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chore: added support for nat connectivity to the eks worker node subnet for sts calls #81

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chore: added support for nat connectivity to the eks worker node subnet for sts calls #81

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4 changes: 2 additions & 2 deletions terraform/aws/modules/composition/vpc-network/outputs.tf
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Original file line number Diff line number Diff line change
Expand Up @@ -240,8 +240,8 @@ output "proxy_peering_nat_c_route_table_id" {
}

output "eks_worker_route_table_id" {
description = "ID of the EKS worker route table (S3 only, no NAT)"
value = module.eks_worker_rt.route_table_id
description = "ID of the EKS worker route table (NAT + S3)"
value = var.enable_nat_gateway ? module.eks_worker_rt[0].route_table_id : ""
}

output "common_local_nat_s3_route_table_id" {
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14 changes: 8 additions & 6 deletions terraform/aws/modules/composition/vpc-network/route-tables.tf
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Expand Up @@ -202,20 +202,22 @@ module "proxy_peering_nat_c_rt" {
}


# EKS Worker Route Table - Single route table for all EKS worker subnets (S3 only, no NAT)
# EKS Worker Route Table - Single route table for all EKS worker subnets with NAT access
module "eks_worker_rt" {
source = "../../base/route-table"
count = var.enable_nat_gateway ? 1 : 0

vpc_id = module.vpc.vpc_id
route_table_name = "${var.vpc_name}-EKSWorker"

create_nat_gateway_route = false
create_nat_gateway_route = true
nat_gateway_id = module.external_incoming_subnets[0].nat_gateway_id

tags = merge(
var.tags,
{
Name = "${var.vpc_name}-EKSWorker"
Type = "eks-worker-s3-only"
Type = "eks-worker-nat"
}
)
}
Expand Down Expand Up @@ -260,12 +262,12 @@ resource "aws_route_table_association" "management" {
route_table_id = module.common_internet_s3_rt.route_table_id
}

# Associate EKS Worker subnets with EKSWorker route table (S3 only, no NAT)
# Associate EKS Worker subnets with EKSWorker route table (NAT + S3)
resource "aws_route_table_association" "eks_workers" {
count = length(var.eks_workers_subnet_cidrs)
count = var.enable_nat_gateway ? length(var.eks_workers_subnet_cidrs) : 0

subnet_id = module.eks_workers_subnets[count.index].subnet_id
route_table_id = module.eks_worker_rt.route_table_id
route_table_id = module.eks_worker_rt[0].route_table_id
}

# Associate EKS Control Plane subnets with CommonLocalRoute
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4 changes: 2 additions & 2 deletions terraform/aws/modules/composition/vpc-network/vpc-endpoints.tf
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Expand Up @@ -132,8 +132,8 @@ locals {
var.enable_nat_gateway && length(var.availability_zones) > 0 ? [module.proxy_peering_nat_a_rt[0].route_table_id] : [],
var.enable_nat_gateway && length(var.availability_zones) > 1 ? [module.proxy_peering_nat_b_rt[0].route_table_id] : [],
var.enable_nat_gateway && length(var.availability_zones) > 2 ? [module.proxy_peering_nat_c_rt[0].route_table_id] : [],
# EKS Worker route table (S3 only, no NAT)
[module.eks_worker_rt.route_table_id],
# EKS Worker route table (NAT + S3)
var.enable_nat_gateway ? [module.eks_worker_rt[0].route_table_id] : [],
# Common Local NAT S3 route table (NAT + S3)
var.enable_nat_gateway ? [module.common_local_nat_s3_rt[0].route_table_id] : [],
var.include_database_route_tables_in_gateway_endpoints ? [module.db_route_table.route_table_id] : []
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