dnf -y install nginx"

[root@dlp ~]#

docker ps -a | head -2

CONTAINER ID   IMAGE                            COMMAND                  CREATED          STATUS                      PORTS     NAMES
02a2e6c27ce5   quay.io/centos/centos:stream10   "/bin/bash -c 'dnf -..."   20 seconds ago   Exited (0) 12 seconds ago             hungry_napier

# add the image

[root@dlp ~]#

docker commit 02a2e6c27ce5 srv.world/centos-nginx

sha256:b587aa926cbff4940a8d51999a9b21826cb86675cf419f79f3097af9d2c613b1

[root@dlp ~]#

docker images

REPOSITORY               TAG        IMAGE ID       CREATED          SIZE
srv.world/centos-nginx   latest     b587aa926cbf   13 seconds ago   345MB
quay.io/centos/centos    stream10   02ae49ff109e   7 weeks ago      306MB

# generate a container from the new image and make sure nginx exists

[root@dlp ~]#

docker run srv.world/centos-nginx nginx -v

nginx version: nginx/1.26.3

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