[chef] Re: Environmental state

[Adam Jacob < >]

Hi,

You want to use search for this:

http://wiki.opscode.com/display/chef/Search

In your load balancing recipe, you would search for all the application 
servers, and then use the results in the template that configures your load 
balancer/proxy.

Best,
Adam

--  
Opscode, Inc.
Adam Jacob, Chief Product Officer
T: (206) 619-7151 E: 

 


On Tuesday, September 6, 2011 at 4:45 AM, Geoff Meakin Acid wrote:

> Hi Chef community,
>  
> I am very new to chef and have succeeded in setting up a bunch of nodes how 
> I like them in chef0.10 using roles and your most excellent community 
> cookbooks
>  
> I wonder if somebody could point me towards the right way of doing the 
> following…
>  
> Suppose I have a loadbalancing http service - e.g. nginx/apache, and want 
> to loadbalance to all my nodes with the 'applicationserver' role. The 
> loadbalancer needs to know the names or IPs of those machines so that it 
> can configure itself consistently with how many appserver nodes there are. 
> As I take appservers up and down (e.g. elastically), the loadbalancer 
> should reconfigure itself accordingly.
>  
> Can someone help me by suggesting how to manage this "environmental state" 
> in chef? How can the loadbalancing node know how many nodes have the 
> 'appserver' role applied to them, what they are, and use that information 
> to configure its files/templates?
>  
> Thanks in advance
>  
> --
>  
> Geoff