Ansible Automation Ansible Testing with Molecule

Question 1

What is Ansible Molecule used for?

Accepted Answer

Testing Ansible roles and collections by automatically provisioning test instances, running playbooks, and verifying the resulting state

Answer

Molecule provides a structured framework for testing Ansible roles across multiple platforms and scenarios, enabling TDD for infrastructure code.

Question 2

What is the default driver used by Molecule when initializing a new scenario?

Accepted Answer

Docker

Answer

Docker is Molecule's default driver because containers start quickly and are lightweight, making them ideal for rapid test iteration.

Question 3

What command initializes a new Molecule scenario inside an existing Ansible role?

Accepted Answer

molecule init scenario

Answer

'molecule init scenario' creates the molecule/ directory structure with default configuration files for a new test scenario.

Question 4

What does 'molecule converge' do?

Accepted Answer

It applies the role to the test instance by running the converge.yml playbook, without destroying the instance afterward

Answer

'molecule converge' applies the role to existing test instances, leaving them running for iterative development and debugging.

Question 5

What is the difference between 'molecule test' and 'molecule converge'?

Accepted Answer

'molecule test' runs the full lifecycle (create→converge→verify→destroy) for CI; 'molecule converge' only applies the role for interactive development

Answer

'molecule test' is for CI pipelines (full ephemeral lifecycle); 'molecule converge' is for development (persistent instances for iteration).

Ansible Automation Practice Test

Ansible Automation Practice Test

Ansible Automation Ansible Testing with Molecule