The administrator is responsible for managing user accounts. This includes the ability to create and delete accounts, and to grant the administrator role to other accounts.
You can manage users using the command line utility. Please see the command line tools documentation for installation instructions.
Example command to list active users:
$ drone user ls
Example command to add a user to the system:
$ drone user add octocat
Example command to remove a user from the system:
$ drone user rm octocat
Example command to grant the administrator role to a user:
$ drone user update octocat --admin