Deploy the ceph cluster with cephadm for devstack-plugin-ceph

Allow users to deploy the ceph cluster with cephadm. Add a macro "CEPHADM_DEPLOY" that can be toggled to pick the deployment mode.

CephFS driver must stop using DBUS to communicate with nfs-ganesha for OpenStack Shared File Systems Service (Manila)

The CephFS driver in manila currently uses "dbus-send" to send signals to nfs-ganesha in order to create, update and delete NFS exports. This approach has some pitfalls: 1) Service deployment is constrained: the manila-share service (where the cephfs driver runs) has to be able to have access to the dbus socket tha...

API v1.1 - Update user guide for zaqar

API reference, curl examples, etc.