added cassandra validation and maintenance playbooks
diff --git a/requirements.yml b/requirements.yml
index 1f5795d..cb2211c 100644
--- a/requirements.yml
+++ b/requirements.yml
@@ -1,3 +1,7 @@
 ---
 - src: https://github.com/carlosfrias/apigee-opdk-setup-default-settings
 
+- src: https://github.com/carlosfrias/apigee-opdk-cassandra-repair
+
+- src: https://github.com/carlosfrias/apigee-opdk-cassandra-rebuild
+