Docker how to commit images with name on repository and tag

Question

I've made the images of Ubuntu 14:04, on my local laptop. Then I want to commit images,

I run this command to commit

 $ sudo Docker commit 2a1aef6a0547

However, there is no name on the repository and TAG

Like this, check images

 $ sudo docker images

The results

 REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
 <none>              <none>              87ab1f8aeb2f        12 minutes ago      5.34 GB
 ubuntu              14.04               e9ae3c220b23        2 weeks ago         187.9 MB

Name repository and tag is <none>

To be able to give a name, use syntax like??

Answer 1

Check the docker commit usage parameters:

Usage: docker commit [OPTIONS] CONTAINER [REPOSITORY[:TAG]]

In fact, the example presented there shows how to do this:

$ docker commit c3f279d17e0a  SvenDowideit/testimage:version3
f5283438590d

$ docker images    
REPOSITORY                        TAG                 ID                  CREATED             VIRTUAL SIZE
SvenDowideit/testimage            version3            f5283438590d 

Depending on what you are trying to do though - you may wish to start building images from a(n) (existing) Dockerfile instead.

Answer 2

Running this syntax

$ sudo docker tag 87ab1f8aeb2f name_your_images:latest

Example

$ sudo docker tag 87ab1f8aeb2f ubuntu_test:14.04