The shrink_rgw scenario has been merge just after the PR about enable
ceph dashboard by default.
So right now the shrink_rgw scenrio doesn't have nodes in the grafana
group and fails.
We just need to set dashboard_enabled to false.
Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
Add a new functional test that deploys a Ceph cluster with three nodes
for MON, OSD and RGW and then runs shrink-rgw.yml to test it.
Signed-off-by: Rishabh Dave <ridave@redhat.com>