added private key var

main.tf

@@ -21,6 +21,7 @@ variable "ssh_private_key" {default = "~/.ssh/id_rsa"}
 variable "image_ood" {default = "CentOS-7-x86_64-GenericCloud-1905"}
 variable "ood_instance_name" { default = "ood"}
 variable "ood_user" {default = "centos"}
+variable "private_key" {default = "~/.ssh/id_rsa"}
 
 
 # variables for node creation module