Chayan Kumar developed a Terraform sample configuration for the terraform-google-modules/terraform-docs-samples repository, focusing on enabling instance flexibility within regional managed instance groups on Google Cloud Platform. He designed the solution using HCL and Terraform, introducing an instance template and RMIG bindings that allow rank- and machine-type-based instance selections. Chayan updated provider requirements to leverage the beta provider and minimum version necessary for these features, ensuring compatibility and future-proofing. He contributed clear documentation and aligned the sample with repository conventions, providing a practical, documentation-friendly example that demonstrates advanced cloud computing concepts and supports flexible infrastructure management for GCP users.