Change routes variable type.

[KevinAbregu]

TL;DR

Changing the "routes" variable type to be more specific on the main network module and on the routes module.
Right now, it's too generic.

Terraform Resources

On version 9.3.0
variable "routes" {
type = list(map(string))
description = "List of routes being created in this VPC"
default = []
}

Detailed design

I suggest a solution where the specific choices are visible, for example:

variable "routes" {
type = list(map(object({
name = optional(string)
description = optional(string)
tags = string
destination_range = string
next_hop_internet = optional(bool, false)
next_hop_ip = optional(string)
next_hop_instance = optional(string)
next_hop_instance_zone = optional(string)
next_hop_vpn_tunnel = optional(string)
priority = optional(string, "1000")
})))
description = "List of routes being created in this VPC"
default = []
}

This implies changing it on root/variables.tf and on root/modules/routes/variables.tf

Additional information

This solution will help developers who uses the network module or directly the route module, to design a solution where we can specify the variable elements directly, and it would be more similar to the rest of the resources (firewall, secondary networks, etc.)