Run docker commands, like docker pull with dokku. Usually you run dokku commands through sshcommands with only capable of run dokku commands, with this you can run somethings like pull.
Imagine this, you use docker images for build and deploy, you just have all running with from-image but you need to update to a new image, but you only have dokku commands for deployment. With this, you can make dokku pull a newer image from a docker registry so after that you may run dokku ps:rebuild
sudo dokku plugin:install https://github.com/grizmio/dokku-docker-helper.git
docker:pull <image> Image to pull
dokku docker:pull <image>
This command just runs docker commands