LXer: Attempt to reproduce Direct access to Nova metadata per Lars Kellogg-Stedman
 

Published at LXer:

Quoting http://blog.oddbit.com/2014/01/14/di...nova-metadata/ In an environment running Neutron, a request from your instance must traverse a number of steps: From the instance to a router, Through a NAT rule in the router namespace, To an instance of the neutron-ns-metadata-proxy, To the actual Nova metadata service

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