From fe106462f0daa6ec9536887cf3732a9d8e056a60 Mon Sep 17 00:00:00 2001
From: Daniel Niasoff <4070285+dniasoff@users.noreply.github.com>
Date: Mon, 1 Jan 2024 17:27:58 +0000
Subject: fix to handle OpenStack where mtu exists but is null

---
 cloudinit/config/cc_vyos.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'cloudinit')

diff --git a/cloudinit/config/cc_vyos.py b/cloudinit/config/cc_vyos.py
index 8f2e7f46..550811b7 100644
--- a/cloudinit/config/cc_vyos.py
+++ b/cloudinit/config/cc_vyos.py
@@ -466,7 +466,7 @@ def set_config_interfaces_v1(config, iface_config: dict):
             config.set_tag(['interfaces', 'ethernet'])
 
         # configre MTU
-        if 'mtu' in iface_config:
+        if 'mtu' in iface_config and iface_config['mtu'] is not None:
             set_ether_mtu(config, iface_name, iface_config['mtu'])
         # We still need to set default MTU for Ethernet, for compatibility reasons
         else:
-- 
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