Use difflib to log haproxy config changes (#666)

mesosphere · Mar 24, 2020 · d0b0ade · d0b0ade
1 parent fab254a
commit d0b0ade
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/marathon_lb.py b/marathon_lb.py
@@ -34,6 +34,7 @@
 import time
 import datetime
 import urllib.parse
+import difflib
 from itertools import cycle
 from collections import defaultdict
 from operator import attrgetter
@@ -1507,6 +1508,11 @@ def compareWriteAndReloadConfig(config, config_file, domain_map_array,
             logger.info(
                 "running config is different from generated config"
                 " - reloading")
+            for hunk in difflib.unified_diff(
+                runningConfig.splitlines(),
+                config.splitlines()
+            ):
+                logger.info(hunk)
             if writeConfigAndValidate(
                     config, config_file, domain_map_string, domain_map_file,
                     app_map_string, app_map_file, haproxy_map):