Split designate server.cluster into simple and related classes

Now it would be possible to override haproxy/keepalived options
on cluster level without overriding whole designate class.

Change-Id: Ifee404ab2704aad1447cc16bfa65eda95154d02f
diff --git a/designate/server/cluster/init.yml b/designate/server/cluster/init.yml
new file mode 100644
index 0000000..f5935d1
--- /dev/null
+++ b/designate/server/cluster/init.yml
@@ -0,0 +1,5 @@
+classes:
+- service.keepalived.cluster.single
+- service.haproxy.proxy.single
+- system.haproxy.proxy.listen.openstack.designate
+- system.designate.server.cluster.simple
\ No newline at end of file