Fix restarting VPC

Project: http://git-wip-us.apache.org/repos/asf/cloudstack/repo
Commit: http://git-wip-us.apache.org/repos/asf/cloudstack/commit/f32ea44c
Tree: http://git-wip-us.apache.org/repos/asf/cloudstack/tree/f32ea44c
Diff: http://git-wip-us.apache.org/repos/asf/cloudstack/diff/f32ea44c

Branch: refs/heads/feature/systemvm-persistent-config
Commit: f32ea44cccc21066d2d86478e8d66464442f590c
Parents: f4f2590
Author: wilderrodrigues <[email protected]>
Authored: Wed Jan 21 19:29:33 2015 +0100
Committer: wilderrodrigues <[email protected]>
Committed: Mon Feb 16 16:08:36 2015 +0100

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 .../patches/debian/config/opt/cloud/bin/cs/CsGuestNetwork.py  | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
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http://git-wip-us.apache.org/repos/asf/cloudstack/blob/f32ea44c/systemvm/patches/debian/config/opt/cloud/bin/cs/CsGuestNetwork.py
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diff --git a/systemvm/patches/debian/config/opt/cloud/bin/cs/CsGuestNetwork.py 
b/systemvm/patches/debian/config/opt/cloud/bin/cs/CsGuestNetwork.py
index 43f209a..f9ecbfc 100644
--- a/systemvm/patches/debian/config/opt/cloud/bin/cs/CsGuestNetwork.py
+++ b/systemvm/patches/debian/config/opt/cloud/bin/cs/CsGuestNetwork.py
@@ -39,7 +39,12 @@ class CsGuestNetwork:
         if not self.guest:
                return self.config.get_dns()
                # Can a router provide dhcp but not dns?
-        return [ self.data['router_guest_gateway'] ] + 
self.data['dns'].split(',')
+        if 'dns' in self.data:
+            return [ self.data['router_guest_gateway'] ] + 
self.data['dns'].split(',')
+        elif "router_guest_gateway" in self.data:
+            return [ self.data['router_guest_gateway'] ]
+        else:
+            return [""]
 
     def set_dns(self, val):
                self.data['dns'] = val

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