Added ansible role to deploy grafana

Added host group for grafana deployment

Co-Authored-By: zhubingbing <zhubingbing10@gmail.com>

Change-Id: I3dec4e8586b6f65fa7de66a48506d1c79de2fe1e
Partially-Implements: Blueprint performance-monitoring

Partially-Implements: blueprint ansible-aodh

Change-Id: I9e20f4bf5e7d8f37f243ae15746e2b7bb49eb20c

Change-Id: I13c50a78b2dc7c98b720a4b2e7161104213bd295
Implements: bp ansible-ceilometer

Change-Id: I7176bdc897e07f28684eedffb3c59e407eba322e
Partially-Implements: blueprint pre-pull-images

Implements blueprint radosgw-container

Change-Id: Idc88a67a0979be626d3eaa9b2b9a527010aa2006

Add the initial playbooks for making ceph and ansible play nice
together.

This does not include all of the openstack changes to make things like
nova, glance, and cinder work. This will simply build the ceph cluster
and thats it. The next patchset will do the OpenStack integration.

DocImpact
Change-Id: Ie1697dde5f92e833652933a80f0004f31b641330
Partially-Implements: blueprint ceph-container