bifrost/doc/source/user/keystone.rst

Bifrost execution with Keystone

Ultimately, as bifrost was designed for relatively short-lived installations to facilitate rapid hardware deployment, the default operating mode is referred to as noauth mode. With that, in order to leverage keystone authentication for the roles, one of the following steps need to take place.

1. Update the role defaults for each role you plan to make use. This may not make much sense for most users, unless they are carrying such changes as downstream debt.

2. Invoke ansible-playbook with variables being set to override the default behavior. Example:

   -e noauth_mode=false -e cloud_name=bifrost

3. Set the global defaults for tagret (master/playbooks/inventory/group_vars/target).

OpenStack Client use with bifrost installed Keystone

A user wishing to invoke OSC commands against the bifrost installation, should set the OS_CLOUD environment variable. An example of setting the environment variable and then executing the OSC command to list all baremetal nodes:

export OS_CLOUD=bifrost
openstack baremetal node list

Keystone roles

Ironic, which is the underlying OpenStack component bifrost helps a user leverage, supports two different roles in keystone that helps govern the rights a user has in keystone.

These roles are baremetal_admin and baremetal_observer and a user can learn more about the roles from the ironic install guide.

Individual playbook use with os-client-config

The OpenStack Ansible modules utilize os-client-config to obtain authentication details to connect to determine details.

If noauth_mode is explicitly disabled, the bifrost roles that speak with Ironic for actions such as enrollment of nodes and deployment, automatically attempt to collect authentication data from os-client-config. Largely these details are governed as environment variables.

That being said, os-client-config supports the concept of clouds and an a user can explicitly select the cloud they wish to deploy to via the cloud_name parameter.