Extend worker node count and create rook volume on workers.

IaC-test/nodes.tf

@@ -56,15 +56,10 @@ resource "openstack_compute_instance_v2" "controller-nodes" {
 # Worker node resources
 #
 
-
-#
-# Controller node resources
-#
-
 resource "openstack_networking_port_v2" "kubewport" {
   name                = "${var.worker_name}${count.index+1}-${replace(var.dns_suffix,".","-")}-port"
   # We create as many ports as there are instances created
-  count               =  var.controller_instance_count
+  count               =  var.worker_instance_count
   network_id          = data.openstack_networking_network_v2.public.id
   # A list of security group ID
   security_group_ids  = [
@@ -76,7 +71,7 @@ resource "openstack_networking_port_v2" "kubewport" {
 }
 
 resource "openstack_blockstorage_volume_v3" "kubewvolumeboot" {
-  count                = var.controller_instance_count # size of cluster
+  count                = var.worker_instance_count # size of cluster
   name                 = "${var.worker_name}${count.index+1}-${replace(var.dns_suffix,".","-")}-vol"
   description          = "OS volume for kubernetes worker node ${count.index + 1}"
   size                 = 100
@@ -84,6 +79,14 @@ resource "openstack_blockstorage_volume_v3" "kubewvolumeboot" {
   enable_online_resize = true # Allow us to resize volume while attached.
 }
 
+resource "openstack_blockstorage_volume_v3" "kubewvolumerook" {
+  count                = var.worker_instance_count # size of cluster
+  name                 = "${var.worker_name}${count.index+1}-${replace(var.dns_suffix,".","-")}-rook-vol"
+  description          = "Rook storage volume for kubernetes worker node ${count.index + 1}"
+  size                 = 100
+  enable_online_resize = true # Allow us to resize volume while attached.
+}
+
 
 resource "openstack_compute_instance_v2" "worker-nodes" {
   count           = var.worker_instance_count
@@ -102,6 +105,13 @@ resource "openstack_compute_instance_v2" "worker-nodes" {
     destination_type = "volume"
     boot_index       = 0
   }
+  block_device {
+    uuid             = resource.openstack_blockstorage_volume_v3.kubewvolumerook[count.index].id
+    source_type      = "volume"
+    destination_type = "volume"
+    boot_index       = 1
+  }
+
   scheduler_hints {
     group = openstack_compute_servergroup_v2.workers.id
   }

IaC-test/vars.tf

@@ -9,7 +9,7 @@ variable "keyname" {
 }
 
 variable "worker_instance_count" {
-  default = "3"
+  default = "4"
 }
 variable "controller_instance_count" {
   default = "3"