terraform-aws-eks/variables.tf

variable "create" {
  description = "Controls if EKS resources should be created (affects nearly all resources)"
  type        = bool
  default     = true
}

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

variable "prefix_separator" {
  description = "The separator to use between the prefix and the generated timestamp for resource names"
  type        = string
  default     = "-"
}

################################################################################
# Cluster
################################################################################

variable "cluster_name" {
  description = "Name of the EKS cluster"
  type        = string
  default     = ""
}

variable "cluster_version" {
  description = "Kubernetes `<major>.<minor>` version to use for the EKS cluster (i.e.: `1.24`)"
  type        = string
  default     = null
}

variable "cluster_enabled_log_types" {
  description = "A list of the desired control plane logs to enable. For more information, see Amazon EKS Control Plane Logging documentation (https://docs.aws.amazon.com/eks/latest/userguide/control-plane-logs.html)"
  type        = list(string)
  default     = ["audit", "api", "authenticator"]
}

variable "cluster_additional_security_group_ids" {
  description = "List of additional, externally created security group IDs to attach to the cluster control plane"
  type        = list(string)
  default     = []
}

variable "control_plane_subnet_ids" {
  description = "A list of subnet IDs where the EKS cluster control plane (ENIs) will be provisioned. Used for expanding the pool of subnets used by nodes/node groups without replacing the EKS control plane"
  type        = list(string)
  default     = []
}

variable "subnet_ids" {
  description = "A list of subnet IDs where the nodes/node groups will be provisioned. If `control_plane_subnet_ids` is not provided, the EKS cluster control plane (ENIs) will be provisioned in these subnets"
  type        = list(string)
  default     = []
}

variable "cluster_endpoint_private_access" {
  description = "Indicates whether or not the Amazon EKS private API server endpoint is enabled"
  type        = bool
  default     = true
}

variable "cluster_endpoint_public_access" {
  description = "Indicates whether or not the Amazon EKS public API server endpoint is enabled"
  type        = bool
  default     = false
}

variable "cluster_endpoint_public_access_cidrs" {
  description = "List of CIDR blocks which can access the Amazon EKS public API server endpoint"
  type        = list(string)
  default     = ["0.0.0.0/0"]
}

variable "cluster_ip_family" {
  description = "The IP family used to assign Kubernetes pod and service addresses. Valid values are `ipv4` (default) and `ipv6`. You can only specify an IP family when you create a cluster, changing this value will force a new cluster to be created"
  type        = string
  default     = null
}

variable "cluster_service_ipv4_cidr" {
  description = "The CIDR block to assign Kubernetes service IP addresses from. If you don't specify a block, Kubernetes assigns addresses from either the 10.100.0.0/16 or 172.20.0.0/16 CIDR blocks"
  type        = string
  default     = null
}

variable "cluster_service_ipv6_cidr" {
  description = "The CIDR block to assign Kubernetes pod and service IP addresses from if `ipv6` was specified when the cluster was created. Kubernetes assigns service addresses from the unique local address range (fc00::/7) because you can't specify a custom IPv6 CIDR block when you create the cluster"
  type        = string
  default     = null
}

variable "outpost_config" {
  description = "Configuration for the AWS Outpost to provision the cluster on"
  type        = any
  default     = {}
}

variable "cluster_encryption_config" {
  description = "Configuration block with encryption configuration for the cluster"
  type        = any
  default = {
    resources = ["secrets"]
  }
}

variable "attach_cluster_encryption_policy" {
  description = "Indicates whether or not to attach an additional policy for the cluster IAM role to utilize the encryption key provided"
  type        = bool
  default     = true
}

variable "cluster_tags" {
  description = "A map of additional tags to add to the cluster"
  type        = map(string)
  default     = {}
}

variable "create_cluster_primary_security_group_tags" {
  description = "Indicates whether or not to tag the cluster's primary security group. This security group is created by the EKS service, not the module, and therefore tagging is handled after cluster creation"
  type        = bool
  default     = true
}

variable "cluster_timeouts" {
  description = "Create, update, and delete timeout configurations for the cluster"
  type        = map(string)
  default     = {}
}

################################################################################
# KMS Key
################################################################################

variable "create_kms_key" {
  description = "Controls if a KMS key for cluster encryption should be created"
  type        = bool
  default     = true
}

variable "kms_key_description" {
  description = "The description of the key as viewed in AWS console"
  type        = string
  default     = null
}

variable "kms_key_deletion_window_in_days" {
  description = "The waiting period, specified in number of days. After the waiting period ends, AWS KMS deletes the KMS key. If you specify a value, it must be between `7` and `30`, inclusive. If you do not specify a value, it defaults to `30`"
  type        = number
  default     = null
}

variable "enable_kms_key_rotation" {
  description = "Specifies whether key rotation is enabled. Defaults to `true`"
  type        = bool
  default     = true
}

variable "kms_key_enable_default_policy" {
  description = "Specifies whether to enable the default key policy. Defaults to `false`"
  type        = bool
  default     = false
}

variable "kms_key_owners" {
  description = "A list of IAM ARNs for those who will have full key permissions (`kms:*`)"
  type        = list(string)
  default     = []
}

variable "kms_key_administrators" {
  description = "A list of IAM ARNs for [key administrators](https://docs.aws.amazon.com/kms/latest/developerguide/key-policy-default.html#key-policy-default-allow-administrators). If no value is provided, the current caller identity is used to ensure at least one key admin is available"
  type        = list(string)
  default     = []
}

variable "kms_key_users" {
  description = "A list of IAM ARNs for [key users](https://docs.aws.amazon.com/kms/latest/developerguide/key-policy-default.html#key-policy-default-allow-users)"
  type        = list(string)
  default     = []
}

variable "kms_key_service_users" {
  description = "A list of IAM ARNs for [key service users](https://docs.aws.amazon.com/kms/latest/developerguide/key-policy-default.html#key-policy-service-integration)"
  type        = list(string)
  default     = []
}

variable "kms_key_source_policy_documents" {
  description = "List of IAM policy documents that are merged together into the exported document. Statements must have unique `sid`s"
  type        = list(string)
  default     = []
}

variable "kms_key_override_policy_documents" {
  description = "List of IAM policy documents that are merged together into the exported document. In merging, statements with non-blank `sid`s will override statements with the same `sid`"
  type        = list(string)
  default     = []
}

variable "kms_key_aliases" {
  description = "A list of aliases to create. Note - due to the use of `toset()`, values must be static strings and not computed values"
  type        = list(string)
  default     = []
}

################################################################################
# CloudWatch Log Group
################################################################################

variable "create_cloudwatch_log_group" {
  description = "Determines whether a log group is created by this module for the cluster logs. If not, AWS will automatically create one if logging is enabled"
  type        = bool
  default     = true
}

variable "cloudwatch_log_group_retention_in_days" {
  description = "Number of days to retain log events. Default retention - 90 days"
  type        = number
  default     = 90
}

variable "cloudwatch_log_group_kms_key_id" {
  description = "If a KMS Key ARN is set, this key will be used to encrypt the corresponding log group. Please be sure that the KMS Key has an appropriate key policy (https://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/encrypt-log-data-kms.html)"
  type        = string
  default     = null
}

################################################################################
# Cluster Security Group
################################################################################

variable "create_cluster_security_group" {
  description = "Determines if a security group is created for the cluster. Note: the EKS service creates a primary security group for the cluster by default"
  type        = bool
  default     = true
}

variable "cluster_security_group_id" {
  description = "Existing security group ID to be attached to the cluster"
  type        = string
  default     = ""
}

variable "vpc_id" {
  description = "ID of the VPC where the cluster security group will be provisioned"
  type        = string
  default     = null
}

variable "cluster_security_group_name" {
  description = "Name to use on cluster security group created"
  type        = string
  default     = null
}

variable "cluster_security_group_use_name_prefix" {
  description = "Determines whether cluster security group name (`cluster_security_group_name`) is used as a prefix"
  type        = bool
  default     = true
}

variable "cluster_security_group_description" {
  description = "Description of the cluster security group created"
  type        = string
  default     = "EKS cluster security group"
}

variable "cluster_security_group_additional_rules" {
  description = "List of additional security group rules to add to the cluster security group created. Set `source_node_security_group = true` inside rules to set the `node_security_group` as source"
  type        = any
  default     = {}
}

variable "cluster_security_group_tags" {
  description = "A map of additional tags to add to the cluster security group created"
  type        = map(string)
  default     = {}
}

################################################################################
# EKS IPV6 CNI Policy
################################################################################

variable "create_cni_ipv6_iam_policy" {
  description = "Determines whether to create an [`AmazonEKS_CNI_IPv6_Policy`](https://docs.aws.amazon.com/eks/latest/userguide/cni-iam-role.html#cni-iam-role-create-ipv6-policy)"
  type        = bool
  default     = false
}

################################################################################
# Node Security Group
################################################################################

variable "create_node_security_group" {
  description = "Determines whether to create a security group for the node groups or use the existing `node_security_group_id`"
  type        = bool
  default     = true
}

variable "node_security_group_id" {
  description = "ID of an existing security group to attach to the node groups created"
  type        = string
  default     = ""
}

variable "node_security_group_name" {
  description = "Name to use on node security group created"
  type        = string
  default     = null
}

variable "node_security_group_use_name_prefix" {
  description = "Determines whether node security group name (`node_security_group_name`) is used as a prefix"
  type        = bool
  default     = true
}

variable "node_security_group_description" {
  description = "Description of the node security group created"
  type        = string
  default     = "EKS node shared security group"
}

variable "node_security_group_additional_rules" {
  description = "List of additional security group rules to add to the node security group created. Set `source_cluster_security_group = true` inside rules to set the `cluster_security_group` as source"
  type        = any
  default     = {}
}

variable "node_security_group_enable_recommended_rules" {
  description = "Determines whether to enable recommended security group rules for the node security group created. This includes node-to-node TCP ingress on ephemeral ports and allows all egress traffic"
  type        = bool
  default     = true
}

variable "node_security_group_tags" {
  description = "A map of additional tags to add to the node security group created"
  type        = map(string)
  default     = {}
}

################################################################################
# IRSA
################################################################################

variable "enable_irsa" {
  description = "Determines whether to create an OpenID Connect Provider for EKS to enable IRSA"
  type        = bool
  default     = true
}

variable "openid_connect_audiences" {
  description = "List of OpenID Connect audience client IDs to add to the IRSA provider"
  type        = list(string)
  default     = []
}

variable "custom_oidc_thumbprints" {
  description = "Additional list of server certificate thumbprints for the OpenID Connect (OIDC) identity provider's server certificate(s)"
  type        = list(string)
  default     = []
}

################################################################################
# Cluster IAM Role
################################################################################

variable "create_iam_role" {
  description = "Determines whether a an IAM role is created or to use an existing IAM role"
  type        = bool
  default     = true
}

variable "iam_role_arn" {
  description = "Existing IAM role ARN for the cluster. Required if `create_iam_role` is set to `false`"
  type        = string
  default     = null
}

variable "iam_role_name" {
  description = "Name to use on IAM role created"
  type        = string
  default     = null
}

variable "iam_role_use_name_prefix" {
  description = "Determines whether the IAM role name (`iam_role_name`) is used as a prefix"
  type        = bool
  default     = true
}

variable "iam_role_path" {
  description = "Cluster IAM role path"
  type        = string
  default     = null
}

variable "iam_role_description" {
  description = "Description of the role"
  type        = string
  default     = null
}

variable "iam_role_permissions_boundary" {
  description = "ARN of the policy that is used to set the permissions boundary for the IAM role"
  type        = string
  default     = null
}

variable "iam_role_additional_policies" {
  description = "Additional policies to be added to the IAM role"
  type        = map(string)
  default     = {}
}

# TODO - hopefully this can be removed once the AWS endpoint is named properly in China
# https://github.com/terraform-aws-modules/terraform-aws-eks/issues/1904
variable "cluster_iam_role_dns_suffix" {
  description = "Base DNS domain name for the current partition (e.g., amazonaws.com in AWS Commercial, amazonaws.com.cn in AWS China)"
  type        = string
  default     = null
}

variable "iam_role_tags" {
  description = "A map of additional tags to add to the IAM role created"
  type        = map(string)
  default     = {}
}

variable "cluster_encryption_policy_use_name_prefix" {
  description = "Determines whether cluster encryption policy name (`cluster_encryption_policy_name`) is used as a prefix"
  type        = bool
  default     = true
}

variable "cluster_encryption_policy_name" {
  description = "Name to use on cluster encryption policy created"
  type        = string
  default     = null
}

variable "cluster_encryption_policy_description" {
  description = "Description of the cluster encryption policy created"
  type        = string
  default     = "Cluster encryption policy to allow cluster role to utilize CMK provided"
}

variable "cluster_encryption_policy_path" {
  description = "Cluster encryption policy path"
  type        = string
  default     = null
}

variable "cluster_encryption_policy_tags" {
  description = "A map of additional tags to add to the cluster encryption policy created"
  type        = map(string)
  default     = {}
}

################################################################################
# EKS Addons
################################################################################

variable "cluster_addons" {
  description = "Map of cluster addon configurations to enable for the cluster. Addon name can be the map keys or set with `name`"
  type        = any
  default     = {}
}

variable "cluster_addons_timeouts" {
  description = "Create, update, and delete timeout configurations for the cluster addons"
  type        = map(string)
  default     = {}
}

################################################################################
# EKS Identity Provider
################################################################################

variable "cluster_identity_providers" {
  description = "Map of cluster identity provider configurations to enable for the cluster. Note - this is different/separate from IRSA"
  type        = any
  default     = {}
}

################################################################################
# Fargate
################################################################################

variable "fargate_profiles" {
  description = "Map of Fargate Profile definitions to create"
  type        = any
  default     = {}
}

variable "fargate_profile_defaults" {
  description = "Map of Fargate Profile default configurations"
  type        = any
  default     = {}
}

################################################################################
# Self Managed Node Group
################################################################################

variable "self_managed_node_groups" {
  description = "Map of self-managed node group definitions to create"
  type        = any
  default     = {}
}

variable "self_managed_node_group_defaults" {
  description = "Map of self-managed node group default configurations"
  type        = any
  default     = {}
}

################################################################################
# EKS Managed Node Group
################################################################################

variable "eks_managed_node_groups" {
  description = "Map of EKS managed node group definitions to create"
  type        = any
  default     = {}
}

variable "eks_managed_node_group_defaults" {
  description = "Map of EKS managed node group default configurations"
  type        = any
  default     = {}
}

variable "putin_khuylo" {
  description = "Do you agree that Putin doesn't respect Ukrainian sovereignty and territorial integrity? More info: https://en.wikipedia.org/wiki/Putin_khuylo!"
  type        = bool
  default     = true
}

################################################################################
# aws-auth configmap
################################################################################

variable "manage_aws_auth_configmap" {
  description = "Determines whether to manage the aws-auth configmap"
  type        = bool
  default     = false
}

variable "create_aws_auth_configmap" {
  description = "Determines whether to create the aws-auth configmap. NOTE - this is only intended for scenarios where the configmap does not exist (i.e. - when using only self-managed node groups). Most users should use `manage_aws_auth_configmap`"
  type        = bool
  default     = false
}

variable "aws_auth_node_iam_role_arns_non_windows" {
  description = "List of non-Windows based node IAM role ARNs to add to the aws-auth configmap"
  type        = list(string)
  default     = []
}

variable "aws_auth_node_iam_role_arns_windows" {
  description = "List of Windows based node IAM role ARNs to add to the aws-auth configmap"
  type        = list(string)
  default     = []
}

variable "aws_auth_fargate_profile_pod_execution_role_arns" {
  description = "List of Fargate profile pod execution role ARNs to add to the aws-auth configmap"
  type        = list(string)
  default     = []
}

variable "aws_auth_roles" {
  description = "List of role maps to add to the aws-auth configmap"
  type        = list(any)
  default     = []
}

variable "aws_auth_users" {
  description = "List of user maps to add to the aws-auth configmap"
  type        = list(any)
  default     = []
}

variable "aws_auth_accounts" {
  description = "List of account maps to add to the aws-auth configmap"
  type        = list(any)
  default     = []
}