Re: [Puppet Users] Re: pushing files with host based variables?

[Bruce Richardson]

On Mon, Jan 10, 2011 at 07:56:49AM -0800, trey85stang wrote:
> Thanks for the reply,
> 
> It looks like I would need an entry for every host if I were to take
> that route?  My environment would require 6000*3 entries...  That
> doesn't seem logical.
> 
> Am I understanding this correctly?

No, you're still learning.  Here's how to do it (well, one way to do
it):

    class role::basic_host {

        host { 'localhost':
            ip => '127.0.0.1',
            host_aliases => 'localhost.localdomain',
            ensure => 'present'
        }

        host { $fqdn:
            ip => $primary_ipaddress,
            host_aliases => $hostname,
            ensure => 'present'
        }

        host { 'host1.domain.com':
            ip => '192.168.1.20',
            ensure => 'present'
        }
   
        host { 'host2.domain.com':
            ip => '192.168.1.30',
            ensure => 'present'
        }
   
        host { 'unique_host.domain.com':
            ip => '192.168.1.250',
            ensure => 'present'
        }
   
        resources { 'host': purge => true }
   
    }

    node host1 {
        $primary_ipaddress = '192.168.1.1'
        include role::basic_host
    }

    node host2 {
        $primary_ipaddress = '192.168.1.2'
        include role::basic_host
    }

    node host3 {
        $primary_ipaddress = '192.168.1.3'
        include role::basic_host
        include some::other::class
    }

You see?  No need to define each host resource separately for each node
(nodes are what puppet-configured hosts/computers are called in Puppet).
What you do is you use classes to group together a linked set of
resources, then you include the appropriate classes in your nodes.

Notice that I added a couple of other important entries to the list of
host resources (you wouldn't want to be without those, and the "purge =>
true" line would otherwise remove them)).  Note also that I don't need
to specify the values of $fqdn and $hostname, because these are "facts"
which puppet can find out for itself (I do specify $primary_ipaddress in
this example, because a host may have more than one address, not all of
which will be associated with the primary hostname).

Keep asking about anything which doesn't make sense yet.
-- 
Bruce

The ice-caps are melting, tra-la-la-la.  All the world is drowning,
tra-la-la-la-la.  -- Tiny Tim.

signature.asc
Description: Digital signature