Adds bfd and md5 auth support to google_compute_router_peer (#2142)

* Adds support for md5 auth to net-vlan-attachment
* Adds support for md5 auth to net-ipsec-over-interconnect
* Adds support for md5 auth to net-vpn-ha
* Adds support for BFD to net-vpn-ha

modules/net-vlan-attachment/variables.tf

@@ -89,20 +89,24 @@ variable "region" {
 variable "router_config" {
   description = "Cloud Router configuration for the VPN. If you want to reuse an existing router, set create to false and use name to specify the desired router."
   type = object({
-    create    = optional(bool, true)
-    asn       = optional(number, 65001)
-    name      = optional(string, "router")
-    keepalive = optional(number)
+    create = optional(bool, true)
+    asn    = optional(number, 65001)
+    bfd = optional(object({
+      min_receive_interval        = optional(number)
+      min_transmit_interval       = optional(number)
+      multiplier                  = optional(number)
+      session_initialization_mode = optional(string, "ACTIVE")
+    }))
     custom_advertise = optional(object({
       all_subnets = bool
       ip_ranges   = map(string)
     }))
-    bfd = optional(object({
-      session_initialization_mode = optional(string, "ACTIVE")
-      min_receive_interval        = optional(number)
-      min_transmit_interval       = optional(number)
-      multiplier                  = optional(number)
+    md5_authentication_key = optional(object({
+      name = string
+      key  = string
     }))
+    keepalive = optional(number)
+    name      = optional(string, "router")
   })
   nullable = false
 }