terraform-aws-eks-node-group

Terraform module to provision an EKS Node Group for Elastic Container Service for Kubernetes.

Instantiate it multiple times to create many EKS node groups with specific settings such as GPUs, EC2 instance types, or autoscale parameters.

This project is part of our comprehensive "SweetOps" approach towards DevOps.

It's 100% Open Source and licensed under the APACHE2.

We literally have hundreds of terraform modules that are Open Source and well-maintained. Check them out!

Introduction

Usage

IMPORTANT: The master branch is used in source just as an example. In your code, do not pin to master because there may be breaking changes between releases. Instead pin to the release tag (e.g. ?ref=tags/x.y.z) of one of our latest releases.

For a complete example, see examples/complete.

For automated tests of the complete example using bats and Terratest (which tests and deploys the example on AWS), see test.

    provider "aws" {
      region = var.region
    }

    module "label" {
      source     = "git::https://github.com/cloudposse/terraform-null-label.git?ref=tags/0.16.0"
      namespace  = var.namespace
      name       = var.name
      stage      = var.stage
      delimiter  = var.delimiter
      attributes = compact(concat(var.attributes, list("cluster")))
      tags       = var.tags
    }

    locals {
      tags = merge(module.label.tags, map("kubernetes.io/cluster/${module.label.id}", "shared"))
    }

    module "vpc" {
      source     = "git::https://github.com/cloudposse/terraform-aws-vpc.git?ref=tags/0.8.1"
      namespace  = var.namespace
      stage      = var.stage
      name       = var.name
      attributes = var.attributes
      cidr_block = var.vpc_cidr_block
      tags       = local.tags
    }

    module "subnets" {
      source               = "git::https://github.com/cloudposse/terraform-aws-dynamic-subnets.git?ref=tags/0.18.1"
      availability_zones   = var.availability_zones
      namespace            = var.namespace
      stage                = var.stage
      name                 = var.name
      attributes           = var.attributes
      vpc_id               = module.vpc.vpc_id
      igw_id               = module.vpc.igw_id
      cidr_block           = module.vpc.vpc_cidr_block
      nat_gateway_enabled  = false
      nat_instance_enabled = false
      tags                 = local.tags
    }

    module "eks_cluster" {
      source                = "git::https://github.com/cloudposse/terraform-aws-eks-cluster.git?ref=tags/0.13.0"
      namespace             = var.namespace
      stage                 = var.stage
      name                  = var.name
      attributes            = var.attributes
      tags                  = var.tags
      region                = var.region
      vpc_id                = module.vpc.vpc_id
      subnet_ids            = module.subnets.public_subnet_ids
      kubernetes_version    = var.kubernetes_version
      kubeconfig_path       = var.kubeconfig_path
      oidc_provider_enabled = var.oidc_provider_enabled

      workers_role_arns          = [module.eks_node_group.eks_node_group_role_arn]
      workers_security_group_ids = []
    }

    module "eks_node_group" {
      source                = "git::https://github.com/cloudposse/terraform-aws-eks-node-group.git?ref=master"
      namespace                 = var.namespace
      stage                     = var.stage
      name                      = var.name
      attributes                = var.attributes
      tags                      = var.tags
      subnet_ids                = module.subnets.public_subnet_ids
      instance_types            = var.instance_types
      desired_size              = var.desired_size
      min_size                  = var.min_size
      max_size                  = var.max_size
      cluster_name              = module.eks_cluster.eks_cluster_id
      kubernetes_version        = var.kubernetes_version
    }

Makefile Targets

Available targets:

  help                                Help screen
  help/all                            Display help for all targets
  help/short                          This help short screen
  lint                                Lint terraform code

Requirements

Name	Version
terraform	>= 0.13.0, < 0.14.0
aws	~> 3.0
local	~> 1.3
template	~> 2.0

Providers

Name	Version
aws	~> 3.0

Inputs

Name	Description	Type	Default	Required
additional_tag_map	Additional tags for appending to tags_as_list_of_maps. Not added to `tags`.	`map(string)`	`{}`	no
after_cluster_joining_userdata	Additional commands to execute on each worker node after joining the EKS cluster (after executing the `bootstrap.sh` script). For more info, see https://kubedex.com/90-days-of-aws-eks-in-production	`string`	`""`	no
ami_release_version	AMI version of the EKS Node Group. Defaults to latest version for Kubernetes version	`string`	`null`	no
ami_type	Type of Amazon Machine Image (AMI) associated with the EKS Node Group. Defaults to `AL2_x86_64`. Valid values: `AL2_x86_64`, `AL2_x86_64_GPU`. Terraform will only perform drift detection if a configuration value is provided	`string`	`"AL2_x86_64"`	no
attributes	Additional attributes (e.g. `1`)	`list(string)`	`[]`	no
before_cluster_joining_userdata	Additional commands to execute on each worker node before joining the EKS cluster (before executing the `bootstrap.sh` script). For more info, see https://kubedex.com/90-days-of-aws-eks-in-production	`string`	`""`	no
bootstrap_extra_args	Extra arguments to the `bootstrap.sh` script to enable `--enable-docker-bridge` or `--use-max-pods`	`string`	`""`	no
cluster_name	The name of the EKS cluster	`string`	n/a	yes
context	Single object for setting entire context at once. See description of individual variables for details. Leave string and numeric variables as `null` to use default value. Individual variable settings (non-null) override settings in context object, except for attributes, tags, and additional_tag_map, which are merged.	object({ enabled = bool namespace = string environment = string stage = string name = string delimiter = string attributes = list(string) tags = map(string) additional_tag_map = map(string) regex_replace_chars = string label_order = list(string) id_length_limit = number })	{ "additional_tag_map": {}, "attributes": [], "delimiter": null, "enabled": true, "environment": null, "id_length_limit": null, "label_order": [], "name": null, "namespace": null, "regex_replace_chars": null, "stage": null, "tags": {} }	no
delimiter	Delimiter to be used between `namespace`, `environment`, `stage`, `name` and `attributes`. Defaults to `-` (hyphen). Set to `""` to use no delimiter at all.	`string`	`null`	no
desired_size	Desired number of worker nodes (external changes ignored)	`number`	n/a	yes
disk_size	Disk size in GiB for worker nodes. Defaults to 20. Terraform will only perform drift detection if a configuration value is provided	`number`	`20`	no
ec2_ssh_key	SSH key name that should be used to access the worker nodes	`string`	`null`	no
enable_cluster_autoscaler	Whether to enable node group to scale the Auto Scaling Group	`bool`	`false`	no
enabled	Set to false to prevent the module from creating any resources	`bool`	`null`	no
environment	Environment, e.g. 'uw2', 'us-west-2', OR 'prod', 'staging', 'dev', 'UAT'	`string`	`null`	no
existing_workers_role_policy_arns	List of existing policy ARNs that will be attached to the workers default role on creation	`list(string)`	`[]`	no
existing_workers_role_policy_arns_count	Count of existing policy ARNs that will be attached to the workers default role on creation. Needed to prevent Terraform error `count can't be computed`	`number`	`0`	no
id_length_limit	Limit `id` to this many characters. Set to `0` for unlimited length. Set to `null` for default, which is `0`. Does not affect `id_full`.	`number`	`null`	no
instance_types	Set of instance types associated with the EKS Node Group. Defaults to ["t3.medium"]. Terraform will only perform drift detection if a configuration value is provided	`list(string)`	[ "t3.medium" ]	no
kubelet_extra_args	Extra arguments to pass to kubelet, like "--register-with-taints=dedicated=ci-cd:NoSchedule --node-labels=purpose=ci-worker"	`string`	`""`	no
kubernetes_labels	Key-value mapping of Kubernetes labels. Only labels that are applied with the EKS API are managed by this argument. Other Kubernetes labels applied to the EKS Node Group will not be managed	`map(string)`	`{}`	no
kubernetes_version	Kubernetes version. Defaults to EKS Cluster Kubernetes version. Terraform will only perform drift detection if a configuration value is provided	`string`	`null`	no
label_order	The naming order of the id output and Name tag. Defaults to ["namespace", "environment", "stage", "name", "attributes"]. You can omit any of the 5 elements, but at least one must be present.	`list(string)`	`null`	no
launch_template_id	The ID of a custom launch template to use for the EKS node group.	`string`	`null`	no
launch_template_version	A specific version of the above specific launch template	`string`	`null`	no
max_size	Maximum number of worker nodes	`number`	n/a	yes
min_size	Minimum number of worker nodes	`number`	n/a	yes
module_depends_on	Can be any value desired. Module will wait for this value to be computed before creating node group.	`any`	`null`	no
name	Solution name, e.g. 'app' or 'jenkins'	`string`	`null`	no
namespace	Namespace, which could be your organization name or abbreviation, e.g. 'eg' or 'cp'	`string`	`null`	no
regex_replace_chars	Regex to replace chars with empty string in `namespace`, `environment`, `stage` and `name`. If not set, `"/[^a-zA-Z0-9-]/"` is used to remove all characters other than hyphens, letters and digits.	`string`	`null`	no
source_security_group_ids	Set of EC2 Security Group IDs to allow SSH access (port 22) from on the worker nodes. If you specify `ec2_ssh_key`, but do not specify this configuration when you create an EKS Node Group, port 22 on the worker nodes is opened to the Internet (0.0.0.0/0)	`list(string)`	`[]`	no
stage	Stage, e.g. 'prod', 'staging', 'dev', OR 'source', 'build', 'test', 'deploy', 'release'	`string`	`null`	no
subnet_ids	A list of subnet IDs to launch resources in	`list(string)`	n/a	yes
tags	Additional tags (e.g. `map('BusinessUnit','XYZ')`	`map(string)`	`{}`	no

Outputs

Name	Description
eks_node_group_arn	Amazon Resource Name (ARN) of the EKS Node Group
eks_node_group_id	EKS Cluster name and EKS Node Group name separated by a colon
eks_node_group_resources	List of objects containing information about underlying resources of the EKS Node Group
eks_node_group_role_arn	ARN of the worker nodes IAM role
eks_node_group_role_name	Name of the worker nodes IAM role
eks_node_group_status	Status of the EKS Node Group

Share the Love

Like this project? Please give it a ★ on our GitHub! (it helps us a lot)

Are you using this project or any of our other projects? Consider leaving a testimonial. =)

Related Projects

Check out these related projects.

terraform-aws-eks-cluster - Terraform module to provision an EKS cluster on AWS
terraform-aws-eks-workers - Terraform module to provision an AWS AutoScaling Group, IAM Role, and Security Group for EKS Workers
terraform-aws-ec2-autoscale-group - Terraform module to provision Auto Scaling Group and Launch Template on AWS
terraform-aws-ecs-container-definition - Terraform module to generate well-formed JSON documents (container definitions) that are passed to the aws_ecs_task_definition Terraform resource
terraform-aws-ecs-alb-service-task - Terraform module which implements an ECS service which exposes a web service via ALB
terraform-aws-ecs-web-app - Terraform module that implements a web app on ECS and supports autoscaling, CI/CD, monitoring, ALB integration, and much more
terraform-aws-ecs-codepipeline - Terraform module for CI/CD with AWS Code Pipeline and Code Build for ECS
terraform-aws-ecs-cloudwatch-autoscaling - Terraform module to autoscale ECS Service based on CloudWatch metrics
terraform-aws-ecs-cloudwatch-sns-alarms - Terraform module to create CloudWatch Alarms on ECS Service level metrics
terraform-aws-ec2-instance - Terraform module for providing a general purpose EC2 instance
terraform-aws-ec2-instance-group - Terraform module for provisioning multiple general purpose EC2 hosts for stateful applications

Help

Got a question? We got answers.

File a GitHub issue, send us an email or join our Slack Community.

DevOps Accelerator for Startups

We are a DevOps Accelerator. We'll help you build your cloud infrastructure from the ground up so you can own it. Then we'll show you how to operate it and stick around for as long as you need us.

Work directly with our team of DevOps experts via email, slack, and video conferencing.

We deliver 10x the value for a fraction of the cost of a full-time engineer. Our track record is not even funny. If you want things done right and you need it done FAST, then we're your best bet.

Reference Architecture. You'll get everything you need from the ground up built using 100% infrastructure as code.
Release Engineering. You'll have end-to-end CI/CD with unlimited staging environments.
Site Reliability Engineering. You'll have total visibility into your apps and microservices.
Security Baseline. You'll have built-in governance with accountability and audit logs for all changes.
GitOps. You'll be able to operate your infrastructure via Pull Requests.
Training. You'll receive hands-on training so your team can operate what we build.
Questions. You'll have a direct line of communication between our teams via a Shared Slack channel.
Troubleshooting. You'll get help to triage when things aren't working.
Code Reviews. You'll receive constructive feedback on Pull Requests.
Bug Fixes. We'll rapidly work with you to fix any bugs in our projects.

Slack Community

Join our Open Source Community on Slack. It's FREE for everyone! Our "SweetOps" community is where you get to talk with others who share a similar vision for how to rollout and manage infrastructure. This is the best place to talk shop, ask questions, solicit feedback, and work together as a community to build totally sweet infrastructure.

Discourse Forums

Participate in our Discourse Forums. Here you'll find answers to commonly asked questions. Most questions will be related to the enormous number of projects we support on our GitHub. Come here to collaborate on answers, find solutions, and get ideas about the products and services we value. It only takes a minute to get started! Just sign in with SSO using your GitHub account.

Newsletter

Sign up for our newsletter that covers everything on our technology radar. Receive updates on what we're up to on GitHub as well as awesome new projects we discover.

Office Hours

Join us every Wednesday via Zoom for our weekly "Lunch & Learn" sessions. It's FREE for everyone!

Contributing

Bug Reports & Feature Requests

Please use the issue tracker to report any bugs or file feature requests.

Developing

If you are interested in being a contributor and want to get involved in developing this project or help out with our other projects, we would love to hear from you! Shoot us an email.

In general, PRs are welcome. We follow the typical "fork-and-pull" Git workflow.

Fork the repo on GitHub
Clone the project to your own machine
Commit changes to your own branch
Push your work back up to your fork
Submit a Pull Request so that we can review your changes

NOTE: Be sure to merge the latest changes from "upstream" before making a pull request!

Copyright

License

See LICENSE for full details.

Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.  See the NOTICE file
distributed with this work for additional information
regarding copyright ownership.  The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License.  You may obtain a copy of the License at

  https://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied.  See the License for the
specific language governing permissions and limitations
under the License.

Trademarks

All other trademarks referenced herein are the property of their respective owners.

About

This project is maintained and funded by Cloud Posse, LLC. Like it? Please let us know by leaving a testimonial!

We're a DevOps Professional Services company based in Los Angeles, CA. We ❤️ Open Source Software.

We offer paid support on all of our projects.

Check out our other projects, follow us on twitter, apply for a job, or hire us to help with your cloud strategy and implementation.

Contributors

Erik Osterman	Andriy Knysh	Igor Rodionov

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

README.md

README.md

terraform-aws-eks-node-group

Introduction

Usage

Makefile Targets

Requirements

Providers

Inputs

Outputs

Share the Love

Related Projects

Help

DevOps Accelerator for Startups

Slack Community

Discourse Forums

Newsletter

Office Hours

Contributing

Bug Reports & Feature Requests

Developing

Copyright

License

Trademarks

About

Contributors

Files

README.md

Latest commit

History

README.md

File metadata and controls

terraform-aws-eks-node-group

Introduction

Usage

Makefile Targets

Requirements

Providers

Inputs

Outputs

Share the Love

Related Projects

Help

DevOps Accelerator for Startups

Slack Community

Discourse Forums

Newsletter

Office Hours

Contributing

Bug Reports & Feature Requests

Developing

Copyright

License

Trademarks

About

Contributors