# Pastebin 0M3l0L8Y
usage: openstack role add [-h] [--domain <domain> | --project <project>]
                          [--user <user> | --group <group>]
                          [--group-domain <group-domain>]
                          [--project-domain <project-domain>]
                          [--user-domain <user-domain>] [--inherited]
                          [--role-domain <role-domain>]
                          <role>

Adds a role assignment to a user or group on a domain or project

positional arguments:
  <role>                Role to add to <user> (name or ID)

optional arguments:
  -h, --help            show this help message and exit
  --domain <domain>     Include <domain> (name or ID)
  --project <project>   Include <project> (name or ID)
  --user <user>         Include <user> (name or ID)
  --group <group>       Include <group> (name or ID)
  --group-domain <group-domain>
                        Domain the group belongs to (name or ID). This can be
                        used in case collisions between group names exist.
  --project-domain <project-domain>
                        Domain the project belongs to (name or ID). This can
                        be used in case collisions between project names
                        exist.
  --user-domain <user-domain>
                        Domain the user belongs to (name or ID). This can be
                        used in case collisions between user names exist.
  --inherited           Specifies if the role grant is inheritable to the sub
                        projects
  --role-domain <role-domain>
                        Domain the role belongs to (name or ID). This must be
                        specified when the name of a domain specific role is
                        used.