[PATCH v2 09/37] terraform/oci: Add Kconfig choices for disk performance provisioning

[Chuck Lever <cel@kernel.org>]

From: Chuck Lever <chuck.lever@oracle.com>

Add the vpus_per_gb argument when provisioning disk drives to
control how much performance is available. This is similar to
the performance settings available for other providers.

Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---
 .../templates/oci/terraform.tfvars.j2         |   1 +
 terraform/oci/kconfigs/Kconfig.storage        | 132 ++++++++++++++++++
 terraform/oci/main.tf                         |   1 +
 terraform/oci/vars.tf                         |   5 +
 terraform/oci/volumes/main.tf                 |  12 +-
 terraform/oci/volumes/vars.tf                 |   5 +
 6 files changed, 151 insertions(+), 5 deletions(-)

diff --git a/playbooks/roles/gen_tfvars/templates/oci/terraform.tfvars.j2 b/playbooks/roles/gen_tfvars/templates/oci/terraform.tfvars.j2
index 9c32ea5884d4..0839bfacfb24 100644
--- a/playbooks/roles/gen_tfvars/templates/oci/terraform.tfvars.j2
+++ b/playbooks/roles/gen_tfvars/templates/oci/terraform.tfvars.j2
@@ -18,6 +18,7 @@ oci_subnet_ocid = "{{ terraform_oci_subnet_ocid }}"
 {% endif %}
 oci_volumes_per_instance = {{ terraform_oci_volumes_per_instance }}
 oci_volumes_size = {{ terraform_oci_volumes_size }}
+oci_vpus_per_gb = {{ terraform_oci_vpus_per_gb }}
 oci_data_volume_device_file_name = "{{ terraform_oci_data_volume_device_file_name }}"
 oci_sparse_volume_device_file_name = "{{ terraform_oci_sparse_volume_device_file_name }}"
 
diff --git a/terraform/oci/kconfigs/Kconfig.storage b/terraform/oci/kconfigs/Kconfig.storage
index ed872a26834e..15a2a05bb26a 100644
--- a/terraform/oci/kconfigs/Kconfig.storage
+++ b/terraform/oci/kconfigs/Kconfig.storage
@@ -122,6 +122,138 @@ config TERRAFORM_OCI_VOLUMES_SIZE
 	default 4096 if TERRAFORM_OCI_VOLUMES_SIZE_4096G
 	default 8192 if TERRAFORM_OCI_VOLUMES_SIZE_8192G
 
+choice
+	prompt "Volume Performance Units for each additional volume"
+	default TERRAFORM_OCI_VPUS_PER_GB_10
+	help
+	  Higher VPUs per GB increases maximum IOPS and throughput,
+	  but costs more. For more information, see:
+
+	  https://docs.oracle.com/en-us/iaas/Content/Block/Concepts/blockvolumeperformance.htm#vpus
+
+config TERRAFORM_OCI_VPUS_PER_GB_0
+	bool "0 VPUs"
+	help
+	  Lowest cost.
+
+	  2 IOPS/GB, 3,000 IOPS maximum/volume.
+	  480 MBPS maximum/volume.
+
+config TERRAFORM_OCI_VPUS_PER_GB_10
+	bool "10 VPUs"
+	help
+	  Balanced performance.
+
+	  60 IOPS/GB, 25,000 IOPS maximum/volume.
+	  480 MBPS maximum/volume.
+
+config TERRAFORM_OCI_VPUS_PER_GB_20
+	bool "20 VPUs"
+	help
+	  Higher performance.
+
+	  75 IOPS/GB, 50,000 IOPS maximum/volume.
+	  680 MBPS maximum/volume.
+
+config TERRAFORM_OCI_VPUS_PER_GB_30
+	bool "30 VPUs"
+	help
+	  Ultra high performance.
+
+	  90 IOPS/GB, 75,000 IOPS maximum/volume.
+	  880 MBPS/volume.
+
+config TERRAFORM_OCI_VPUS_PER_GB_40
+	bool "40 VPUs"
+	help
+	  Ultra high performance.
+
+	  105 IOPS/GB, 100,000 IOPS maximum/volume.
+	  1,080 MBPS maximum/volume.
+
+config TERRAFORM_OCI_VPUS_PER_GB_50
+	bool "50 VPUs"
+	help
+	  Ultra high performance.
+
+	  120 IOPS/GB, 125,000 IOPS maximum/volume.
+	  1,280 max MBPS/volume.
+
+config TERRAFORM_OCI_VPUS_PER_GB_60
+	bool "60 VPUs"
+	help
+	  Ultra high performance.
+
+	  135 IOPS/GB, 150,000 IOPS maximum/volume.
+	  1,480 max MBPS/volume.
+
+config TERRAFORM_OCI_VPUS_PER_GB_70
+	bool "70 VPUs"
+	help
+	  Ultra high performance.
+
+	  150 IOPS/GB, 175,000 IOPS maximum/volume.
+	  1,680 max MBPS/volume.
+
+config TERRAFORM_OCI_VPUS_PER_GB_80
+	bool "80 VPUs"
+	help
+	  Ultra high performance.
+
+	  165 IOPS/GB, 200,000 IOPS maximum/volume.
+	  1,880 max MBPS/volume.
+
+config TERRAFORM_OCI_VPUS_PER_GB_90
+	bool "90 VPUs"
+	help
+	  Ultra high performance.
+
+	  180 IOPS/GB, 225,000 IOPS maximum/volume.
+	  2,080 max MBPS/volume.
+
+config TERRAFORM_OCI_VPUS_PER_GB_100
+	bool "100 VPUs"
+	help
+	  Ultra high performance.
+
+	  195 IOPS/GB, 250,000 IOPS maximum/volume.
+	  2,280 max MBPS/volume.
+
+config TERRAFORM_OCI_VPUS_PER_GB_110
+	bool "110 VPUs"
+	help
+	  Ultra high performance.
+
+	  210 IOPS/GB, 275,000 IOPS maximum/volume.
+	  2,480 max MBPS/volume.
+
+config TERRAFORM_OCI_VPUS_PER_GB_120
+	bool "120 VPUs"
+	help
+	  Ultra high performance.
+
+	  225 IOPS/GB, 300,000 IOPS maximum/volume.
+	  2,680 max MBPS/volume.
+
+endchoice
+
+config TERRAFORM_OCI_VPUS_PER_GB
+	int
+	output yaml
+	default 0 if TERRAFORM_OCI_VPUS_PER_GB_0
+	default 10 if TERRAFORM_OCI_VPUS_PER_GB_10
+	default 20 if TERRAFORM_OCI_VPUS_PER_GB_20
+	default 30 if TERRAFORM_OCI_VPUS_PER_GB_30
+	default 40 if TERRAFORM_OCI_VPUS_PER_GB_40
+	default 50 if TERRAFORM_OCI_VPUS_PER_GB_50
+	default 60 if TERRAFORM_OCI_VPUS_PER_GB_60
+	default 70 if TERRAFORM_OCI_VPUS_PER_GB_70
+	default 80 if TERRAFORM_OCI_VPUS_PER_GB_80
+	default 90 if TERRAFORM_OCI_VPUS_PER_GB_90
+	default 100 if TERRAFORM_OCI_VPUS_PER_GB_100
+	default 110 if TERRAFORM_OCI_VPUS_PER_GB_110
+	default 120 if TERRAFORM_OCI_VPUS_PER_GB_120
+
 config TERRAFORM_OCI_DATA_VOLUME_DEVICE_FILE_NAME
 	string "Data volume's device file name"
 	output yaml
diff --git a/terraform/oci/main.tf b/terraform/oci/main.tf
index d231f2225e5d..1d2d0f82e00f 100644
--- a/terraform/oci/main.tf
+++ b/terraform/oci/main.tf
@@ -50,6 +50,7 @@ module "volumes" {
   vol_instance_name       = element(var.kdevops_nodes, count.index)
   vol_volume_count        = var.oci_volumes_per_instance
   vol_volume_size         = var.oci_volumes_size
+  vol_vpus_per_gb         = var.oci_vpus_per_gb
 }
 
 resource "oci_core_vcn" "kdevops_vcn" {
diff --git a/terraform/oci/vars.tf b/terraform/oci/vars.tf
index c116829fbc72..401341feb34b 100644
--- a/terraform/oci/vars.tf
+++ b/terraform/oci/vars.tf
@@ -98,3 +98,8 @@ variable "oci_volumes_size" {
   description = "The size of additional block volumes, in gibibytes"
   type        = number
 }
+
+variable "oci_vpus_per_gb" {
+  description = "Volume performance units"
+  type        = number
+}
diff --git a/terraform/oci/volumes/main.tf b/terraform/oci/volumes/main.tf
index 56b9a476015a..7483ff72836e 100644
--- a/terraform/oci/volumes/main.tf
+++ b/terraform/oci/volumes/main.tf
@@ -1,9 +1,11 @@
 resource "oci_core_volume" "kdevops_volume_extra" {
-  count               = var.vol_volume_count
-  availability_domain = var.vol_availability_domain
-  display_name        = format("kdevops_%s_volume%02d", var.vol_instance_name, count.index + 1)
-  compartment_id      = var.vol_compartment_ocid
-  size_in_gbs         = var.vol_volume_size
+  count                = var.vol_volume_count
+  availability_domain  = var.vol_availability_domain
+  compartment_id       = var.vol_compartment_ocid
+  display_name         = format("kdevops_%s_vol%02d", var.vol_instance_name, count.index + 1)
+  is_auto_tune_enabled = false
+  size_in_gbs          = var.vol_volume_size
+  vpus_per_gb          = var.vol_vpus_per_gb
 }
 
 locals {
diff --git a/terraform/oci/volumes/vars.tf b/terraform/oci/volumes/vars.tf
index 57c5e2bf646b..ee702c2d713f 100644
--- a/terraform/oci/volumes/vars.tf
+++ b/terraform/oci/volumes/vars.tf
@@ -27,3 +27,8 @@ variable "vol_volume_size" {
   description = "Size of each volume, in gibibytes"
   type        = number
 }
+
+variable "vol_vpus_per_gb" {
+  description = "Volume performance units"
+  type        = number
+}
-- 
2.51.0