added compute keypair

datasources.tf

@@ -2,8 +2,7 @@ data "openstack_networking_network_v2" "public-network" {
   name = "${var.public-network-name}"
 }
 
-resource "openstack_compute_keypair_v2" "keypair" {
-  name       = "${var.keypair-name}"
-  public_key = "${file("~/.ssh/id_rsa.pub")}"
-}
-
+data "openstack_compute_keypair_v2" "keypair" {
+  name = "${var.keypair-name}"
+  public_key = "${var.ssh_public_key}"
+ }
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