Docker : Add Container images2021/08/30

	Add Container images you created.
[1]	For exmaple, 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
debian       latest    fe3c5de03486   12 days ago   124MB

# start a Container and install nginx

root@dlp:~#

docker run debian /bin/bash -c "apt-get update; apt-get -y install nginx"

root@dlp:~#

docker ps -a | head -2

CONTAINER ID   IMAGE     COMMAND                  CREATED          STATUS                       PORTS     NAMES
f6fddf4b540e   debian    "/bin/bash -c 'apt-g…"   26 seconds ago   Exited (0) 8 seconds ago               nifty_bhabha

# add the image

root@dlp:~#

docker commit f6fddf4b540e srv.world/debian-nginx

sha256:e07733601f3035553aaa4125b8ab8262f7f9b7360908ca6b0e5ec3ce36284154

root@dlp:~#

docker images

REPOSITORY               TAG       IMAGE ID       CREATED         SIZE
srv.world/debian-nginx   latest    e07733601f30   6 seconds ago   210MB
debian                   latest    fe3c5de03486   12 days ago     124MB

# generate a container from the new image and execute [which] to make sure nginx exists

root@dlp:~#

docker run srv.world/debian-nginx /usr/bin/which nginx

/usr/sbin/nginx

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