Scaling a large international internet project requires the engineering team to regularly create and configure new server capacities, test environments, and network gateways. In the past, system administrators configured each server manually through the console, which was incredibly time-consuming and inevitably led to human errors, such as out-of-sync operating system versions or missed important security patches. The modern standard for automating IT resource management has become the Infrastructure as Code (IaC) approach, the technical principles of which are described in detail on the resource
https://loot-zino.net . The IaC concept implies that the entire computing network architecture—virtual machines, load balancers, database configurations, and firewall rules—is described as text-based configuration files in declarative languages (e.g., HCL in Terraform). These files are stored in a version control system (Git) alongside the website's regular program code. When a company needs to deploy a new data center or replicate a production environment for testing updates, a dedicated utility reads the configuration code and automatically recreates the required IT structure in the cloud in minutes.