feat: add ssh_key variable support to cloud-init module

multiple/shared_modules/cloud-init.tf

@@ -1,6 +1,8 @@
 resource "libvirt_cloudinit_disk" "commoninit" {
-  name           = var.cloudinit_filename
-  user_data      = templatefile("${path.module}/../environments/cloud_init.yaml", {})
-  pool           = var.pool_name
+  name      = var.cloudinit_filename
+  user_data = templatefile("${path.module}/cloud_init.yaml", {
+    ssh_key = var.ssh_key
+  })
+  pool      = var.pool_name
   depends_on = [libvirt_pool.tf_tmp_storage]
 }

multiple/shared_modules/variables.tf

@@ -39,6 +39,13 @@ variable "cloudinit_filename" {
   type        = string
   default     = "commoninit.iso"
 }
+
+variable "ssh_key" {
+  description = "SSH authorized keys for cloud-init"
+  type        = list(string)
+  default     = []
+}
+
 variable "user_data" {
   description = "User data for cloud-init"
   type        = string