Merge pull request #5236 from willthames/ec2_inv_rds_fail_safe

ec2 inventory: Fail EC2 inventory better with restricted EC2 users

plugins/inventory/ec2.py

@@ -298,6 +298,7 @@ class Ec2Inventory(object):
                 for instance in instances:
                     self.add_rds_instance(instance, region)
         except boto.exception.BotoServerError as e:
+            if not e.reason == "Forbidden":
                 print "Looks like AWS RDS is down: "
                 print e
                 sys.exit(1)