aws: expose node_disk param to control node disk size

terraform/cluster/aws/main.tf

@@ -68,6 +68,7 @@ resource "aws_eks_node_group" "cluster" {
   count = 3
 
   cluster_name    = aws_eks_cluster.cluster.name
+  disk_size       = var.node_disk
   instance_types  = [var.node_type]
   node_group_name = "${var.name}-${data.aws_availability_zones.available.names[count.index]}"
   node_role_arn   = replace(aws_iam_role.nodes.arn, "role/convox/", "role/") # eks barfs on roles with paths

terraform/cluster/aws/variables.tf

@@ -13,3 +13,7 @@ variable "name" {
 variable "node_type" {
   default = "t3.small"
 }
+
+variable "node_disk" {
+  default = 20
+}

terraform/system/aws/main.tf

@@ -43,6 +43,7 @@ module "cluster" {
   cidr      = var.cidr
   name      = var.name
   node_type = var.node_type
+  node_disk = var.node_disk
 }
 
 module "fluentd" {

terraform/system/aws/variables.tf

@@ -17,3 +17,7 @@ variable "release" {
 variable "region" {
   default = "us-east-1"
 }
+
+variable "node_disk" {
+  default = 20
+}