39/100 Create a Docker Image From Container

One of the Nautilus developer was working to test new changes on a container. He wants to keep a backup of his changes to the container. A new request has been raised for the DevOps team to create a new image from this container. Below are more details about it:

a. Create an image news:nautilus on Application Server 1 from a container ubuntu_latest that is running on same server.

ssh tony@stapp01

# Checking to see which docker images exist
[tony@stapp01 ~]$ docker images
REPOSITORY   TAG       IMAGE ID       CREATED      SIZE
ubuntu       latest    ce8f79aecc43   4 days ago   78.1MB

# Checking to see what docker containers are running
[tony@stapp01 ~]$ docker ps
CONTAINER ID   IMAGE     COMMAND       CREATED         STATUS         PORTS     NAMES
f9b3bd7f78e0   ubuntu    "/bin/bash"   3 minutes ago   Up 3 minutes             ubuntu_latest

# Create the image
[tony@stapp01 ~]$ docker commit ubuntu_latest news:nautilus
sha256:e9db9d0fe5f3230ae2b58748cf35ee4e6c14491ded2f57014eb5284df2698d32

# Confirm the new image 
[tony@stapp01 ~]$ docker images
REPOSITORY   TAG        IMAGE ID       CREATED          SIZE
news         nautilus   e9db9d0fe5f3   34 seconds ago   133MB
ubuntu       latest     ce8f79aecc43   4 days ago       78.1MB