variables.tf

variable "owner" {
  description = "A short string used to tag resources to indicate ownership by a responsible entity.  Defaults to the string 'simple-eks'.  Must contain only alphanumerics, periods, and dashes."
  type = string
  default = "simple-eks"
}

variable "unique_name_prefix" {
  description = "A prefix to name resources generated by this config (defaults to 'simple')."
  type = string
  default = "simple"
}

variable "unique_name_suffix" {
  description = "A suffix to name resources generated by this config (defaults to the empty string).  If left empty, an 8-character random identifier will be generated and used."
  type = string
  default = ""
}

variable "eks_ec2_ssh_keypair" {
  description = "An AWS EC2 SSH keypair name to associate with EKS EC2 nodegroup instances."
  type = string
  default = ""
}

variable "admin_ip_cidr" {
  description = "The IPv4 CIDR to allow admin access (SSH, cluster API) from.  Defaults to the external IP of the system running Terraform as returned by Akamai's whatismyip service.  To allow public access (e.g. if cluster will be used by someone else with an unknown IP), set this to 0.0.0.0/0."
  type = string
  default = ""
}

variable "aws_region" {
  type = string
  default = "us-east-1"
}

variable "create_subnets_num" {
  description = "If public or private subnets are created, how many to create (defaults to 3, must be between 1 and 4).  If subnets are created, they are created in the first create_subnets_num AZs in the list of available AZs."
  type = number
  default = 3
  validation {
    condition = var.create_subnets_num > 0 && var.create_subnets_num <= 4
    error_message = "You must specify a number of subnets to create between 1 and 4."
  }
}

variable "aws_vpc_id" {
  description = "ID of a pre-created VPC (defaults to the empty string).  If left empty, one will be created.  If you specify an existing VPC here, you may need to change the EKS service CIDR to avoid subnet overlap."
  type = string
  default = ""
}

variable "aws_vpc_cidr" {
  description = "IPv4 CIDR for the VPC (defaults to 10.10.0.0/16).  Ignored if the VPC is pre-created.  If you specify a different CIDR than the default here, you may need to change the EKS service CIDR to avoid subnet overlap."
  type = string
  default = "10.100.0.0/16"
}

variable "eks_subnets_public" {
  description = "A list of pre-created public subnet IDs with the necessary networking to allow the admin IP access to the cluster (defaults to an empty list).  If left empty, the number of subnets specified in create_subnets_num will be created.  If set, public subnets, gateways and route tables will NOT be created."
  type = list(string)
  default = []
}

variable "eks_subnets_public_tags" {
  type = map(string)
  default = {}
}

variable "eks_subnets_private" {
  description = "A list of pre-created private subnet IDs with the necessary networking to allow the admin IP access to the cluster (defaults to an empty list).  If left empty, the number of subnets specified in create_subnets_num will be created.  If set, private subnets, gateways and route tables will NOT be created."
  type = list(string)
  default = []
}

variable "eks_subnets_private_tags" {
  type = map(string)
  default = {}
}

variable "eks_k8s_version" {
  type = string
  default = "1.30"
}

variable "eks_ec2_nodegroup_size" {
  type = number
  default = 3
}

variable "eks_ec2_nodegroup_instancetype" {
  type = string
  default = "m5.large"
}

variable "eks_nodegroup_public" {
  description = "Whether the node group should be created in public subnets (defaults to false).  If false, it will be created in private subnets."
  type = bool
  default = false
}

variable "eks_service_cidr" {
  description = "IPv4 service CIDR for the EKS cluster (defaults to 10.10.0.0/16).  If you specify creation in an existing VPC or a different CIDR for a VPC created by this config, you may need to change this."
  type = string
  default = "10.10.0.0/16"
}

variable "eks_additional_admin_arns" {
  description = "A list of additional role or user ARNs to create EKS access entries for (defaults to an empty list; the identity used by the Terraform runner will be added by AWS automatically)."
  type = list(string)
  default = []
}

variable "create_debug_instance" {
  description = "Whether to create an instance in a public subnet -- e.g. for debugging or as a jump host to private-subnet worker nodesm (defaults to false)."
  type = bool
  default = false
}

variable "eks_debug_instance_type" {
  type = string
  default = "t3.small"
}

variable "eks_debug_instance_ami" {
  description = "The AMI to use for the debug instance, if any (defaults to the empty string).  If left empty, the latest x86_64 Amazon Linux 2023 AMI is used."
  type = string
  default = ""
}

variable "eks_debug_sg" {
  description = "ID of a pre-created security group with the necessary rules to allow the admin IP access to the debug instance, if one exists.  If left empty, one will be created if a debug instance is to be created."
  type = string
  default = ""
}

variable "eks_debug_sg_additional_ports" {
  description = "List of TCP ports in addition to port 22 (SSH) to allow in the admin security group (defaults to 80 and 443).  If a pre-created debug security group is specified, this is ignored."
  type = list(number)
  default = [ 80, 443 ]
}