Add metadata server to the host

This plugin installs metadata server (MDS) to the host.

MDS stores metadata on behalf of the Ceph Filesystem (i.e., Ceph Block Devices and Ceph Object Storage do not use MDS). Ceph Metadata Servers make it feasible for POSIX file system users to execute basic commands like ls, find, etc. without placing an enormous burden on the Ceph Storage Cluster.

• Overview
• Parameters and roles
• Configuration example