From 135f2b710c2471612e5e3555f0730298f5d54718 Mon Sep 17 00:00:00 2001
From: Curtis Castrapel <ccastrapel@netflix.com>
Date: Wed, 13 Jun 2018 15:14:48 -0700
Subject: [PATCH] Limit dns queries to 10 attempts

---
 lemur/plugins/lemur_acme/dyn.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lemur/plugins/lemur_acme/dyn.py b/lemur/plugins/lemur_acme/dyn.py
index 763436a1..6ce117bf 100644
--- a/lemur/plugins/lemur_acme/dyn.py
+++ b/lemur/plugins/lemur_acme/dyn.py
@@ -41,12 +41,15 @@ def _has_dns_propagated(name, token):
 
 def wait_for_dns_change(change_id, account_number=None):
     fqdn, token = change_id
-    while True:
+    number_of_attempts = 10
+    for attempts in range(0, number_of_attempts):
         status = _has_dns_propagated(fqdn, token)
         current_app.logger.debug("Record status for fqdn: {}: {}".format(fqdn, status))
         if status:
             break
         time.sleep(20)
+    if not status:
+        raise Exception("Unable to query DNS token for fqdn {}.".format(fqdn))
     return