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 = {}
+}