Add reusable storage pool module with lvmcluster san pool

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

incus/modules/storage/main.tf

@@ -0,0 +1,32 @@
+terraform {
+  required_providers {
+    incus = {
+      source = "lxc/incus"
+    }
+  }
+}
+
+resource "incus_storage_pool" "hypervisor" {
+  for_each = var.hypervisors
+  name     = var.name
+  driver   = var.driver
+  target   = each.key
+  config   = var.hypervisor_config
+}
+
+resource "incus_storage_pool" "witness" {
+  for_each = var.witnesses
+  name     = var.name
+  driver   = var.driver
+  target   = each.key
+  config   = var.witness_config
+}
+
+resource "incus_storage_pool" "this" {
+  depends_on = [
+    incus_storage_pool.hypervisor,
+    incus_storage_pool.witness,
+  ]
+  name   = var.name
+  driver = var.driver
+}

incus/modules/storage/outputs.tf

@@ -0,0 +1,7 @@
+output "name" {
+  value = incus_storage_pool.this.name
+}
+
+output "driver" {
+  value = incus_storage_pool.this.driver
+}

incus/modules/storage/variables.tf

@@ -0,0 +1,25 @@
+variable "name" {
+  type = string
+}
+
+variable "driver" {
+  type = string
+}
+
+variable "hypervisors" {
+  type = set(string)
+}
+
+variable "witnesses" {
+  type = set(string)
+}
+
+variable "hypervisor_config" {
+  type    = map(string)
+  default = {}
+}
+
+variable "witness_config" {
+  type    = map(string)
+  default = {}
+}

incus/storage.auto.tfvars

@@ -0,0 +1,7 @@
+incus_storage_pools = {
+  "san" = {
+    driver            = "lvmcluster"
+    hypervisor_config = { "lvm.vg_name" = "nucVG" }
+    witness_config    = { "lvm.vg_name" = "dummyVG" }
+  }
+}

incus/storage.tf

@@ -0,0 +1,10 @@
+module "storage" {
+  source            = "./modules/storage"
+  for_each          = var.incus_storage_pools
+  name              = each.key
+  driver            = each.value.driver
+  hypervisors       = toset(keys(var.incus_hypervisors))
+  witnesses         = toset(keys(var.incus_witnesses))
+  hypervisor_config = each.value.hypervisor_config
+  witness_config    = each.value.witness_config
+}

incus/variables.tf

@@ -15,3 +15,11 @@ variable "incus_token" {
 variable "incus_networks" {
   type = map(number)
 }
+
+variable "incus_storage_pools" {
+  type = map(object({
+    driver            = string
+    hypervisor_config = map(string)
+    witness_config    = map(string)
+  }))
+}