From 284c2646c6898ec273feba251716bf610a31dc31 Mon Sep 17 00:00:00 2001
From: Jonas Gunz <himself@jonasgunz.de>
Date: Sun, 29 Aug 2021 14:08:01 +0200
Subject: soa.serial allow environment as serial number

---
 octodns-custom-providers/provider/zonefile.py | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'octodns-custom-providers')

diff --git a/octodns-custom-providers/provider/zonefile.py b/octodns-custom-providers/provider/zonefile.py
index f03f578..6df04e1 100755
--- a/octodns-custom-providers/provider/zonefile.py
+++ b/octodns-custom-providers/provider/zonefile.py
@@ -6,6 +6,8 @@ import dns.zone
 import dns.rdataclass
 import dns.rdatatype
 
+import os
+
 class RdataParameterException(Exception):
     def __init__(self, msg):
         super().__init__(msg)
@@ -58,6 +60,12 @@ class ZoneFileProvider(BaseProvider):
         self.soa = soa
         self.soa_ttl = soa_ttl
 
+        # OctoDNS does not recursively check dicts for 'env/' keyword
+        # TODO Error handling
+        serial = self.soa['serial']
+        if type(serial) == str and serial.startswith('env/'):
+            self.soa['serial'] = int(os.environ[ serial.split('/',1)[1] ])
+
         super(ZoneFileProvider, self).__init__(id)
 
     def populate(self, zone, target=False, lenient=False):
-- 
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