diff --git a/tools/cicdansible/heat/installer.yaml b/tools/cicdansible/heat/installer.yaml
index 7dd585d..793386c 100644
--- a/tools/cicdansible/heat/installer.yaml
+++ b/tools/cicdansible/heat/installer.yaml
@@ -171,6 +171,13 @@
           data: { num_nodes: { get_param: num_nodes } }
           #This is number of all nodes + 2 (infra instance and installer)
           expression: "$.data.num_nodes + 2"
+  #Affinity Policy - nodes spread onto as many physical machines as possible (aka. .anti-affinity.).
+  anti_affinity_group:
+   type: OS::Nova::ServerGroup
+   properties:
+     name: k8s nodes on separate computes
+     policies:
+      - anti-affinity
   #Resource group to deploy n nodes using node template for each, each node numbered starting from 0.
   nodes:
     type: OS::Heat::ResourceGroup
@@ -187,6 +194,8 @@
           flavor_name: { get_param: node_flavor_name }
           notify_command: { get_attr: ["instance_wait_handle", "curl_cli"] }
           security_group: { get_resource: secgroup }
+          scheduler_hints:
+            group: { get_resource: anti_affinity_group }
     depends_on: [routercon, instance_wait_handle]
   #Nfs storage volume for first node.
   nfs_storage:
@@ -224,6 +233,7 @@
       image_name: { get_param: image_name }
       notify_command: { get_attr: ["instance_wait_handle", "curl_cli"] }
       security_group: { get_resource: secgroup }
+      scheduler_hints: {}
     depends_on: [instance_wait_handle]
   #Volume attachment for infra node.
   resources_storage_attachment:
@@ -249,6 +259,7 @@
       subnet: { get_resource: privsubnet }
       notify_command: { get_attr: ["instance_wait_handle", "curl_cli"] }
       security_group: { get_resource: secgroup }
+      scheduler_hints: {}
     depends_on: instance_wait_handle
   #Floating ip for installer.
   installer_fip_assoc: