No Server Left Behind - Miguel Di Ciurcio Filho, Instruct

Successfully Rolling Out Puppet on Legacy Environments

A big percentage of companies do not use proper configuration management nor automation. In this talk, I will share various ideas and experiences, making the audience feel much more prepared and confident in rolling out Puppet to manage old or legacy environments that might be left out of automation and configuration management. It is possible to roll out the Puppet agent with ease on these challenging scenarios, letting Puppet gradually fully manage everything with confidence and close to no impact. One of the reasons that commonly makes companies afraid of rolling out the Puppet agent is the impact of actually letting it do its job, since there might be so much accumulated technical debt due to years of manual work. I’ll show successful strategies used on some of our clients that demonstrate Puppet’s powerful built-in state modeling and simulation mechanisms and various useful resource types that let us very granularly manage configuration without breaking what is already in place.