Fix empty DNS list

ader1990 · ader1990 · commit fd3309c56798 · 2020-05-20T17:43:49.000+03:00
Method osutils.set_static_network_config expects dnsnameservers as list.

Use an empty list if the dnsnameservers is None.

Change-Id: I3b567a941336b61f3a505306f738f14e8b3db04f
diff --git a/cloudbaseinit/plugins/common/networkconfig.py b/cloudbaseinit/plugins/common/networkconfig.py
@@ -153,7 +153,7 @@ def _process_network_details(self, network_details):
                     nic.address,
                     nic.netmask,
                     nic.gateway,
-                    nic.dnsnameservers
+                    nic.dnsnameservers or []
                 )
             reboot_required = reboot or reboot_required
             # Set v6 info too if available.

Original file line number	Diff line number	Diff line change
`@@ -153,7 +153,7 @@ def _process_network_details(self, network_details):`
`153`	`153`	`nic.address,`
`154`	`154`	`nic.netmask,`
`155`	`155`	`nic.gateway,`
`156`		`- nic.dnsnameservers`
	`156`	`+ nic.dnsnameservers or []`
`157`	`157`	`)`
`158`	`158`	`reboot_required = reboot or reboot_required`
`159`	`159`	`# Set v6 info too if available.`