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When use_namespaces is True, there will be a namespace metadata proxy launched for either dhcp or router namespace, this proxy will accept metada service request , and then proxy the request to metadata server via metadata agent.  But when use_namespaces is False, there is no namespace metadata proxy running, how is the request from vm going to get to matadata server then?  I also checked that there is no NAT rule in the iptables.  So do we support metadata service with no namespace?  If we do , how is it supposed to work?  This is Juno.
Regards!
Wanjing Xu 		 	   		  
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