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The inventory must define these variables to run the step:

• cephconfigure_cluster_network: Address block to access to cluster networkfirewall: Boolean to configure the firewall (true by default)
• ceph_public_network: Address block to access to public network (ie to the worldorigin: Origin of the ceph installed files (must be set to distro). SEAPATH installs ceph with an installer (see the installation section)
• ceph_osd_disk: Device to stock datas (only for ceph-osd hosts), it's on this disk ceph will build a rbd
• cluster_network: Address block to access to cluster network
• monitor_address: Address where the host will bind
• ntp_service_enabled: Boolean to enable the NTP service (must be set to false). SEAPATH installs a specific NTP client and configure it

• osd_pool_default_min_size: Minimal number of available OSD to ensure cluster success (best: ceil(osd_pool_default_size / 2.0))

• osd_pool_default_size: Number of OSD in the cluster

• public_network: Address block to access to public network

Override configuration

ceph offers to override the configuration with ceph_conf_override:

Override global configuration

• mon_osd_min_down_reporters: (must be set to 1)
• osd_crush_chooseleaf_type: (must be set to 1)
• osd_pool_default_min_size: Minimal number of available OSD to ensure cluster success (best: ceil(osd_pool_default_size / 2.0))
• osd_pool_default_pg_num: (must be set to 128)
• osd_pool_default_pgp_num: (must be set to 128)
• osd_pool_default_size: Number of OSD in the cluster

Override mon configuration

• auth_allow_insecure_global_id_reclaim: Boolean (must be set to false)

Override osd configuration

• osd_min_pg_log_entries: (must be set to 500)
• osd_max_pg_log_entries: (must be set to 500)

Ceph provides ansible rules to configure the software, you can read the documentation here.

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