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About Luca Berton

Luca Berton is an Ansible automation expert, author of "Ansible for VMware by Examples" and "Ansible for Kubernetes by Example" published by Apress, and creator of the Ansible Pilot YouTube channel. He shares practical automation knowledge through tutorials, books, and video courses to help IT professionals and DevOps engineers master infrastructure automation.

Install and Configure Molecule for Efficient Ansible Role and Collection Testing

By Luca Berton · Published 2024-01-01 · Category: installation

Step-by-Step Guide to Installing Molecule on Your Local Machine and Setting Up Testing Platforms for Accurate Automation Workflows

As an Ansible automation expert, I often rely on the Molecule testing framework to test my Ansible roles and playbooks. Molecule makes it easy to validate your Ansible content across different operating systems and configurations, ensuring that your automation workflows are reliable and consistent. In this article, I will guide you through the steps to install Molecule on your local machine.

Step 1: Install Python

Molecule requires Python 3.6 or later to run. Check your current Python version by running the command python --version. If your version is lower than 3.6, you will need to install Python 3.6 or later. You can download and install Python from the official website.

Step 2: Install pip

Pip is the package installer for Python, and it is used to install Molecule and its dependencies. To install pip, run the following command:

Step 3: Install Molecule

Once you have pip installed, you can use it to install Molecule by running the command:

This will install Molecule and its dependencies on your local machine. The full requiremets.txt:

You can verify that Molecule is installed correctly by running the command molecule --version.

Step 4: Install Docker (Optional)

If you plan to use Docker as the testing platform for Molecule, you will need to install Docker on your local machine. You can download and install Docker from the official website. Once Docker is installed, you can test the Docker connection by running the command docker ps.

Step 5: Initialize Molecule

To initialize Molecule for a new Ansible role, navigate to the role directory and run the command molecule init scenario --driver . The driver name specifies the testing platform for Molecule. For example, if you want to use Docker as the testing platform, you can use the command molecule init scenario --driver docker.

Links • Ansible Molecule

Conclusion

Molecule is a powerful testing framework that helps Ansible developers validate their automation workflows. By following the steps outlined in this article, you can easily install Molecule and its dependencies on your local machine. With Molecule, you can test your Ansible roles and playbooks across different operating systems and configurations, ensuring that your automation workflows are reliable and consistent.

Related Articles • Ansible Template Guide • Ansible Docker Guide • Ansible Roles Guide

Category: installation

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