Molecule

Molecule is designed to aid in the development and testing of Ansible roles. Molecule provides support for testing with multiple instances, operating systems and distributions, virtualization providers, test frameworks and testing scenarios. Molecule is opinionated in order to encourage an approach that results in consistently developed roles that are well-written, easily understood and maintained.

Molecule uses Ansible playbooks to exercise the role and its associated tests. Molecule supports any provider [1] that Ansible supports.

[1]	Providers can be bare-metal, virtual, cloud or containers. If Ansible can use it, Molecule can test it. Molecule simply leverages Ansible's module system to manage instances.