Comment 0 for bug 1289195

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Lee Li (lilinguo) wrote : The duplicate security group name cause don't know witch security group use in instance

When create a security group, the duplicate name is allowed.
In create a instance, which security group to use is designed by sg name, this may cause the user don't know witch sg is used and it may be not the user wanted. So the duplicate name of sg should be not allowed.

In create instance, it's use set to filter the duplicate sg like:
sg_names = list(set(sg_names))