This document is for a development version of Ceph.

MGR Service

The cephadm MGR service is hosting different modules, like the Ceph Dashboard and the cephadm manager module.

Specifying Networks

The MGR service supports binding only to a specific IP within a network.

example spec file (leveraging a default placement):

service_type: mgr

Allow co-location of MGR daemons

In deployment scenarios with just a single host, cephadm still needs to deploy at least two MGR daemons in order to allow an automated upgrade of the cluster. See mgr_standby_modules in the ceph-mgr administrator’s guide for further details.

See also: Co-location of daemons.

Further Reading