[PATCH-next 3/3] lnst.Controller.Machine: add handler in device_created()

From: Christos Sfakianakis <csfakian(a)redhat.com&gt;

Skip processing when the interface index cannot be found
in the device data. Log the action.

Signed-off-by: Christos Sfakianakis <csfakian(a)redhat.com&gt;
---
 lnst/Controller/Machine.py | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/lnst/Controller/Machine.py b/lnst/Controller/Machine.py
index 6bc82b5..d23d57c 100644
--- a/lnst/Controller/Machine.py
+++ b/lnst/Controller/Machine.py
@@ -133,7 +133,15 @@ class Machine(object):
         self.rpc_call("set_dev_netns", dev, dst.name, netns=src)
 
     def device_created(self, dev_data):
-        ifindex = dev_data["ifindex"]
+        try:
+            ifindex = dev_data["ifindex"]
+        except KeyError:
+            missing = 'data'
+            if dev_data:
+                missing = 'ifindex'
+            logging.debug("Skipping processing, device %s unavailable." %
missing)
+            return
+
         if ifindex not in self._device_database:
             new_dev = None
             if len(self._tmp_device_database) > 0:
-- 
2.17.1