Update main.tf

main.tf

-resource "openstack_networking_network_v2" "network" {
+# creates public and private keypair
+resource "openstack_compute_keypair_v2" "test-keypair" {
+  name = "my-keypair"
+}
 
-  provisioner "file" {
-    source      = "network_create"
-    destination = "/network_create"
-  }
+# creates dmznet
+resource "openstack_networking_network_v2" "ohpc" {
+  name           = "dmznet"
+  admin_state_up = "true"
+}
 
-  provisioner "remote-exec" {
-    inline = [
-      "source network_create",
-    ]
-  }
+# creates dmzsubnet using the floating ip defined in datasources.tf to get the network id
+# cidr is the subnet range (that subnet range and dns nameservers from the network create file in feat-openstack) 
+resource "openstack_networking_subnet_v2" "terraform" {
+  name            = "dmzsubnet"
+  network_id      = "${openstack_networking_network_v2.ohpc.id}"
+  cidr            = "192.168.100.0/24"
+  ip_version      = 4
+  dns_nameservers = ["8.8.8.8"]
 }
 
-# creates public and private keypair
-resource "openstack_compute_keypair_v2" "test-keypair" {
-  name = "my-keypair"
+# defines the router borderrouter using floating ip defined in datasources.tf to create the external network id
+resource "openstack_networking_router_v2" "ohpc" {
+  name                = "borderrouter"
+  admin_state_up      = "true"
+  external_network_id = "${data.openstack_networking_network_v2.ohpc.id}"
+}
+
+# creates the router and subnet id using info defined above 
+resource "openstack_networking_router_interface_v2" "ohpc" {
+  router_id = "${openstack_networking_router_v2.ohpc.id}"
+  subnet_id = "${openstack_networking_subnet_v2.ohpc.id}"
 }
 
 # defines where floating ip will come from using variable from vars.tf