variables.tf

variable "create_tgw" {
  description = "Controls if TGW should be created (it affects almost all resources)"
  type        = bool
  default     = true
}

variable "name" {
  description = "Name to be used on all the resources as identifier"
  type        = string
  default     = ""
}

variable "amazon_side_asn" {
  description = "The Autonomous System Number (ASN) for the Amazon side of the gateway. By default the TGW is created with the current default Amazon ASN."
  type        = string
  default     = "64512"
}

variable "enable_auto_accept_shared_attachments" {
  description = "Whether resource attachment requests are automatically accepted"
  type        = bool
  default     = false
}

variable "enable_default_route_table_association" {
  description = "Whether resource attachments are automatically associated with the default association route table"
  type        = bool
  default     = true
}

variable "enable_default_route_table_propagation" {
  description = "Whether resource attachments automatically propagate routes to the default propagation route table"
  type        = bool
  default     = true
}

variable "description" {
  description = "Description of the EC2 Transit Gateway"
  type        = string
  default     = null
}

variable "enable_dns_support" {
  description = "Should be true to enable DNS support in the TGW"
  type        = bool
  default     = true
}

variable "enable_vpn_ecmp_support" {
  description = "Whether VPN Equal Cost Multipath Protocol support is enabled"
  type        = bool
  default     = true
}

# VPC attachments
variable "vpc_attachments" {
  description = "Maps of maps of VPC details to attach to TGW. Type 'any' to disable type validation by Terraform."
  type        = any
  default     = {}
}

# TGW Route Table association and propagation
variable "transit_gateway_route_table_id" {
  description = "Identifier of EC2 Transit Gateway Route Table to use with the Target Gateway when reusing it between multiple TGWs"
  type        = string
  default     = null
}

# Tags
variable "tags" {
  description = "A map of tags to add to all resources"
  type        = map(string)
  default     = {}
}

variable "tgw_tags" {
  description = "Additional tags for the TGW"
  type        = map(string)
  default     = {}
}

variable "tgw_route_table_tags" {
  description = "Additional tags for the TGW route table"
  type        = map(string)
  default     = {}
}

variable "tgw_default_route_table_tags" {
  description = "Additional tags for the Default TGW route table"
  type        = map(string)
  default     = {}
}

variable "tgw_vpc_attachment_tags" {
  description = "Additional tags for VPC attachments"
  type        = map(string)
  default     = {}
}

# TGW resource sharing
variable "share_tgw" {
  description = "Whether to share your transit gateway with other accounts"
  type        = bool
  default     = true
}

variable "ram_name" {
  description = "The name of the resource share of TGW"
  type        = string
  default     = ""
}

variable "ram_allow_external_principals" {
  description = "Indicates whether principals outside your organization can be associated with a resource share."
  type        = bool
  default     = false
}

variable "ram_tags" {
  description = "Additional tags for the RAM"
  type        = map(string)
  default     = {}
}

variable "ram_principals" {
  description = "A list of principals to share TGW with. Possible values are an AWS account ID, an AWS Organizations Organization ARN, or an AWS Organizations Organization Unit ARN"
  type        = list(string)
  default     = []
}

variable "ram_resource_share_arn" {
  description = "ARN of RAM resource share"
  type        = string
  default     = ""
}