node groups.tf
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https://github.com/terraform-aws-modules/terraform-aws-eks/blob/master/node_groups.tf
module fargate_profile module eks_managed_node_group
Official example[edit]
locals { metadata_options = { http_endpoint = "enabled" http_tokens = "required" http_put_response_hop_limit = 2 } # EKS managed node group default_update_config = { max_unavailable_percentage = 33 } # Self-managed node group default_instance_refresh = { strategy = "Rolling" preferences = { min_healthy_percentage = 66 } } }
# This sleep resource is used to provide a timed gap between the cluster creation and the downstream dependencies
# that consume the outputs from here. Any of the values that are used as triggers can be used in dependencies
# to ensure that the downstream resources are created after both the cluster is ready and the sleep time has passed.
# This was primarily added to give addons that need to be configured BEFORE data plane compute resources
# enough time to create and configure themselves before the data plane compute resources are created.
resource "time_sleep" "this" {
count = var.create ? 1 : 0
create_duration = var.dataplane_wait_duration
triggers = {
cluster_name = aws_eks_cluster.this[0].name
cluster_endpoint = aws_eks_cluster.this[0].endpoint
cluster_version = aws_eks_cluster.this[0].version
cluster_certificate_authority_data = aws_eks_cluster.this[0].certificate_authority[0].data
}
}
################################################################################
# EKS IPV6 CNI Policy
# TODO - hopefully AWS releases a managed policy which can replace this
# https://docs.aws.amazon.com/eks/latest/userguide/cni-iam-role.html#cni-iam-role-create-ipv6-policy
################################################################################
data "aws_iam_policy_document" "cni_ipv6_policy" {
count = var.create && var.create_cni_ipv6_iam_policy ? 1 : 0
statement {
sid = "AssignDescribe"
actions = [
"ec2:AssignIpv6Addresses",
"ec2:DescribeInstances",
"ec2:DescribeTags",
"ec2:DescribeNetworkInterfaces",
"ec2:DescribeInstanceTypes"
]
resources = ["*"]
}
statement {
sid = "CreateTags"
actions = ["ec2:CreateTags"]
resources = ["arn:${data.aws_partition.current.partition}:ec2:*:*:network-interface/*"]
}
}
# Note - we are keeping this to a minimum in hopes that its soon replaced with an AWS managed policy like `AmazonEKS_CNI_Policy`
resource "aws_iam_policy" "cni_ipv6_policy" {
count = var.create && var.create_cni_ipv6_iam_policy ? 1 : 0
# Will cause conflicts if trying to create on multiple clusters but necessary to reference by exact name in sub-modules
name = "AmazonEKS_CNI_IPv6_Policy"
description = "IAM policy for EKS CNI to assign IPV6 addresses"
policy = data.aws_iam_policy_document.cni_ipv6_policy[0].json
tags = var.tags
}
################################################################################
# Node Security Group
# Defaults follow https://docs.aws.amazon.com/eks/latest/userguide/sec-group-reqs.html
# Plus NTP/HTTPS (otherwise nodes fail to launch)
################################################################################
locals {
node_sg_name = coalesce(var.node_security_group_name, "${var.cluster_name}-node")
create_node_sg = var.create && var.create_node_security_group
node_security_group_id = local.create_node_sg ? aws_security_group.node[0].id : var.node_security_group_id
node_security_group_rules = {
ingress_cluster_443 = {
description = "Cluster API to node groups"
protocol = "tcp"
from_port = 443
to_port = 443
type = "ingress"
source_cluster_security_group = true
}
ingress_cluster_kubelet = {
description = "Cluster API to node kubelets"
protocol = "tcp"
from_port = 10250
to_port = 10250
type = "ingress"
source_cluster_security_group = true
}
ingress_self_coredns_tcp = {
description = "Node to node CoreDNS"
protocol = "tcp"
from_port = 53
to_port = 53
type = "ingress"
self = true
}
ingress_self_coredns_udp = {
description = "Node to node CoreDNS UDP"
protocol = "udp"
from_port = 53
to_port = 53
type = "ingress"
self = true
}
}
node_security_group_recommended_rules = { for k, v in {
ingress_nodes_ephemeral = {
description = "Node to node ingress on ephemeral ports"
protocol = "tcp"
from_port = 1025
to_port = 65535
type = "ingress"
self = true
}
# metrics-server
ingress_cluster_4443_webhook = {
description = "Cluster API to node 4443/tcp webhook"
protocol = "tcp"
from_port = 4443
to_port = 4443
type = "ingress"
source_cluster_security_group = true
}
# prometheus-adapter
ingress_cluster_6443_webhook = {
description = "Cluster API to node 6443/tcp webhook"
protocol = "tcp"
from_port = 6443
to_port = 6443
type = "ingress"
source_cluster_security_group = true
}
# Karpenter
ingress_cluster_8443_webhook = {
description = "Cluster API to node 8443/tcp webhook"
protocol = "tcp"
from_port = 8443
to_port = 8443
type = "ingress"
source_cluster_security_group = true
}
# ALB controller, NGINX
ingress_cluster_9443_webhook = {
description = "Cluster API to node 9443/tcp webhook"
protocol = "tcp"
from_port = 9443
to_port = 9443
type = "ingress"
source_cluster_security_group = true
}
egress_all = {
description = "Allow all egress"
protocol = "-1"
from_port = 0
to_port = 0
type = "egress"
cidr_blocks = ["0.0.0.0/0"]
ipv6_cidr_blocks = var.cluster_ip_family == "ipv6" ? ["::/0"] : null
}
} : k => v if var.node_security_group_enable_recommended_rules }
}
resource "aws_security_group" "node" {
count = local.create_node_sg ? 1 : 0
name = var.node_security_group_use_name_prefix ? null : local.node_sg_name
name_prefix = var.node_security_group_use_name_prefix ? "${local.node_sg_name}${var.prefix_separator}" : null
description = var.node_security_group_description
vpc_id = var.vpc_id
tags = merge(
var.tags,
{
"Name" = local.node_sg_name
"kubernetes.io/cluster/${var.cluster_name}" = "owned"
},
var.node_security_group_tags
)
lifecycle {
create_before_destroy = true
}
}
resource "aws_security_group_rule" "node" {
for_each = { for k, v in merge(
local.node_security_group_rules,
local.node_security_group_recommended_rules,
var.node_security_group_additional_rules,
) : k => v if local.create_node_sg }
# Required
security_group_id = aws_security_group.node[0].id
protocol = each.value.protocol
from_port = each.value.from_port
to_port = each.value.to_port
type = each.value.type
# Optional
description = lookup(each.value, "description", null)
cidr_blocks = lookup(each.value, "cidr_blocks", null)
ipv6_cidr_blocks = lookup(each.value, "ipv6_cidr_blocks", null)
prefix_list_ids = lookup(each.value, "prefix_list_ids", [])
self = lookup(each.value, "self", null)
source_security_group_id = try(each.value.source_cluster_security_group, false) ? local.cluster_security_group_id : lookup(each.value, "source_security_group_id", null)
}
################################################################################
# Fargate Profile
################################################################################
module "fargate_profile" {
source = "./modules/fargate-profile"
for_each = { for k, v in var.fargate_profiles : k => v if var.create && !local.create_outposts_local_cluster }
create = try(each.value.create, true)
# Fargate Profile
cluster_name = time_sleep.this[0].triggers["cluster_name"]
cluster_ip_family = var.cluster_ip_family
name = try(each.value.name, each.key)
subnet_ids = try(each.value.subnet_ids, var.fargate_profile_defaults.subnet_ids, var.subnet_ids)
selectors = try(each.value.selectors, var.fargate_profile_defaults.selectors, [])
timeouts = try(each.value.timeouts, var.fargate_profile_defaults.timeouts, {})
# IAM role
create_iam_role = try(each.value.create_iam_role, var.fargate_profile_defaults.create_iam_role, true)
iam_role_arn = try(each.value.iam_role_arn, var.fargate_profile_defaults.iam_role_arn, null)
iam_role_name = try(each.value.iam_role_name, var.fargate_profile_defaults.iam_role_name, null)
iam_role_use_name_prefix = try(each.value.iam_role_use_name_prefix, var.fargate_profile_defaults.iam_role_use_name_prefix, true)
iam_role_path = try(each.value.iam_role_path, var.fargate_profile_defaults.iam_role_path, null)
iam_role_description = try(each.value.iam_role_description, var.fargate_profile_defaults.iam_role_description, "Fargate profile IAM role")
iam_role_permissions_boundary = try(each.value.iam_role_permissions_boundary, var.fargate_profile_defaults.iam_role_permissions_boundary, null)
iam_role_tags = try(each.value.iam_role_tags, var.fargate_profile_defaults.iam_role_tags, {})
iam_role_attach_cni_policy = try(each.value.iam_role_attach_cni_policy, var.fargate_profile_defaults.iam_role_attach_cni_policy, true)
# To better understand why this `lookup()` logic is required, see:
# https://github.com/hashicorp/terraform/issues/31646#issuecomment-1217279031
iam_role_additional_policies = lookup(each.value, "iam_role_additional_policies", lookup(var.fargate_profile_defaults, "iam_role_additional_policies", {}))
tags = merge(var.tags, try(each.value.tags, var.fargate_profile_defaults.tags, {}))
}
################################################################################
# EKS Managed Node Group
################################################################################
module "eks_managed_node_group" {
source = "./modules/eks-managed-node-group"
for_each = { for k, v in var.eks_managed_node_groups : k => v if var.create && !local.create_outposts_local_cluster }
create = try(each.value.create, true)
cluster_name = time_sleep.this[0].triggers["cluster_name"]
cluster_version = try(each.value.cluster_version, var.eks_managed_node_group_defaults.cluster_version, time_sleep.this[0].triggers["cluster_version"])
cluster_ip_family = var.cluster_ip_family
# EKS Managed Node Group
name = try(each.value.name, each.key)
use_name_prefix = try(each.value.use_name_prefix, var.eks_managed_node_group_defaults.use_name_prefix, true)
subnet_ids = try(each.value.subnet_ids, var.eks_managed_node_group_defaults.subnet_ids, var.subnet_ids)
min_size = try(each.value.min_size, var.eks_managed_node_group_defaults.min_size, 1)
max_size = try(each.value.max_size, var.eks_managed_node_group_defaults.max_size, 3)
desired_size = try(each.value.desired_size, var.eks_managed_node_group_defaults.desired_size, 1)
ami_id = try(each.value.ami_id, var.eks_managed_node_group_defaults.ami_id, "")
ami_type = try(each.value.ami_type, var.eks_managed_node_group_defaults.ami_type, null)
ami_release_version = try(each.value.ami_release_version, var.eks_managed_node_group_defaults.ami_release_version, null)
capacity_type = try(each.value.capacity_type, var.eks_managed_node_group_defaults.capacity_type, null)
disk_size = try(each.value.disk_size, var.eks_managed_node_group_defaults.disk_size, null)
force_update_version = try(each.value.force_update_version, var.eks_managed_node_group_defaults.force_update_version, null)
instance_types = try(each.value.instance_types, var.eks_managed_node_group_defaults.instance_types, null)
labels = try(each.value.labels, var.eks_managed_node_group_defaults.labels, null)
remote_access = try(each.value.remote_access, var.eks_managed_node_group_defaults.remote_access, {})
taints = try(each.value.taints, var.eks_managed_node_group_defaults.taints, {})
update_config = try(each.value.update_config, var.eks_managed_node_group_defaults.update_config, local.default_update_config)
timeouts = try(each.value.timeouts, var.eks_managed_node_group_defaults.timeouts, {})
# User data
platform = try(each.value.platform, var.eks_managed_node_group_defaults.platform, "linux")
cluster_endpoint = try(time_sleep.this[0].triggers["cluster_endpoint"], "")
cluster_auth_base64 = try(time_sleep.this[0].triggers["cluster_certificate_authority_data"], "")
cluster_service_ipv4_cidr = var.cluster_service_ipv4_cidr
enable_bootstrap_user_data = try(each.value.enable_bootstrap_user_data, var.eks_managed_node_group_defaults.enable_bootstrap_user_data, false)
pre_bootstrap_user_data = try(each.value.pre_bootstrap_user_data, var.eks_managed_node_group_defaults.pre_bootstrap_user_data, "")
post_bootstrap_user_data = try(each.value.post_bootstrap_user_data, var.eks_managed_node_group_defaults.post_bootstrap_user_data, "")
bootstrap_extra_args = try(each.value.bootstrap_extra_args, var.eks_managed_node_group_defaults.bootstrap_extra_args, "")
user_data_template_path = try(each.value.user_data_template_path, var.eks_managed_node_group_defaults.user_data_template_path, "")
# Launch Template
create_launch_template = try(each.value.create_launch_template, var.eks_managed_node_group_defaults.create_launch_template, true)
use_custom_launch_template = try(each.value.use_custom_launch_template, var.eks_managed_node_group_defaults.use_custom_launch_template, true)
launch_template_id = try(each.value.launch_template_id, var.eks_managed_node_group_defaults.launch_template_id, "")
launch_template_name = try(each.value.launch_template_name, var.eks_managed_node_group_defaults.launch_template_name, each.key)
launch_template_use_name_prefix = try(each.value.launch_template_use_name_prefix, var.eks_managed_node_group_defaults.launch_template_use_name_prefix, true)
launch_template_version = try(each.value.launch_template_version, var.eks_managed_node_group_defaults.launch_template_version, null)
launch_template_default_version = try(each.value.launch_template_default_version, var.eks_managed_node_group_defaults.launch_template_default_version, null)
update_launch_template_default_version = try(each.value.update_launch_template_default_version, var.eks_managed_node_group_defaults.update_launch_template_default_version, true)
launch_template_description = try(each.value.launch_template_description, var.eks_managed_node_group_defaults.launch_template_description, "Custom launch template for ${try(each.value.name, each.key)} EKS managed node group")
launch_template_tags = try(each.value.launch_template_tags, var.eks_managed_node_group_defaults.launch_template_tags, {})
tag_specifications = try(each.value.tag_specifications, var.eks_managed_node_group_defaults.tag_specifications, ["instance", "volume", "network-interface"])
ebs_optimized = try(each.value.ebs_optimized, var.eks_managed_node_group_defaults.ebs_optimized, null)
key_name = try(each.value.key_name, var.eks_managed_node_group_defaults.key_name, null)
disable_api_termination = try(each.value.disable_api_termination, var.eks_managed_node_group_defaults.disable_api_termination, null)
kernel_id = try(each.value.kernel_id, var.eks_managed_node_group_defaults.kernel_id, null)
ram_disk_id = try(each.value.ram_disk_id, var.eks_managed_node_group_defaults.ram_disk_id, null)
block_device_mappings = try(each.value.block_device_mappings, var.eks_managed_node_group_defaults.block_device_mappings, {})
capacity_reservation_specification = try(each.value.capacity_reservation_specification, var.eks_managed_node_group_defaults.capacity_reservation_specification, {})
cpu_options = try(each.value.cpu_options, var.eks_managed_node_group_defaults.cpu_options, {})
credit_specification = try(each.value.credit_specification, var.eks_managed_node_group_defaults.credit_specification, {})
elastic_gpu_specifications = try(each.value.elastic_gpu_specifications, var.eks_managed_node_group_defaults.elastic_gpu_specifications, {})
elastic_inference_accelerator = try(each.value.elastic_inference_accelerator, var.eks_managed_node_group_defaults.elastic_inference_accelerator, {})
enclave_options = try(each.value.enclave_options, var.eks_managed_node_group_defaults.enclave_options, {})
instance_market_options = try(each.value.instance_market_options, var.eks_managed_node_group_defaults.instance_market_options, {})
license_specifications = try(each.value.license_specifications, var.eks_managed_node_group_defaults.license_specifications, {})
metadata_options = try(each.value.metadata_options, var.eks_managed_node_group_defaults.metadata_options, local.metadata_options)
enable_monitoring = try(each.value.enable_monitoring, var.eks_managed_node_group_defaults.enable_monitoring, true)
network_interfaces = try(each.value.network_interfaces, var.eks_managed_node_group_defaults.network_interfaces, [])
placement = try(each.value.placement, var.eks_managed_node_group_defaults.placement, {})
maintenance_options = try(each.value.maintenance_options, var.eks_managed_node_group_defaults.maintenance_options, {})
private_dns_name_options = try(each.value.private_dns_name_options, var.eks_managed_node_group_defaults.private_dns_name_options, {})
# IAM role
create_iam_role = try(each.value.create_iam_role, var.eks_managed_node_group_defaults.create_iam_role, true)
iam_role_arn = try(each.value.iam_role_arn, var.eks_managed_node_group_defaults.iam_role_arn, null)
iam_role_name = try(each.value.iam_role_name, var.eks_managed_node_group_defaults.iam_role_name, null)
iam_role_use_name_prefix = try(each.value.iam_role_use_name_prefix, var.eks_managed_node_group_defaults.iam_role_use_name_prefix, true)
iam_role_path = try(each.value.iam_role_path, var.eks_managed_node_group_defaults.iam_role_path, null)
iam_role_description = try(each.value.iam_role_description, var.eks_managed_node_group_defaults.iam_role_description, "EKS managed node group IAM role")
iam_role_permissions_boundary = try(each.value.iam_role_permissions_boundary, var.eks_managed_node_group_defaults.iam_role_permissions_boundary, null)
iam_role_tags = try(each.value.iam_role_tags, var.eks_managed_node_group_defaults.iam_role_tags, {})
iam_role_attach_cni_policy = try(each.value.iam_role_attach_cni_policy, var.eks_managed_node_group_defaults.iam_role_attach_cni_policy, true)
# To better understand why this `lookup()` logic is required, see:
# https://github.com/hashicorp/terraform/issues/31646#issuecomment-1217279031
iam_role_additional_policies = lookup(each.value, "iam_role_additional_policies", lookup(var.eks_managed_node_group_defaults, "iam_role_additional_policies", {}))
# Security group
vpc_security_group_ids = compact(concat([local.node_security_group_id], try(each.value.vpc_security_group_ids, var.eks_managed_node_group_defaults.vpc_security_group_ids, [])))
cluster_primary_security_group_id = try(each.value.attach_cluster_primary_security_group, var.eks_managed_node_group_defaults.attach_cluster_primary_security_group, false) ? aws_eks_cluster.this[0].vpc_config[0].cluster_security_group_id : null
tags = merge(var.tags, try(each.value.tags, var.eks_managed_node_group_defaults.tags, {}))
}
################################################################################
# Self Managed Node Group
################################################################################
module "self_managed_node_group" {
source = "./modules/self-managed-node-group"
for_each = { for k, v in var.self_managed_node_groups : k => v if var.create }
create = try(each.value.create, true)
cluster_name = time_sleep.this[0].triggers["cluster_name"]
cluster_ip_family = var.cluster_ip_family
# Autoscaling Group
create_autoscaling_group = try(each.value.create_autoscaling_group, var.self_managed_node_group_defaults.create_autoscaling_group, true)
name = try(each.value.name, each.key)
use_name_prefix = try(each.value.use_name_prefix, var.self_managed_node_group_defaults.use_name_prefix, true)
availability_zones = try(each.value.availability_zones, var.self_managed_node_group_defaults.availability_zones, null)
subnet_ids = try(each.value.subnet_ids, var.self_managed_node_group_defaults.subnet_ids, var.subnet_ids)
min_size = try(each.value.min_size, var.self_managed_node_group_defaults.min_size, 0)
max_size = try(each.value.max_size, var.self_managed_node_group_defaults.max_size, 3)
desired_size = try(each.value.desired_size, var.self_managed_node_group_defaults.desired_size, 1)
capacity_rebalance = try(each.value.capacity_rebalance, var.self_managed_node_group_defaults.capacity_rebalance, null)
min_elb_capacity = try(each.value.min_elb_capacity, var.self_managed_node_group_defaults.min_elb_capacity, null)
wait_for_elb_capacity = try(each.value.wait_for_elb_capacity, var.self_managed_node_group_defaults.wait_for_elb_capacity, null)
wait_for_capacity_timeout = try(each.value.wait_for_capacity_timeout, var.self_managed_node_group_defaults.wait_for_capacity_timeout, null)
default_cooldown = try(each.value.default_cooldown, var.self_managed_node_group_defaults.default_cooldown, null)
default_instance_warmup = try(each.value.default_instance_warmup, var.self_managed_node_group_defaults.default_instance_warmup, null)
protect_from_scale_in = try(each.value.protect_from_scale_in, var.self_managed_node_group_defaults.protect_from_scale_in, null)
context = try(each.value.context, var.self_managed_node_group_defaults.context, null)
target_group_arns = try(each.value.target_group_arns, var.self_managed_node_group_defaults.target_group_arns, [])
placement_group = try(each.value.placement_group, var.self_managed_node_group_defaults.placement_group, null)
health_check_type = try(each.value.health_check_type, var.self_managed_node_group_defaults.health_check_type, null)
health_check_grace_period = try(each.value.health_check_grace_period, var.self_managed_node_group_defaults.health_check_grace_period, null)
force_delete = try(each.value.force_delete, var.self_managed_node_group_defaults.force_delete, null)
force_delete_warm_pool = try(each.value.force_delete_warm_pool, var.self_managed_node_group_defaults.force_delete_warm_pool, null)
termination_policies = try(each.value.termination_policies, var.self_managed_node_group_defaults.termination_policies, [])
suspended_processes = try(each.value.suspended_processes, var.self_managed_node_group_defaults.suspended_processes, [])
max_instance_lifetime = try(each.value.max_instance_lifetime, var.self_managed_node_group_defaults.max_instance_lifetime, null)
enabled_metrics = try(each.value.enabled_metrics, var.self_managed_node_group_defaults.enabled_metrics, [])
metrics_granularity = try(each.value.metrics_granularity, var.self_managed_node_group_defaults.metrics_granularity, null)
service_linked_role_arn = try(each.value.service_linked_role_arn, var.self_managed_node_group_defaults.service_linked_role_arn, null)
initial_lifecycle_hooks = try(each.value.initial_lifecycle_hooks, var.self_managed_node_group_defaults.initial_lifecycle_hooks, [])
instance_refresh = try(each.value.instance_refresh, var.self_managed_node_group_defaults.instance_refresh, local.default_instance_refresh)
use_mixed_instances_policy = try(each.value.use_mixed_instances_policy, var.self_managed_node_group_defaults.use_mixed_instances_policy, false)
mixed_instances_policy = try(each.value.mixed_instances_policy, var.self_managed_node_group_defaults.mixed_instances_policy, null)
warm_pool = try(each.value.warm_pool, var.self_managed_node_group_defaults.warm_pool, {})
create_schedule = try(each.value.create_schedule, var.self_managed_node_group_defaults.create_schedule, false)
schedules = try(each.value.schedules, var.self_managed_node_group_defaults.schedules, {})
delete_timeout = try(each.value.delete_timeout, var.self_managed_node_group_defaults.delete_timeout, null)
autoscaling_group_tags = try(each.value.autoscaling_group_tags, var.self_managed_node_group_defaults.autoscaling_group_tags, {})
# User data
platform = try(each.value.platform, var.self_managed_node_group_defaults.platform, "linux")
cluster_endpoint = try(time_sleep.this[0].triggers["cluster_endpoint"], "")
cluster_auth_base64 = try(time_sleep.this[0].triggers["cluster_certificate_authority_data"], "")
pre_bootstrap_user_data = try(each.value.pre_bootstrap_user_data, var.self_managed_node_group_defaults.pre_bootstrap_user_data, "")
post_bootstrap_user_data = try(each.value.post_bootstrap_user_data, var.self_managed_node_group_defaults.post_bootstrap_user_data, "")
bootstrap_extra_args = try(each.value.bootstrap_extra_args, var.self_managed_node_group_defaults.bootstrap_extra_args, "")
user_data_template_path = try(each.value.user_data_template_path, var.self_managed_node_group_defaults.user_data_template_path, "")
# Launch Template
create_launch_template = try(each.value.create_launch_template, var.self_managed_node_group_defaults.create_launch_template, true)
launch_template_id = try(each.value.launch_template_id, var.self_managed_node_group_defaults.launch_template_id, "")
launch_template_name = try(each.value.launch_template_name, var.self_managed_node_group_defaults.launch_template_name, each.key)
launch_template_use_name_prefix = try(each.value.launch_template_use_name_prefix, var.self_managed_node_group_defaults.launch_template_use_name_prefix, true)
launch_template_version = try(each.value.launch_template_version, var.self_managed_node_group_defaults.launch_template_version, null)
launch_template_default_version = try(each.value.launch_template_default_version, var.self_managed_node_group_defaults.launch_template_default_version, null)
update_launch_template_default_version = try(each.value.update_launch_template_default_version, var.self_managed_node_group_defaults.update_launch_template_default_version, true)
launch_template_description = try(each.value.launch_template_description, var.self_managed_node_group_defaults.launch_template_description, "Custom launch template for ${try(each.value.name, each.key)} self managed node group")
launch_template_tags = try(each.value.launch_template_tags, var.self_managed_node_group_defaults.launch_template_tags, {})
tag_specifications = try(each.value.tag_specifications, var.self_managed_node_group_defaults.tag_specifications, ["instance", "volume", "network-interface"])
ebs_optimized = try(each.value.ebs_optimized, var.self_managed_node_group_defaults.ebs_optimized, null)
ami_id = try(each.value.ami_id, var.self_managed_node_group_defaults.ami_id, "")
cluster_version = try(each.value.cluster_version, var.self_managed_node_group_defaults.cluster_version, time_sleep.this[0].triggers["cluster_version"])
instance_type = try(each.value.instance_type, var.self_managed_node_group_defaults.instance_type, "m6i.large")
key_name = try(each.value.key_name, var.self_managed_node_group_defaults.key_name, null)
disable_api_termination = try(each.value.disable_api_termination, var.self_managed_node_group_defaults.disable_api_termination, null)
instance_initiated_shutdown_behavior = try(each.value.instance_initiated_shutdown_behavior, var.self_managed_node_group_defaults.instance_initiated_shutdown_behavior, null)
kernel_id = try(each.value.kernel_id, var.self_managed_node_group_defaults.kernel_id, null)
ram_disk_id = try(each.value.ram_disk_id, var.self_managed_node_group_defaults.ram_disk_id, null)
block_device_mappings = try(each.value.block_device_mappings, var.self_managed_node_group_defaults.block_device_mappings, {})
capacity_reservation_specification = try(each.value.capacity_reservation_specification, var.self_managed_node_group_defaults.capacity_reservation_specification, {})
cpu_options = try(each.value.cpu_options, var.self_managed_node_group_defaults.cpu_options, {})
credit_specification = try(each.value.credit_specification, var.self_managed_node_group_defaults.credit_specification, {})
elastic_gpu_specifications = try(each.value.elastic_gpu_specifications, var.self_managed_node_group_defaults.elastic_gpu_specifications, {})
elastic_inference_accelerator = try(each.value.elastic_inference_accelerator, var.self_managed_node_group_defaults.elastic_inference_accelerator, {})
enclave_options = try(each.value.enclave_options, var.self_managed_node_group_defaults.enclave_options, {})
hibernation_options = try(each.value.hibernation_options, var.self_managed_node_group_defaults.hibernation_options, {})
instance_requirements = try(each.value.instance_requirements, var.self_managed_node_group_defaults.instance_requirements, {})
instance_market_options = try(each.value.instance_market_options, var.self_managed_node_group_defaults.instance_market_options, {})
license_specifications = try(each.value.license_specifications, var.self_managed_node_group_defaults.license_specifications, {})
metadata_options = try(each.value.metadata_options, var.self_managed_node_group_defaults.metadata_options, local.metadata_options)
enable_monitoring = try(each.value.enable_monitoring, var.self_managed_node_group_defaults.enable_monitoring, true)
network_interfaces = try(each.value.network_interfaces, var.self_managed_node_group_defaults.network_interfaces, [])
placement = try(each.value.placement, var.self_managed_node_group_defaults.placement, {})
maintenance_options = try(each.value.maintenance_options, var.self_managed_node_group_defaults.maintenance_options, {})
private_dns_name_options = try(each.value.private_dns_name_options, var.self_managed_node_group_defaults.private_dns_name_options, {})
# IAM role
create_iam_instance_profile = try(each.value.create_iam_instance_profile, var.self_managed_node_group_defaults.create_iam_instance_profile, true)
iam_instance_profile_arn = try(each.value.iam_instance_profile_arn, var.self_managed_node_group_defaults.iam_instance_profile_arn, null)
iam_role_name = try(each.value.iam_role_name, var.self_managed_node_group_defaults.iam_role_name, null)
iam_role_use_name_prefix = try(each.value.iam_role_use_name_prefix, var.self_managed_node_group_defaults.iam_role_use_name_prefix, true)
iam_role_path = try(each.value.iam_role_path, var.self_managed_node_group_defaults.iam_role_path, null)
iam_role_description = try(each.value.iam_role_description, var.self_managed_node_group_defaults.iam_role_description, "Self managed node group IAM role")
iam_role_permissions_boundary = try(each.value.iam_role_permissions_boundary, var.self_managed_node_group_defaults.iam_role_permissions_boundary, null)
iam_role_tags = try(each.value.iam_role_tags, var.self_managed_node_group_defaults.iam_role_tags, {})
iam_role_attach_cni_policy = try(each.value.iam_role_attach_cni_policy, var.self_managed_node_group_defaults.iam_role_attach_cni_policy, true)
# To better understand why this `lookup()` logic is required, see:
# https://github.com/hashicorp/terraform/issues/31646#issuecomment-1217279031
iam_role_additional_policies = lookup(each.value, "iam_role_additional_policies", lookup(var.self_managed_node_group_defaults, "iam_role_additional_policies", {}))
# Security group
vpc_security_group_ids = compact(concat([local.node_security_group_id], try(each.value.vpc_security_group_ids, var.self_managed_node_group_defaults.vpc_security_group_ids, [])))
cluster_primary_security_group_id = try(each.value.attach_cluster_primary_security_group, var.self_managed_node_group_defaults.attach_cluster_primary_security_group, false) ? aws_eks_cluster.this[0].vpc_config[0].cluster_security_group_id : null
tags = merge(var.tags, try(each.value.tags, var.self_managed_node_group_defaults.tags, {}))
}
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