Hi, I'd like you to take a look at this patch for potential DocImpact. https://review.openstack.org/38447 Log: commit b73adef6cd9454a51d7834cc3f15b6f9458e882a Author: Mehdi Abaakouk <mehdi.abaakouk at enovance.com> Date: Wed Jul 24 12:26:53 2013 +0200 Add documentation on nova user defined metadata This change add explaination about the special 'metering.' nova metadata. DocImpact Change-Id: Ia87da80fb63eb7a7559e5a5a41182ba51653c520 Automatically generated bug (please review): https://bugs.launchpad.net/bugs/1204450