added sample for creating a NAT gateway with a virtual machine and corresponding network, subnet and public IP addresses

quickstart/101-nat-gateway-create/variables.tf

@@ -0,0 +1,17 @@
+variable "resource_group_location" {
+  type        = string
+  default     = "eastus"
+  description = "Location of the resource group."
+}
+
+variable "resource_group_name_prefix" {
+  type        = string
+  default     = "rg"
+  description = "Prefix of the resource group name that's combined with a random ID so name is unique in your Azure subscription."
+}
+
+variable "username" {
+  type        = string
+  description = "The username for the local account that will be created on the new VM."
+  default     = "azureuser"
+}