variables.tf

/**
 * Copyright 2019 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

variable "project_id" {
  description = "The ID of the project where this VPC will be created"
  type        = string
}

variable "network_name" {
  description = "The name of the network being created"
  type        = string
}

variable "routing_mode" {
  type        = string
  default     = "GLOBAL"
  description = "The network routing mode (default 'GLOBAL')"
}

variable "shared_vpc_host" {
  type        = bool
  description = "Makes this project a Shared VPC host if 'true' (default 'false')"
  default     = false
}

variable "subnets" {
  type = list(object({
    subnet_name                      = string
    subnet_ip                        = string
    subnet_region                    = string
    subnet_private_access            = optional(string)
    subnet_private_ipv6_access       = optional(string)
    subnet_flow_logs                 = optional(string)
    subnet_flow_logs_interval        = optional(string)
    subnet_flow_logs_sampling        = optional(string)
    subnet_flow_logs_metadata        = optional(string)
    subnet_flow_logs_filter          = optional(string)
    subnet_flow_logs_metadata_fields = optional(list(string))
    description                      = optional(string)
    purpose                          = optional(string)
    role                             = optional(string)
    stack_type                       = optional(string)
    ipv6_access_type                 = optional(string)
  }))
  description = "The list of subnets being created"
}

variable "secondary_ranges" {
  type        = map(list(object({ range_name = string, ip_cidr_range = string })))
  description = "Secondary ranges that will be used in some of the subnets"
  default     = {}
}

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

variable "firewall_rules" {
  type = list(object({
    name                    = string
    description             = optional(string, null)
    direction               = optional(string, "INGRESS")
    priority                = optional(number, null)
    ranges                  = optional(list(string), [])
    source_tags             = optional(list(string))
    source_service_accounts = optional(list(string))
    target_tags             = optional(list(string))
    target_service_accounts = optional(list(string))

    allow = optional(list(object({
      protocol = string
      ports    = optional(list(string))
    })), [])
    deny = optional(list(object({
      protocol = string
      ports    = optional(list(string))
    })), [])
    log_config = optional(object({
      metadata = string
    }))
  }))
  description = "This is DEPRICATED and available for backward compatiblity. Use ingress_rules and egress_rules variables. List of firewall rules"
  default     = []
}

variable "delete_default_internet_gateway_routes" {
  type        = bool
  description = "If set, ensure that all routes within the network specified whose names begin with 'default-route' and with a next hop of 'default-internet-gateway' are deleted"
  default     = false
}


variable "description" {
  type        = string
  description = "An optional description of this resource. The resource must be recreated to modify this field."
  default     = ""
}

variable "auto_create_subnetworks" {
  type        = bool
  description = "When set to true, the network is created in 'auto subnet mode' and it will create a subnet for each region automatically across the 10.128.0.0/9 address range. When set to false, the network is created in 'custom subnet mode' so the user can explicitly connect subnetwork resources."
  default     = false
}

variable "mtu" {
  type        = number
  description = "The network MTU (If set to 0, meaning MTU is unset - defaults to '1460'). Recommended values: 1460 (default for historic reasons), 1500 (Internet default), or 8896 (for Jumbo packets). Allowed are all values in the range 1300 to 8896, inclusively."
  default     = 0
}

variable "ingress_rules" {
  description = "List of ingress rules. This will be ignored if variable 'rules' is non-empty"
  default     = []
  type = list(object({
    name                    = string
    description             = optional(string, null)
    priority                = optional(number, null)
    destination_ranges      = optional(list(string), [])
    source_ranges           = optional(list(string), [])
    source_tags             = optional(list(string))
    source_service_accounts = optional(list(string))
    target_tags             = optional(list(string))
    target_service_accounts = optional(list(string))

    allow = optional(list(object({
      protocol = string
      ports    = optional(list(string))
    })), [])
    deny = optional(list(object({
      protocol = string
      ports    = optional(list(string))
    })), [])
    log_config = optional(object({
      metadata = string
    }))
  }))
}

variable "egress_rules" {
  description = "List of egress rules. This will be ignored if variable 'rules' is non-empty"
  default     = []
  type = list(object({
    name                    = string
    description             = optional(string, null)
    priority                = optional(number, null)
    destination_ranges      = optional(list(string), [])
    source_ranges           = optional(list(string), [])
    source_tags             = optional(list(string))
    source_service_accounts = optional(list(string))
    target_tags             = optional(list(string))
    target_service_accounts = optional(list(string))

    allow = optional(list(object({
      protocol = string
      ports    = optional(list(string))
    })), [])
    deny = optional(list(object({
      protocol = string
      ports    = optional(list(string))
    })), [])
    log_config = optional(object({
      metadata = string
    }))
  }))
}

variable "enable_ipv6_ula" {
  type        = bool
  description = "Enabled IPv6 ULA, this is a permenant change and cannot be undone! (default 'false')"
  default     = false
}

variable "internal_ipv6_range" {
  type        = string
  default     = null
  description = "When enabling IPv6 ULA, optionally, specify a /48 from fd20::/20 (default null)"
}

variable "network_firewall_policy_enforcement_order" {
  type        = string
  default     = null
  description = "Set the order that Firewall Rules and Firewall Policies are evaluated. Valid values are `BEFORE_CLASSIC_FIREWALL` and `AFTER_CLASSIC_FIREWALL`. (default null or equivalent to `AFTER_CLASSIC_FIREWALL`)"
}