[#576] net-vpc - Add the ability to export/import custom routes throu… (#577)

modules/net-vpc/variables.tf

@@ -108,17 +108,16 @@ variable "project_id" {
   type        = string
 }
 
-variable "psa_ranges" {
-  description = "CIDR ranges used for Google services that support Private Service Networking."
-  type        = map(string)
-  default     = null
-  validation {
-    condition = alltrue([
-      for k, v in(var.psa_ranges == null ? {} : var.psa_ranges) :
-      can(cidrnetmask(v))
-    ])
-    error_message = "Specify valid RFC1918 CIDR ranges for Private Service Networking."
-  }
+variable "psa_config" {
+  description = "The Private Service Access configuration."
+  type = map(object({
+    ranges = list(string) # CIDRs in the format x.x.x.x/yy
+    routes = object({
+      export = bool
+      import = bool
+    })
+  }))
+  default = null
 }
 
 variable "routes" {