feat: initial PBS LXC deployment on gihyeon2

pbs-variables.tf

@@ -0,0 +1,23 @@
+variable "pbs_network_bridge" {
+  description = "Network bridge for PBS LXC (SDN VNET name)"
+  type        = string
+  default     = "vmbr0" # TODO: SDN VNET 이름으로 변경 필요
+}
+
+variable "pbs_ip_address" {
+  description = "Static IP for PBS LXC (CIDR notation)"
+  type        = string
+  default     = "10.1.20.11/24"
+}
+
+variable "pbs_gateway" {
+  description = "Gateway for PBS LXC"
+  type        = string
+  default     = "10.1.20.1" # TODO: SDN 게이트웨이에 맞게 변경
+}
+
+variable "dns_servers" {
+  description = "DNS servers list"
+  type        = list(string)
+  default     = ["1.1.1.1", "8.8.8.8"]
+}