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main.tf
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main.tf
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terraform {
required_version = "~> 0.14.0"
required_providers {
aws = {
source = "hashicorp/aws"
version = "~> 3.0"
}
kubernetes = {
source = "hashicorp/kubernetes"
version = "~> 1.11"
}
}
backend "s3" {
bucket = "terraform-hackweek-snowex"
key = "hackweek-eks-config.tfstate"
region = "us-west-2"
encrypt = true
}
}
provider "kubernetes" {
host = data.aws_eks_cluster.cluster.endpoint
cluster_ca_certificate = base64decode(data.aws_eks_cluster.cluster.certificate_authority.0.data)
token = data.aws_eks_cluster_auth.cluster.token
load_config_file = false
}
provider "aws" {
region = var.region
}
data "aws_caller_identity" "current" {}
data "aws_eks_cluster" "cluster" {
name = module.eks.cluster_id
}
data "aws_eks_cluster_auth" "cluster" {
name = module.eks.cluster_id
}
data "aws_availability_zones" "available" {
}
module "vpc" {
source = "terraform-aws-modules/vpc/aws"
version = "2.77.0"
name = "${local.cluster_name}-vpc"
cidr = "172.16.0.0/16"
azs = data.aws_availability_zones.available.names
public_subnets = ["172.16.1.0/24", "172.16.2.0/24", "172.16.3.0/24"]
private_subnets = ["172.16.4.0/24", "172.16.5.0/24", "172.16.6.0/24"]
enable_dns_hostnames = true
enable_dns_support = true
enable_nat_gateway = true
single_nat_gateway = true
public_subnet_tags = {
"kubernetes.io/cluster/${local.cluster_name}" = "shared"
"kubernetes.io/role/elb" = "1"
}
private_subnet_tags = {
"kubernetes.io/cluster/${local.cluster_name}" = "shared"
"kubernetes.io/role/internal-elb" = "1"
}
}
module "eks" {
source = "terraform-aws-modules/eks/aws"
cluster_name = local.cluster_name
cluster_version = "1.19"
version = "~> 13.0"
subnets = module.vpc.private_subnets
vpc_id = module.vpc.vpc_id
enable_irsa = true
cluster_endpoint_private_access = true
write_kubeconfig = false
worker_groups_launch_template = [
{
name = "core-spot"
asg_max_size = 1
asg_min_size = 1
asg_desired_capacity = 1
override_instance_types = ["t3.large", "t3a.large"]
spot_instance_pools = 2
public_ip = false
subnets = [module.vpc.private_subnets[0]]
# Use this to set labels / taints
kubelet_extra_args = "--node-labels=node.kubernetes.io/lifecycle=spot,hub.jupyter.org/node-purpose=core"
},
{
name = "user-spot"
override_instance_types = ["m5.2xlarge", "m4.2xlarge", "m5a.2xlarge"]
root_volume_type = "gp3"
spot_instance_pools = 3
asg_max_size = 40
asg_min_size = 10
asg_desired_capacity = 10
public_ip = false
subnets = [module.vpc.private_subnets[0]]
# Use this to set labels / taints
kubelet_extra_args = "--node-labels=node.kubernetes.io/lifecycle=spot,hub.jupyter.org/node-purpose=user --register-with-taints hub.jupyter.org/dedicated=user:NoSchedule"
tags = [
{
"key" = "k8s.io/cluster-autoscaler/node-template/label/hub.jupyter.org/node-purpose"
"propagate_at_launch" = "false"
"value" = "user"
},
{
"key" = "k8s.io/cluster-autoscaler/node-template/taint/hub.jupyter.org/dedicated"
"propagate_at_launch" = "false"
"value" = "user:NoSchedule"
},
{
"key" = "k8s.io/cluster-autoscaler/enabled"
"propagate_at_launch" = "false"
"value" = "true"
},
{
"key" = "k8s.io/cluster-autoscaler/${local.cluster_name}"
"propagate_at_launch" = "false"
"value" = "true"
}
]
}
]
}