added pgcluster tf files

pgcluster.tf

@@ -0,0 +1,23 @@
+resource "openstack_compute_instance_v2" "pg-nodes" {
+  count           = var.pgcluster_instance_count
+  name            = "${var.pgcluster_name}-${count.index}.${var.dns_suffix}"
+  flavor_name     = "${var.pgcluster_instance_type}"
+  key_pair        = "thorslund"
+  security_groups = ["https", "microk8s", "Allow SSH from SUNET jumphosts"]
+  
+
+  block_device {
+    uuid                  = "5d24aca9-11be-4de1-9770-4a097d68f361"
+    source_type           = "image"
+    volume_size           = 20
+    boot_index            = 0
+    destination_type      = "volume"
+    delete_on_termination = true
+  }
+  scheduler_hints {
+    group = openstack_compute_servergroup_v2.controllers.id
+  }
+  network {
+    name = "public"
+  }
+}

vars.tf

@@ -4,6 +4,9 @@ variable "worker_instance_count" {
 variable "controller_instance_count" {
   default = "3"
 }
+variable "pgcluster_instance_count" {
+  default = "3"
+}
 
 variable "controller_instance_type" {
   default = "b2.c2r4"
@@ -20,6 +23,13 @@ variable "worker_name" {
 variable "controller_name" {
   default = "internal-sto4-prod-k8sc"
 }
+variable "pgcluster_name" {
+  default = "internal-sto4-prod-k8spg"
+}
+variable "pgcluster_instance_type"{
+  default = "b2.c2r8"
+}
+
 variable "dns_suffix" {
   default = "rut.sunet.se"
 }