diff --git a/main.tf b/main.tf
index b8549de..edda558 100644
--- a/main.tf
+++ b/main.tf
@@ -13,6 +13,16 @@ required_version = ">= 0.14.0"
 provider "openstack" {
   cloud = "sto4-rut"
 }
+resource "openstack_compute_servergroup_v2" "workers" {
+  name     = "workers"
+  policies = ["anti-affinity"]
+}
+resource "openstack_compute_servergroup_v2" "controllers" {
+  name     = "controllers"
+  policies = ["anti-affinity"]
+}
+
+
 resource "openstack_networking_secgroup_v2" "microk8s" {
   name        = "microk8s"
   description = "Traffic to allow between microk8s hosts"
@@ -189,6 +199,7 @@ resource "openstack_compute_instance_v2" "controller-nodes" {
   flavor_name     = "${var.controller_instance_type}"
   key_pair        = "mifr-yubi"
   security_groups = ["microk8s", "Allow SSH from SUNET jumphosts", "Allow ssh from the world"]
+  
 
   block_device {
     uuid                  = "5d24aca9-11be-4de1-9770-4a097d68f361"
@@ -198,7 +209,9 @@ resource "openstack_compute_instance_v2" "controller-nodes" {
     destination_type      = "volume"
     delete_on_termination = true
   }
-
+  scheduler_hints {
+    group = openstack_compute_servergroup_v2.controllers.id
+  }
   network {
     name = "public"
   }
@@ -218,7 +231,9 @@ resource "openstack_compute_instance_v2" "worker-nodes" {
     destination_type      = "volume"
     delete_on_termination = true
   }
-
+  scheduler_hints {
+    group = openstack_compute_servergroup_v2.workers.id
+  }
   network {
     name = "public"
   }