Merge pull request #14872 from bcoca/ec2_inv_page_rds

page rds instances

contrib/inventory/ec2.py

@@ -498,9 +498,14 @@ class Ec2Inventory(object):
         try:
             conn = self.connect_to_aws(rds, region)
             if conn:
-                instances = conn.get_all_dbinstances()
+                marker = None
+                while True:
+                    instances = conn.get_all_dbinstances(marker=marker)
+                    marker = instances.marker
                     for instance in instances:
                         self.add_rds_instance(instance, region)
+                    if not marker:
+                        break
         except boto.exception.BotoServerError as e:
             error = e.reason