Ansible: What Is It and What Not - A Comprehensive Review

Ansible, sponsored by Red Hat, has emerged as one of the most straightforward and powerful IT automation platforms available today. Its ability to streamline operations across development, network administration, and managerial tasks sets it apart in the competitive automation industry.

With over a quarter-million downloads and immense popularity on GitHub, Ansible has solidified its position as a reliable open-source tool. Its transparency and security benefits make it a top choice for businesses of all sizes.

Best Features of Ansible

Ansible offers numerous advantages that make it stand out in the world of automation tools. Below, we’ll explore some of its key features in detail.

Ansible is Simple

Ansible’s core philosophy revolves around simplicity. Unlike tools like Puppet, Ansible doesn’t require knowledge of complex programming languages. Its user-friendly design and elegant UI make it accessible to both beginners and experienced DevOps professionals.

With a gentle learning curve, users can get up and running with Ansible in just a few hours.

Ansible is Powerful

Ansible integrates application deployment, configuration management, and workflow orchestration into a single cohesive platform. These tools empower teams to deliver error-free software efficiently.

It allows complete lifecycle control of applications, minimizing manual intervention and reducing human errors.

Ansible is Agentless

One of Ansible's standout features is its agentless architecture. It uses secure communication protocols like OpenSSH and WinRM, eliminating vulnerabilities associated with agent-based systems.

This design enhances system security and reduces maintenance overhead.

Ansible is Predictable

Ansible operates in a well-defined, step-by-step workflow. Tasks execute sequentially, maintaining consistency across operations. While some might view synchronous task execution as a limitation, it simplifies debugging and ensures reliability.

This predictability makes Ansible an ideal choice for startups and small businesses.

Ansible is Efficient

Ansible is efficient by design. It doesn’t require additional software installations, which saves storage space and reduces deployment costs.

Its built-in capabilities provide everything needed to manage an entire IT department seamlessly.

Ansible is Secure

Security is a top priority in Ansible. Although it doesn’t have the extensive security features of paid software, it offers robust security automation capabilities. Firewall rules, remote node updates, and other security configurations can be easily automated.

With Ansible, security updates are uniformly applied across all remote systems.

Disadvantages of Ansible

Despite its strengths, Ansible has a few limitations worth considering.

Ansible is Relatively Young

Released in 2012, Ansible is relatively young compared to competitors like Puppet and Chef. While it has made significant progress, its youth may lead to occasional gaps in functionality and community support.

Ansible Lacks State Management

Ansible does not track the state of tasks. Once a task is complete, it moves to the next one, regardless of success or failure. This can result in inconsistent automation results in complex workflows.

In contrast, tools like Puppet provide better state tracking.

Ansible User Interface Needs Improvement

While Ansible's user interface is clean and simple, it lacks the flexibility to handle all command-line tasks. Approximately 85-90% of command-line features translate well to the UI, but the remaining percentage may require manual intervention.

Additionally, occasional synchronization issues between the UI and CLI can cause errors.

Windows Support is Limited

Ansible can operate on Windows, but it requires a Linux control machine to manage Windows hosts. This dependency complicates pure Windows-based operational environments.

Windows administrators may find this limitation challenging to work around.

Ansible Learning Resources

For those looking to deepen their understanding of Ansible, here are some valuable resources:

- LinkedIn Learning: Offers excellent video tutorials on Ansible essentials and system management.
- DevOps Junction: Provides detailed Ansible Playbook examples.
- Ansible Galaxy: A community-driven repository for Ansible playbooks and reusable roles.

Conclusion

Ansible is an exceptional automation tool that balances simplicity, power, and security. While it has a few shortcomings—like limited state management and a basic UI—it remains an excellent choice for organizations looking for reliable IT automation.

Whether you're a seasoned DevOps engineer or just starting your automation journey, Ansible is a tool worth exploring.