OpenStack services support various security methods including password, policy, and encryption. Additionally, supporting services including the database server and message broker support at least password security. To ease the installation process, this guide only covers password security where applicable. You can create secure passwords manually, generate them using a tool such as pwgen, or by running the following command: $ openssl rand -hex 10 For OpenStack services, this guide uses SERVICE_PASS to reference service account passwords and SERVICE_DBPASS to reference database passwords. The following table provides a list of services that require passwords and their associated references in the guide:

Passwords

Password name	Description
Database password (no variable used)	Root password for the database
RABBIT_PASS	Password of user guest of RabbitMQ
KEYSTONE_DBPASS	Database password of Identity service
DEMO_PASS	Password of user demo
ADMIN_PASS	Password of user admin
GLANCE_DBPASS	Database password for Image Service
GLANCE_PASS	Password of Image Service user glance
NOVA_DBPASS	Database password for Compute service
NOVA_PASS	Password of Compute service user nova
DASH_DBPASS	Database password for the dashboard
CINDER_DBPASS	Database password for the Block Storage service
CINDER_PASS	Password of Block Storage service user cinder
NEUTRON_DBPASS	Database password for the Networking service
NEUTRON_PASS	Password of Networking service user neutron
HEAT_DBPASS	Database password for the Orchestration service
HEAT_PASS	Password of Orchestration service user heat
CEILOMETER_DBPASS	Database password for the Telemetry service
CEILOMETER_PASS	Password of Telemetry service user ceilometer
TROVE_DBPASS	Database password of Database service
TROVE_PASS	Password of Database Service user trove

OpenStack and supporting services require administrative privileges during installation and operation. In some cases, services perform modifications to the host that can interfere with deployment automation tools such as Ansible, Chef, and Puppet. For example, some OpenStack services add a root wrapper to sudo that can interfere with security policies. See the Cloud Administrator Guide for more information. Also, the Networking service assumes default values for kernel network parameters and modifies firewall rules. To avoid most issues during your initial installation, we recommend using a stock deployment of a supported distribution on your hosts. However, if you choose to automate deployment of your hosts, review the configuration and policies applied to them before proceeding further.