feat: Adding community option for Azure NetappFiles Volume size control. (#493)

* Adding community option for Azure NetappFiles Volume size control.

Signed-off-by: frozentank <frozentank@gmail.com>

* Updating variable name to resolve community variable naming convention change.

Signed-off-by: frozentank <frozentank@gmail.com>

* Moving the community configuration documentation into another section.

Signed-off-by: frozentank <frozentank@gmail.com>

* Removing duplicate configuration variable description.

Signed-off-by: frozentank <frozentank@gmail.com>

* Removing community_enable_spot_nodes configuration field from documentation.

Signed-off-by: frozentank <frozentank@gmail.com>

---------

Signed-off-by: frozentank <frozentank@gmail.com>

Author: frozentank

docs/community/community_config_vars.md

@@ -8,6 +8,7 @@ Community-contributed configuration variables are listed in the tables below. Th
 ## Table of Contents
 
 * [Spot Nodes](#spot_nodes)
+* [Netapp Volume Size](#netapp_volume_size)
 
 <a name="spot_nodes"></a>
 ## Spot Nodes
@@ -27,3 +28,13 @@ To enable a Spot node pool in your AKS cluster using this module, configure the
 | community_eviction_policy | (Optional) The Eviction Policy which should be used for Virtual Machines within the Virtual Machine Scale Set powering this Node Pool. Possible values are Deallocate and Delete. Changing this forces a new resource to be created. | string | `Delete` | 10.3.0 | |
 | community_spot_max_price | (Optional) The maximum price you're willing to pay in USD per Virtual Machine. Valid values are -1 (the current on-demand price for a Virtual Machine) or a positive value with up to five decimal places. Changing this forces a new resource to be created. | string | `-1` | 10.3.0 | |
 
+<a name="netapp_volume_size"></a>
+## Netapp Volume Size
+
+Netapp Volume Size control allows you to create a Netapp Volume smaller than the Netapp Pool. This will allow other tools outside of this Terraform to create Netapp Volumes within the pool.
+
+To control the Netapp Volume size use the below community-maintained variable listed below. This will allow you to control the size of the Netapp Volume in GBs. This value must be smaller than the Netapp Pool size. There is no validation for this during the planning phase of Terraform. If this is misconfigured, the Terraform Apply will fail when attempting to deploy the volume.
+
+| Name | Description | Type | Default | Release Added | Notes |
+| :--- | ---: | ---: | ---: | ---: | ---: |
+| community_netapp_volume_size | Size of the netapp volume | number | 0 | 10.3.0 | Zero will disable, must be smaller than the Netapp Pool. The value is given in GB |

main.tf

@@ -264,6 +264,8 @@ module "netapp" {
   tags                = var.tags
   allowed_clients     = concat(module.vnet.subnets["aks"].address_prefixes, module.vnet.subnets["misc"].address_prefixes)
   depends_on          = [module.vnet]
+
+  community_netapp_volume_size = var.community_netapp_volume_size
 }
 
 data "external" "git_hash" {

modules/azurerm_netapp/main.tf

@@ -33,7 +33,7 @@ resource "azurerm_netapp_volume" "anf" {
   subnet_id           = var.subnet_id
   network_features    = var.network_features
   protocols           = var.protocols
-  storage_quota_in_gb = var.size_in_tb * 1024
+  storage_quota_in_gb = var.community_netapp_volume_size == 0 ? var.size_in_tb * 1024 : var.community_netapp_volume_size
   tags                = var.tags
 
   export_policy_rule {

modules/azurerm_netapp/variables.tf

@@ -59,3 +59,11 @@ variable "tags" {
   description = "Map of tags to be placed on the Resources"
   type        = map(any)
 }
+
+# Community Contribution
+# Netapp Volume Size control
+variable "community_netapp_volume_size" {
+  description = "Community Contributed field. Will manually set the value of the Netapp Volume smaller than the Netapp Pool. This value is in GB."
+  type = number
+  default = 0
+}

variables.tf

@@ -835,3 +835,11 @@ variable "node_resource_group_name" {
   type    = string
   default = ""
 }
+
+# Community Contribution
+# Netapp Volume Size control
+variable "community_netapp_volume_size" {
+  description = "Community Contributed field. Will manually set the value of the Netapp Volume smaller than the Netapp Pool. This value is in GB."
+  type = number
+  default = 0
+}