Puppet users - Aug 2012 - Setting hostnames in razor

All,

Is razor only really useful for configuring mass numbers of hosts? 
I''ve
been playing with it and one thing I''m not grasping is how to set a
hostname if I''m only building one host, say wiki01.foo.com.  For each
server like that would I need a separate policy, or is there some other way
people are using to pre-populate specific host information to be passed to
servers?

-- 
Kyle Sexton

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On Thu, Aug 2, 2012 at 11:02 AM, Kyle Sexton <ks@mocker.org>
wrote:
> Is razor only really useful for configuring mass numbers of hosts? 
I''ve
> been playing with it and one thing I''m not grasping is how to set
a hostname
> if I''m only building one host, say wiki01.foo.com.  For each
server like
> that would I need a separate policy, or is there some other way people are
> using to pre-populate specific host information to be passed to servers?
Yes, you need separate model per system. We have a pending pull
request to make this as simple as a puppet manifests that you can
apply:

rz_image { ''precise_image'':
  ensure => present,
  type    => ''os'',
  version => ''12.04'',
  source  => ''/mnt/nfs/ubuntu-12.04-server-amd64.iso'',
}

rz_model { ''wiki_model'':
  ensure      => present,
  image       => ''precise_image'',
  metadata    => {''domainname'' =>
''foo.com'', ''hostname_prefix'' =>
''wiki'', ''root_password'' =>
''puppet''},
  template    => ''ubuntu_precise'',
}

rz_policy { ''wiki'':
  ensure  => ''present'',
  broker  => ''none'',
  model   => ''wiki_model'',
  enabled => ''true'',
  tags    => [''virtual''],
  template => ''linux_deploy'',
  maximum => 1,
}

So you can definitely write a define resource type to wrap the puppet
resource above to create one off systems:

define system (
  $rz_tags
) {
  # parse hostname/domainname.

rz_model { $name:
  ensure      => present,
  image       => ''precise_image'',
  metadata    => {''domainname'' => $rz_domain,
''hostname_prefix'' =>
$rz_hostname, ''root_password'' =>
''puppet''},
  template    => ''ubuntu_precise'',
}

rz_policy { $name:
  ensure  => ''present'',
  broker  => ''none'',
  model   => $name,
  enabled => ''true'',
  tags    => $rz_tags,
  template => ''linux_deploy'',
  maximum => 1,
}

}

Now it should simply be:

system { ''wiki01.foo.com'':
  rz_tags => [''virtual''],
}

Would this help?

Nan

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