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Merged
jatcod3r merged 1 commit into from
Aug 4, 2026
+287 −2
Merged

feat: add NodePool + Class configs #103

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268 changes: 268 additions & 0 deletions infra/aws/us-east-2/k8s/argo/karpenter/main.tf
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,23 @@ provider "aws" {
profile = var.profile
}

data "aws_vpc" "this" {
tags = {
Name = var.vpc_name
}
}

data "aws_subnets" "private" {
filter {
name = "vpc-id"
values = [data.aws_vpc.this.id]
}

tags = {
Name = "*${var.private_subnet_suffix}*"
}
}

data "aws_eks_cluster" "this" {
name = var.cluster_name
}
Expand Down Expand Up @@ -36,6 +53,29 @@ locals {

locals {
cluster_oidc_provider = trimprefix(data.aws_iam_openid_connect_provider.this.url, "https://")
common_labels = {
"node.coder.io/instance" = "coder-v2"
"node.coder.io/managed-by" = "karpenter"
"node.coder.io/name" = "coder"
"node.coder.io/part-of" = "coder"
}
common_node_requirements = [
{
key = "kubernetes.io/arch"
operator = "In"
values = ["amd64", "arm64"]
},
{
key = "kubernetes.io/os"
operator = "In"
values = ["linux"]
},
{
key = "karpenter.sh/capacity-type"
operator = "In"
values = ["spot", "on-demand"]
}
]
}

module "karpenter" {
Expand Down Expand Up @@ -197,6 +237,234 @@ resource "kubernetes_manifest" "karpenter" {
interruptionQueue = module.karpenter.queue_name
}
}
nodeClasses = [
{
name = "platform"
apiVersion = "eks.amazonaws.com/v1"
kind = "NodeClass"
subnetSelectorTerms = [for subnet_id in data.aws_subnets.private.ids : { id = subnet_id }]
sgSelectorTerms = [{ id = data.aws_eks_cluster.this.vpc_config[0].cluster_security_group_id }]
networkPolicy = "DefaultAllow"
networkPolicyEventLogs = "Disabled"
snatPolicy = "Disabled"
ephemeralStorage = {
iops = 3000
size = "80Gi"
throughput = 125
}
role = var.cluster_node_iam_role_name
tags = {
Name = "platform-node"
}
},
{
name = "coder-provisioner"
apiVersion = "eks.amazonaws.com/v1"
kind = "NodeClass"
subnetSelectorTerms = [for subnet_id in data.aws_subnets.private.ids : { id = subnet_id }]
sgSelectorTerms = [{ id = data.aws_eks_cluster.this.vpc_config[0].cluster_security_group_id }]
networkPolicy = "DefaultAllow"
networkPolicyEventLogs = "Disabled"
snatPolicy = "Disabled"
ephemeralStorage = {
iops = 3000
size = "80Gi"
throughput = 125
}
role = var.cluster_node_iam_role_name
tags = {
Name = "coder-provisioner-node"
}
},
{
name = "coder-workspace"
apiVersion = "karpenter.k8s.aws/v1"
kind = "EC2NodeClass"
userData = <<-EOT
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary="//"

--//
Content-Type: application/node.eks.aws

apiVersion: node.eks.aws/v1alpha1
kind: NodeConfig
spec:
kubelet:
config:
registryPullQPS: 30
--//--
EOT
subnetSelectorTerms = [for subnet_id in data.aws_subnets.private.ids : { id = subnet_id }]
amiSelectorTerms = [{ alias = "al2023@latest" }]
sgSelector = [{ id = data.aws_eks_cluster.this.vpc_config[0].cluster_security_group_id }]
blockDeviceMappings = [{
deviceName = "/dev/xvda"
ebs = {
volumeSize = "200Gi"
volumeType = "gp3"
encrypted = false
deleteOnTermination = true
}
}]
role = module.karpenter.node_iam_role_name
tags = {
Name = "coder-workspace-node"
}
}
]
nodePools = [
{
name = "system"
consolidationPolicy = "WhenEmptyOrUnderutilized"
consolidateAfter = "72h"
budgets = [{ nodes = "10%" }]
labels = merge(local.common_labels, {
"node.coder.io/used-for" = "system"
})
expireAfter = "480h"
taints = [{
key = "CriticalAddonsOnly"
value = "true"
effect = "NoSchedule"
}]
requirements = concat(local.common_node_requirements, [{
key = "node.kubernetes.io/instance-type"
operator = "In"
values = ["c6g.large", "c6g.xlarge", "c6g.2xlarge"]
}])
nodeClassRef = {
group = "eks.amazonaws.com"
kind = "NodeClass"
name = "platform"
}
},
{
name = "observability-platform"
consolidationPolicy = "WhenEmptyOrUnderutilized"
consolidateAfter = "72h"
budgets = [{ nodes = "10%" }]
labels = merge(local.common_labels, {
"node.coder.io/used-for" = "observability-platform"
})
expireAfter = "480h"
taints = [{
key = "platform"
value = "observability-platform"
effect = "NoSchedule"
}]
requirements = concat(local.common_node_requirements, [{
key = "node.kubernetes.io/instance-type"
operator = "In"
values = ["c6g.large", "c6g.xlarge"]
}])
nodeClassRef = {
group = "eks.amazonaws.com"
kind = "NodeClass"
name = "platform"
}
},
{
name = "coder-server"
consolidationPolicy = "WhenEmptyOrUnderutilized"
consolidateAfter = "8h"
budgets = [{ nodes = "10%" }]
labels = merge(local.common_labels, {
"node.coder.io/used-for" = "coder-server"
})
expireAfter = "480h"
taints = [{
key = "platform"
value = "coder-server"
effect = "NoSchedule"
}]
requirements = concat(local.common_node_requirements, [{
key = "node.kubernetes.io/instance-type"
operator = "In"
values = ["c6g.xlarge", "c6g.2xlarge", "c6g.4xlarge"]
}])
nodeClassRef = {
group = "eks.amazonaws.com"
kind = "NodeClass"
name = "platform"
}
},
{
name = "coder-provisioner"
consolidationPolicy = "WhenEmptyOrUnderutilized"
consolidateAfter = "8h"
budgets = [{ nodes = "100%" }]
labels = merge(local.common_labels, {
"node.coder.io/used-for" = "coder-provisioner"
})
expireAfter = "8h"
taints = [{
key = "coder"
value = "provisioner"
effect = "NoSchedule"
}]
requirements = concat(local.common_node_requirements, [{
key = "node.kubernetes.io/instance-type"
operator = "In"
values = ["c6g.large", "c6g.xlarge", "c6g.2xlarge", "c6g.4xlarge"]
}])
nodeClassRef = {
group = "eks.amazonaws.com"
kind = "NodeClass"
name = "platform"
}
},
{
name = "coder-workspace"
consolidationPolicy = "WhenEmptyOrUnderutilized"
consolidateAfter = "4h"
budgets = [{ nodes = "100%" }]
labels = {
"node.coder.io/instance" = "coder-v2"
"node.coder.io/managed-by" = "karpenter"
"node.coder.io/name" = "coder"
"node.coder.io/part-of" = "coder"
"node.coder.io/used-for" = "coder-workspace"
}
expireAfter = "Never"
taints = []
requirements = concat(local.common_node_requirements, [{
key = "node.kubernetes.io/instance-type"
operator = "In"
values = ["c6a.4xlarge", "c6a.8xlarge"]
}])
nodeClassRef = {
group = "karpenter.k8s.aws"
kind = "EC2NodeClass"
name = "coder-workspace"
}
},
{
name = "coder-workspace-static"
consolidationPolicy = "WhenEmptyOrUnderutilized"
consolidateAfter = "0s"
budgets = [{ nodes = "100%" }]
replicas = 2
limits = {
nodes = 100
}
labels = merge(local.common_labels, {
"node.coder.io/used-for" = "coder-workspace-static"
})
expireAfter = "Never"
taints = []
requirements = concat(local.common_node_requirements, [{
key = "node.kubernetes.io/instance-type"
operator = "In"
values = ["c6a.4xlarge", "c6a.8xlarge"]
}])
nodeClassRef = {
group = "karpenter.k8s.aws"
kind = "EC2NodeClass"
name = "coder-workspace"
}
}
]
})
}
}
Expand Down
12 changes: 10 additions & 2 deletions infra/aws/us-east-2/k8s/argo/karpenter/terragrunt.hcl
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Expand Up @@ -8,6 +8,13 @@ include "config" {
expose = true
}

dependency "eks" {
config_path = "../../../eks"
mock_outputs = {
eks_node_iam_role_name = "iam-role-name"
}
}

dependencies {
paths = [
"../../../eks"
Expand All @@ -18,6 +25,7 @@ inputs = {
profile = include.root.locals.CODER_AWS_PROFILE
region = include.config.locals.AWS_REGION

cluster_name = include.root.locals.CODER_CLUSTER_NAME
vpc_name = include.root.locals.CODER_VPC_NAME
cluster_name = include.root.locals.CODER_CLUSTER_NAME
cluster_node_iam_role_name = dependency.eks.outputs.eks_node_iam_role_name
vpc_name = include.root.locals.CODER_VPC_NAME
}
9 changes: 9 additions & 0 deletions infra/aws/us-east-2/k8s/argo/karpenter/variables.tf
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Expand Up @@ -11,6 +11,15 @@ variable "cluster_name" {
type = string
}

variable "cluster_node_iam_role_name" {
type = string
}

variable "vpc_name" {
type = string
}

variable "private_subnet_suffix" {
type = string
default = "private"
}
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