When people compare Terraform and Kubernetes, I think the first thing to understand is that they are not really competing tools. They solve different problems.
Terraform is mainly used to create and manage infrastructure as code. For example, we can use Terraform to provision a VPC, servers, databases, networking, or even a Kubernetes cluster.
Kubernetes comes in at a different level. Its job is to run and manage containerized applications. It handles things like deployments, scaling, service discovery, load balancing, and restarting failed containers.
A simple way to think about it is: Terraform builds the environment, while Kubernetes manages the applications running inside that environment.
For example, in a real project, I might use Terraform to create an AWS environment and an EKS cluster. Then I would use Kubernetes to deploy the application, manage its containers, and scale it based on demand.
So, instead of asking whether Terraform is better than Kubernetes, I would ask what problem we are trying to solve. If the goal is infrastructure provisioning, Terraform is the right tool. If the goal is container orchestration, Kubernetes is the right tool.
In modern cloud development, they often work together rather than replace each other.