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Home OpenStack-Ansible Installation Guide

Configuring the Ceph client (optional)

Ceph is a massively scalable, open source, distributed storage system.

These links provide more details around how to use Ceph with OpenStack:

Configuring Ceph storage servers is outside the scope of this documentation.

Authentication

The cephx authentication method is strongly recommended in the Ceph config reference and OpenStack-Ansible enables cephx by default for the Ceph client. Deployers may choose to override this setting by using the cephx Ansible variable:

cephx: False

Ceph must be deployed on a trusted network if cephx is disabled.

Configuration file overrides

OpenStack-Ansible provides the ceph_conf_file variable that allows deployers to specify configuration file options to override the default Ceph configuration:

ceph_conf_file: |
  [global]
  fsid = 4037aa5f-abde-4378-9470-f73dbd6ceaba
  mon_initial_members = mon1.example.local,mon2.example.local,mon3.example.local
  mon_host = 10.16.5.40,10.16.5.41,10.16.5.42
  auth_cluster_required = cephx
  auth_service_required = cephx
  auth_client_required = cephx

Monitors

The Ceph Monitor maintains a master copy of the cluster map. OpenStack-Ansible provides the ceph_mons variable and expects a list of IP addresses for the Ceph Monitor servers in the deployment:

ceph_mons: ['192.168.1.10', '192.168.1.11', '192.168.1.12']