Add list_limit option to /etc/keystone/domains/domain.conf file
You can set it using keystone:server:domain:domain_name:identity:list_limit in reclass

Change-Id: Ic9dfdc9e7b6f28c7ff0c30455c93871f92d7feb8
diff --git a/tests/pillar/cluster.sls b/tests/pillar/cluster.sls
index 898b6ae..c6d7cc6 100644
--- a/tests/pillar/cluster.sls
+++ b/tests/pillar/cluster.sls
@@ -44,3 +44,8 @@
         port: 11211
       - host: 127.0.0.1
         port: 11211
+    domain:
+      test:
+        description: "Test domain"
+        identity:
+          list_limit: 20