Litmus

Overview

Litmus is a command line tool that allows you to run acceptance tests against Puppet modules.

Litmus allows you to:

• Provision targets to test against
• Install a Puppet agent
• Install a module
• Run tests
• Tear down the infrastructure

Litmus also facilitates parallel test runs and running tests in isolation. Each step is standalone, allowing other operations between test runs, such as debugging or configuration updates on the test targets.

Install Litmus as a gem by running gem install puppet_litmus.

• Note if you choose to override the litmus_inventory.yaml location, please ensure that the directory structure you define exists.

matrix_from_metadata_v3

matrix_from_metadata_v3 tool generates a github action matrix from the supported operating systems listed in the module's metadata.json.

How to use it: in the project module root directory run bundle exec matrix_from_metadata_v3

Optional arguments

argument	value	default	description
--matrix	FILE	built-in	File containing possible collections and provisioners
--metadata	FILE	metadata.json	File containing module metadata json
--debug			Enable debug messages
--quiet			Disable notice messages
--output	TYPE	auto	Type of output to generate; auto, github or stdout
--runner	NAME	ubuntu-latest	Default Github action runner
--puppet-include	MAJOR		Select puppet major version
--puppet-exclude	MAJOR		Filter puppet major version
--platform-include	REGEX		Select platform
--platform-exclude	REGEX		Filter platform
--arch-include	REGEX		Select architecture
--arch-exclude	REGEX		Filter architecture
--provision-prefer	NAME	docker	Prefer provisioner
--provision-include	NAME	all	Select provisioner
--provision-exclude	NAME	provision_service	Filter provisioner

Refer to the built-in matrix.json for a list of supported collection, provisioners, and platforms.

Examples

• Only specific platforms

  matrix_from_metadata_v3 --platform-include redhat --platform-include 'ubuntu-(20|22).04'

• Exclude platforms

  matrix_from_metadata_v3 --platform-exclude redhat-7 --platform-exclude ubuntu-18.04

• Exclude architecture

  matrix_from_metadata_v3 --arch-exclude x86_64

Documentation

For documentation, see our Litmus Docs Site.

License

This codebase is licensed under Apache 2.0. However, the open source dependencies included in this codebase might be subject to other software licenses such as AGPL, GPL2.0, and MIT.

Other Resources

• Is it Worth the Time?