openstack team mailing list archive

["Jake G." <dj_dark_junglist@xxxxxxxxx>]

Thanks Scott!

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@xxxxxxxxxx>
To: Jake G. <dj_dark_junglist@xxxxxxxxx> 
Cc: Dean Troyer <dtroyer@xxxxxxxxx>; "openstack@xxxxxxxxxxxxxxxxxxx" <openstack@xxxxxxxxxxxxxxxxxxx> 
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"
functionality.

cloud-init also gets user-data from the datasource, and that is very
useful for initializing images with information provided at launch time by
the user.

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
metadata service.

Scott