Adding percona secgroup config
Adding percona secgroup config

Removing duplicate code around datastore specific configs

Change-Id: I32167b8f9494521a3a2afe125c68db3905a3be53
Closes-Bug: 1287315

hplustree/trove,changsimon/trove,changsimon/trove,zhangg/trove,zhangg/trove,cp16net/trove,changsimon/trove,redhat-openstack/trove,mmasaki/trove,zhujzhuo/openstack-trove,redhat-openstack/trove,cp16net/trove,fabian4/trove,fabian4/trove,cp16net/trove,hplustree/trove,openstack/trove,fabian4/trove,zhujzhuo/openstack-trove,zhujzhuo/openstack-trove,redhat-openstack/trove,mmasaki/trove,openstack/trove,mmasaki/trove