The traditional way of managing systems with Puppet is to install Puppet agent on the nodes being managed and point those agents to a Puppet server (more details here). This approach works well for environments with tens or hundreds of nodes, but is an overkill for small environments with just a handful of nodes. Fortunately […]
Separating data from code in Puppet modules is advisable as it improves reusability of code. The separation can be accomplished with Hiera by having separate levels based on facts, organizational units, locations, etc. Hiera can also be used for storing private data that needs to be protected and must not be readable by outsiders. Typically […]
If editing Puppet code and Hiera directly with puppetmaster feels too easy, you can complicate the Puppet workflow as much you like by adding more components to the palette. Adding the so called control repository and r10k to Puppet environment maintenance instantly adds several phases to your initially simple workflow. There are also benefits that […]
Jotkin Puppet ENC:t (External Node Classifier), hyvänä esimerkkinä Foreman, eivät tue määriteltyjen resurssien (Defined Resource Types) käyttöä suoraan, vaan kaikki konfiguraatiot pitää sisällyttää Puppet-luokkiin. Myös Hieran kanssa määritellyt resurssit ovat hieman ongelmallisia, koska ne pitää erikseen luoda create_resources funktiolla. Eräs ratkaisu on määrittää kaikki create_resources -funktiot site.pp-tiedostossa (sovellettu täältä): create_resources('mysqldump::backup',hiera('mysqldump_backups', {})) Tämän lähestymistavan ongelma on […]
