PuppetConf 2017

Back in the old days most system administrator's work was done manually: update packages, change a config, restart a service. With Puppet this has changed to be done in an automatic pattern where one has to code the required steps. This brings new ideas to sysops people, as we now have to follow development principles. But how do you develop Puppet code? How to deploy? Why is everything changing so fast? Should you really jump on every freshly released beta of another add-on or procedure? This talk will give an overview on why to follow the KISS principle when doing Puppet. We will dig into modern best practices and why you should simplify everything you are doing. Starting with coding principles, going to control-repo structures and content and needed branches. Continuing with resource references, hiera and inheritance, moving to roles and profiles and showing why testing is important.