2015 - DevOpsDays Singapore - Devops meets Functional Programming

This is a story of an Infrastructure team at Zalora that implemented DevOps using Haskell and Nix. The story is about: • drowning in inherent complexity of existing Puppet configuration • establishing a functional programming community inside the company • implementing configuration management using purely-functional language and package manager Nix and using NixOS as the base OS • challenges of using new tools at scale • building cloud infrastructure tools using Haskell • building a code-driven deployment platform borrowing design practices from Erlang/OTP, Mesos and other successful distributed system frameworks, accommodating engineering team growth • overcoming adoption failures and finally reaching operational happiness