# You will need to define those variables in your variables.tf, and use terraform apply -var 'google_region=us-central1' -var 'machine_type=n1-standard-1' -var 'username=admin' -var 'password=password' to set them when you run terraform apply. variable "my-project-id" { type = string } variable "my-cluster" { type = string } variable "google_region" { type = string } variable "machine_type" { type = string } variable "username" { type = string } variable "password" { type = string }