Infrastructural as Code is an IT approach where the process involved in infrastructure configuration, deployment, and monitoring are checked through coded expressions. IaC also increases the deployment rate and is significant when applied with cloud resources. 

“IaC at scale” means using this approach for massive cloud infrastructures, for thousands of resources in single or multiple environments. That is why adopting IaC to scale up its use brings into focus the aspects of agility, efficiency, and consistency in the infrastructure. However, it also creates problems regarding the organization of the dependencies and the coordination of the configurations that are to be in place across several resources.