update

main.tf

-resource "openstack_compute_keypair_v2" "ohpc-keypair" {
-  name = "my-keypair"
-}
-
 # creates dmznet
 resource "openstack_networking_network_v2" "dmznet" {
   name           = "dmznet"
@@ -57,7 +53,7 @@ depends_on = ["openstack_networking_subnet_v2.dmzsubnet"]
   name            = "ohpc"
   image_name      = "${var.image}"
   flavor_name     = "${var.flavor}"
-  key_pair        = "${openstack_compute_keypair_v2.ohpc-keypair.name}"
+  key_pair        = "${var.ssh_key_private}"
   security_groups = ["default"]
 
 # defines the networks of the instance

vars.tfvars

-variable "image" {
-  default = "CentOS-7-x86_64-GenericCloud-1905"
-}
-
-variable "flavor" {
-  default = "m1.medium"
-}
-
-variable "pool" {
-  default = "bright-external-flat-externalnet"
-}
-
-variable "ssh_key_private" {
-  default     = "~/.ssh/id_rsa"
-  description = "Path to the SSH public key for accessing cloud instances. Used for creating AWS keypair."
-}