Tell us about your experience writing automated tests for Ansible and related tools.

Automated testing of Ansible typically includes several levels:

1. Unit tests for roles and modules — check individual parts of the code, for example, using ansible-test or frameworks like pytest with Ansible plugins.

2. Integration tests — verify the operation of playbooks and roles on real or virtual machines. Common tools used for this include:

   • Molecule — the main tool for testing Ansible roles. It allows running tests in Docker, Vagrant, or on cloud instances.
   • Testinfra — a library for writing infrastructure tests in Python, working together with Molecule.

3. CI/CD integration — automatic test execution on commits using Jenkins, GitLab CI, etc.

Example of using Molecule:

molecule init role my_role
cd my_role
molecule test

During the process, scenarios are created to check idempotency, configuration correctness, etc.

Thus, experience usually includes writing tests with Molecule, setting up testing environments, integrating with CI, and analyzing results.