In OpenStack, certain user IDs are reserved and used to run specific OpenStack services and own specific OpenStack files. These users are set up according to the distribution packages. The following table gives an overview.
| Name | Description | ID |
|---|---|---|
| ceilometer | OpenStack Ceilometer Daemons | 166 |
| cinder | OpenStack Cinder Daemons | 165 |
| glance | OpenStack Glance Daemons | 161 |
| heat | OpenStack Heat Daemons | 187 |
| keystone | OpenStack Keystone Daemons | 163 |
| neutron | OpenStack Neutron Daemons | 164 |
| nova | OpenStack Nova Daemons | 162 |
| swift | OpenStack Swift Daemons | 160 |
| trove | OpenStack Trove Daemons | Unknown FIXME |
Each user belongs to a user group with the same name as the user.
