Adding a nonroot user to administer Docker

For ease of use, we can allow a nonroot user to administer Docker by adding it to a Docker group. This is not required when using Docker on Mac or Windows.

Getting ready

To prepare to add a nonroot user to administer Docker, go through the following steps:

1. Create the Docker group, if it is not there already:

    $ sudo groupadd docker

2. Create the user to whom you want to give permissions to administer Docker:

    $ sudo useradd dockertest

How to do it...

Run the following command to add the newly created user to administer Docker:

    $ sudo usermod -aG docker dockertest

How it works...

The preceding command will add a user to the Docker group. The added user will thus be able to perform all Docker operations.