How to deploy multiple charms onto a set of VMs

[Kapil Thangavelu]

Excerpts from Haitao Jiang's message of 2012-04-26 17:07:46 -0400:
> Hi,
> 
> I have a question: we wrote a set of charms to deploy services, which
> juju deployed them into different VMs. For each of these VMs, we would
> like to deploy a common monitoring service like Nagios, how to do
> that?
> 
> Do we have to combine Nagios charm with each of our other service
> charms? What is the best practice in this situation?
> 
> Thanks a lot
> 
> Haitao
> 

Subordinate charms address these sort of cross-cutting concerns that apply 
across services. Specifically things like environment or org policy (apply 
monitoring, ldap pam/nss, etc.).

Announcement
https://lists.ubuntu.com/archives/juju/2012-April/001479.html

Docs
https://juju.ubuntu.com/docs/subordinate-services.html


There's an existing munin-node monitoring subordinate charm that attempts to 
tackle this in the context of monitoring.

http://jujucharms.com/~clint-fewbar/precise/munin-node

hope that helps,

Kapil