[chef] Re: aws autoscaling and chef cleanup

[Alex Corley < >]

http://www.nuvolecomputing.com/2012/07/02/chef-node-de-registration-for-autoscaling-groups/

(Not my article)

This is not a self-cleanup, requires a backend workflow/process, but it 
can be expanded in any number of ways.

- alex

On 05/17/2013 11:43 AM, Sam Darwin wrote:
> If using AWS auto-scaling + Chef, the final step of instance cleanup seems to
> be slightly unclear.    
>
> One solution is to run a script in /etc/rc0.d which is called on shutdown.
> "knife node delete".  This requires knife to be configured and working on the
> instance, which is a (minor) pain.    This method will also fail for an abrupt
> machine crash.
>
> Another solution is to have a script which queries chef server for instances
> that haven't checked in for a while, and removes those.   That would require
> having chef-client running very often or as a daemon.   
>
> I wonder what the security implications would be of adding functionality into
> chef-client:
>
> chef-client --remove-self-from-server
>
> Some people have posted about a script which checks for terminated instances
> and removes them.   this sounds like the best way.    Perhaps they mean to
> query AWS first, and then make changes to chef-server.    now to figure out
> how...


--
Alex Corley | Software as a Service Engineer
Zenoss, Inc. | Transforming IT Operations

 
 | Skype: acorley_zenoss | Github: anthroprose