Docker: How to extract the Docker image into local system

Question

I want to extract the Docker image (from Ubuntu server) into my local system (Linux machine).

I run the following command

docker exec -it containername_         


        

Answer 1

You can use docker's export tool for this. docker export will output the contents of a container into a .tar file;

$ docker export container_name > output.tar

See the docker docs for more information: https://docs.docker.com/engine/reference/commandline/export/