Refactor: google_container_cluster

- Refactor provider block to use variable for project and region
- Update node_config to use variable for machine_type
- Add google_container_cluster resource for my-cluster
- set variables for project,region,machine_type,username and password
- Add variables.tf file for setting project,region,machine_type,username and password dynamically

terraform-gke/main.tf

@@ -0,0 +1,18 @@
+provider "google" {
+  version = "3.0"
+  project = var.my-project-id
+  region  = var.google_region
+}
+
+resource "google_container_cluster" "my-cluster" {
+  name     = var.my-cluster
+  location = var.google_region
+  node_config {
+    machine_type = var.machine_type
+  }
+  master_auth {
+    username = var.username
+    password = var.password
+  }
+}
+# terraform apply -var 'my-cluster=my-cluster-name' -var 'my-project-id=my-project-id'