Terraform and Ansible – key differences and areas of application

Infrastructure as Code (IaC) has become an integral part of IT resource management, automating and simplifying administration processes. Among the popular tools for implementing this approach, Terraform and Ansible stand out. Both tools are widely used by DevOps engineers, but have different principles of operation and scope.

Terraform works declaratively, meaning you can describe the desired state of your infrastructure and then the system will automatically bring it to that state. This is especially useful when working with cloud services like Hetzner Cloud, where you can automatically deploy your infrastructure using configuration files.

Ansible, unlike Terraform, supports both declarative and imperative approaches. This makes the tool well suited for server configuration management, task automation, and process orchestration. These advantages make Ansible convenient for configuring a server environment and performing repetitive actions on a large number of machines.

Understanding the features of each tool allows you to effectively organize work with the infrastructure, choosing the appropriate approach depending on specific needs.