fix: add san extension

Author: zifeo

main.tf

@@ -53,7 +53,7 @@ module "servers" {
   secgroup_id  = openstack_networking_secgroup_v2.server.id
   bootstrap_ip = local.internal_ip
   bastion_host = local.external_ip
-  san          = [local.internal_ip, local.external_ip]
+  san          = distinct(concat([local.external_ip, local.internal_ip], var.additional_san))
 
   manifests_folder = var.manifests_folder
   manifests = merge(

variables.tf

@@ -96,6 +96,11 @@ variable "lb_internal_ip" {
   default = null
 }
 
+variable "additional_san" {
+  type    = list(string)
+  default = []
+}
+
 variable "bootstrap" {
   type    = bool
   default = false