[Openstack] Image prep. cloud-init user configuration help.
dj_dark_junglist at yahoo.com
Thu Jul 25 03:00:01 UTC 2013
I have removed cloud-init from my instance and enabled config-drive in the nova.conf file.
Anything else I should take notice of?
From: Scott Moser <smoser at ubuntu.com>
To: Jake G. <dj_dark_junglist at yahoo.com>
Cc: Dean Troyer <dtroyer at gmail.com>; "openstack at lists.launchpad.net" <openstack at lists.launchpad.net>
Sent: Thursday, July 25, 2013 10:58 AM
Subject: Re: [Openstack] Image prep. cloud-init user configuration help.
On Wed, 24 Jul 2013, Jake G. wrote:
> I got the user correct now I am wondering why this is nessasary for my environment.
> I am not using Amazon EC2 services so why would I need to get metadata from there API?
> Can someone explain?
Cloud-init uses the "datasource" of the EC2 Metadata service, that
Openstack provides a workalike for.
That metadata service has things like "instance-id" and "hostname" that
are useful. cloud-init uses instance-id for "run-once-per-instance"
cloud-init also gets user-data from the datasource, and that is very
useful for initializing images with information provided at launch time by
If you enable config-drive in openstack, then cloud-init will find the
same data above from the config-drive, and wont bother looking for the ec2
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