Edit, remove, update files in Docker image

One option using dockerfile.

Another option, to create a container and commit that to the image.

docker run -it --name="centos_test" centos:latest /bin/bash

Now, update the files or any changes.

After that, commit the container

docker commit -m="This a test image" centos_test new_centos_image

Here,
-m=”This a test image” : is a Commit message.
centos_test : Name of the container from which you are creating the image.
new_centos_image: Name of the new image created.


Now, push the image using link



To delete images.



For images:
docker images | grep "pattern" | awk '{print $3}' | xargs docker rmi


and alternatively, I found this one to work better (as multiple tags can link to a same image):
docker images | grep "pattern" | awk '{print $1":"$2}' | xargs docker rmi

Reference:
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