Using Hiera
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Using Hiera

See Getting Started with Hiera and in particular Using Hiera with Puppet.

  1. Install Hiera

    On the master:

    root@vhost1:~# apt-get install hiera

  2. Configure Hiera

    Still on the master, edit /etc/puppet.hiera.yaml: 

    ---
:backends:
  - yaml
:logger: console
:yaml:
   :datadir: /srv/puppet/common/hiera
:hierarchy:
  - "%{environment}/%{calling_class}"
  - "%{environment}/defaults"
  - common

  3. Add some data

    In /srv/puppet/common/hiera/common.yaml, put: 

    ---
ntpserver: ntp0.xennet
ntp::server: ntp0.xennet

  4. Use Hiera in a class

    E.g. 

    file { '/tmp/hieratest':
  ensure => 'present',
  content => hiera('ntpserver'),
}

  5. Test

    On the client:

    root@vhost2:~# puppet agent -t
    root@vhost2:~# cat /tmp/hieratest 
    ntp0.xennet

To test a yaml file locally:

root@vhost1:~# hiera -c /etc/puppet/hiera.yaml ntpserver
ntp0.xennet

[Warning]Warning

Hiera uses different default paths to hiera.yaml, depending on whether it starts standalone or as a child of Puppet.

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