cli: configurable state disk type on OpenStack (#1686)

cli/internal/terraform/terraform/openstack/main.tf

@@ -169,6 +169,7 @@ module "instance_group_control_plane" {
   tags                       = local.tags
   uid                        = local.uid
   disk_size                  = var.state_disk_size
+  state_disk_type            = var.state_disk_type
   availability_zone          = var.availability_zone
   network_id                 = openstack_networking_network_v2.vpc_network.id
   init_secret_hash           = local.initSecretHash
@@ -189,6 +190,7 @@ module "instance_group_worker" {
   uid                        = local.uid
   security_groups            = [openstack_compute_secgroup_v2.vpc_secgroup.id]
   disk_size                  = var.state_disk_size
+  state_disk_type            = var.state_disk_type
   availability_zone          = var.availability_zone
   network_id                 = openstack_networking_network_v2.vpc_network.id
   init_secret_hash           = local.initSecretHash

cli/internal/terraform/terraform/openstack/modules/instance_group/main.tf

@@ -44,6 +44,7 @@ resource "openstack_compute_instance_v2" "instance_group_member" {
     source_type           = "blank"
     destination_type      = "volume"
     volume_size           = var.disk_size
+    volume_type           = var.state_disk_type
     boot_index            = 1
     delete_on_termination = true
   }

cli/internal/terraform/terraform/openstack/modules/instance_group/variables.tf

@@ -47,6 +47,11 @@ variable "disk_size" {
   description = "Disk size for the nodes, in GiB."
 }
 
+variable "state_disk_type" {
+  type        = string
+  description = "Disk/volume type to be used."
+}
+
 variable "availability_zone" {
   type        = string
   description = "The availability zone to deploy the nodes in."

cli/internal/terraform/terraform/openstack/variables.tf

@@ -26,6 +26,11 @@ variable "state_disk_size" {
   description = "The size of the state disk in GB."
 }
 
+variable "state_disk_type" {
+  type        = string
+  description = "Disk/volume type to be used."
+}
+
 variable "availability_zone" {
   type        = string
   description = "The availability zone to deploy the nodes in."

cli/internal/terraform/variables.go

@@ -232,6 +232,8 @@ type OpenStackClusterVariables struct {
 	FlavorID string
 	// FloatingIPPoolID is the ID of the OpenStack floating IP pool to use for public IPs.
 	FloatingIPPoolID string
+	// StateDiskType is the OpenStack disk type to use for the state disk.
+	StateDiskType string
 	// ImageURL is the URL of the OpenStack image to use.
 	ImageURL string
 	// DirectDownload decides whether to download the image directly from the URL to OpenStack or to upload it from the local machine.
@@ -258,6 +260,7 @@ func (v *OpenStackClusterVariables) String() string {
 	writeLinef(b, "floating_ip_pool_id = %q", v.FloatingIPPoolID)
 	writeLinef(b, "image_url = %q", v.ImageURL)
 	writeLinef(b, "direct_download = %t", v.DirectDownload)
+	writeLinef(b, "state_disk_type = %q", v.StateDiskType)
 	writeLinef(b, "openstack_user_domain_name = %q", v.OpenstackUserDomainName)
 	writeLinef(b, "openstack_username = %q", v.OpenstackUsername)
 	writeLinef(b, "openstack_password = %q", v.OpenstackPassword)