Add coordination support for Ceilometer central agent

Change-Id: I0fe8d409919c79b2d7316511c11b15bc48e35ded
diff --git a/ceilometer/server/coordination/redis.yml b/ceilometer/server/coordination/redis.yml
new file mode 100644
index 0000000..e013e0f
--- /dev/null
+++ b/ceilometer/server/coordination/redis.yml
@@ -0,0 +1,7 @@
+classes:
+- service.redis.server.single
+parameters:
+  aodh:
+    server:
+      coordination_backend:
+        url:  redis://${_param:single_address}:6379/${_param:cluster_node01_address}