keystone software package provides OpenStack identity service, you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install keystone
keystone is installed in your system.
Make ensure the keystone package were installed using the commands given below,
$ sudo dpkg-query -l | grep keystone *
You will get with keystone package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Python |
| Package | keystone |
| Version | 2014.1.3-6 |
| Description | OpenStack identity service |
| Sub Section | Python |