Issue #2269 has been updated by James Turnbull.

Category set to node
Status changed from Unreviewed to Needs design decision

We've always tended to push people at External and LDAP nodes when wanting 
groupings like this:

http://reductivelabs.com/trac/puppet/wiki/ExternalNodes
http://reductivelabs.com/trac/puppet/wiki/LDAPNodes

I've never had a real objection to a node_group or something syntax but someone 
would have to develop the code and tests for such a beast.  
----------------------------------------
Feature #2269: Node list feature
http://projects.reductivelabs.com/issues/2269

Author: John Motson
Status: Needs design decision
Priority: Normal
Assigned to: 
Category: node
Target version: 
Complexity: Medium
Affected version: 0.24.8
Keywords: 


Hi,

I would like to see a feature to define a list of nodes in Puppet.
As far as I understand, we can currently define multiple nodes like this:

node server1, server2, server3 {
include someresource
}

This wouldn't scale very well with puppetrun, because I would have to use 
something like:
sudo puppetrun --host server1 --host server2 --host server3
where the number of nodes could be 100.

Instead, I would like to have a node list like this:
nodelist servergroup1 {
server1,
server2,
server3
include resources
}

and I can puppetrun this with
puppetrun --nodelist servergroup1

A feature to group nodes together adds a layer of abstraction in node 
management.  It's very common to want to group similar nodes (i.e. servers 
under a single load-balancer) and be able to apply the same configuration in 
one shot, without having to go through each node definition and update 
appropriate resources.

If there is already a way to do this, my apologies for not knowing puppet 
enough. As far as I have asked around on IRC #puppet, people only pointed me to 
listing multiple hosts in one line like I described here.


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