Serverspec

What Serverspec is

Serverspec is an open-source Ruby gem for writing RSpec tests that check server configuration against actual system state. It runs commands locally or through SSH, WinRM, and the Docker API, among other methods, and does not require agent software on target servers. Documented resource checks include packages, services, files, ports, users, Docker containers and images, Windows features, and X.509 certificates and private keys. It supports both RSpec `should` and `expect` syntax and can be used alongside Puppet, Ansible, CFEngine, and Itamae. Its stated aim is to help refactor infrastructure code. The tutorial names operating systems including Linux distributions, macOS, Windows, BSD systems, Solaris, and SmartOS, but notes that support is incomplete for some. Each test suite is intended for one machine or Docker container, with a separate RSpec command advised for each target. Installation is documented through Bundler or `gem install serverspec`. The project is maintained by Gosuke Miyashita, uses the MIT license, and lists v2.43.0, dated April 24, 2025, as its latest release.