[Openstack] Nova metadata service

Joshua Harlow harlowja at yahoo-inc.com
Tue Dec 11 01:33:57 UTC 2012

Its really just a binary that activates https://github.com/openstack/nova/blob/master/nova/api/metadata/handler.py#L100

Its a way to allow for a VM to get metadata about itself and any userdata (of which users may have provided) on boot.

Said feature is not just connected to ec2, but provides a generic mechanism for getting this type of data to an instance.

The ec2 folks I believe are just the 'originators' of said concept and that’s how it got named initially.

From: JuanFra Rodriguez Cardoso <juanfra.rodriguez.cardoso at gmail.com<mailto:juanfra.rodriguez.cardoso at gmail.com>>
Date: Monday, December 10, 2012 5:10 PM
To: Openstack <openstack at lists.launchpad.net<mailto:openstack at lists.launchpad.net>>
Subject: [Openstack] Nova metadata service

Hi guys!

After looking for in the mailing list and docs, I honestly still don't understand what really is nova-api-metadata.
it's a mandatory service in a multi-host deployment? it's only related to EC2?


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