robmadole / terraform-aws-nomad

A Terraform Module for how to run Nomad on AWS using Terraform and Packer

Nomad AWS Module

This repo contains a set of modules for deploying a Nomad cluster on AWS using Terraform. Nomad is a distributed, highly-available data-center aware scheduler. A Nomad cluster typically includes a small number of server nodes, which are responsible for being part of the consensus protocol, and a larger number of client nodes, which are used for running jobs.

Features

• Deploy server nodes for managing jobs and client nodes running jobs
• Supports colocated clusters and separate clusters
• Least privilege security group rules for servers
• Auto scaling and Auto healing

Learn

This repo is maintained by Gruntwork, and follows the same patterns as the Gruntwork Infrastructure as Code Library, a collection of reusable, battle-tested, production ready infrastructure code. You can read How to use the Gruntwork Infrastructure as Code Library for an overview of how to use modules maintained by Gruntwork!

Core concepts

• Nomad Use Cases: overview of various use cases that Nomad is optimized for.
• Nomad Guides: official guide on how to configure and setup Nomad clusters as well as how to use Nomad to schedule services on to the workers.
• Nomad Security: overview of how to secure your Nomad clusters.

Repo organization

• modules: the main implementation code for this repo, broken down into multiple standalone, orthogonal submodules.
• examples: This folder contains working examples of how to use the submodules.
• test: Automated tests for the modules and examples.
• root: The root folder is an example of how to use the nomad-cluster module module to deploy a Nomad cluster in AWS. The Terraform Registry requires the root of every repo to contain Terraform code, so we've put one of the examples there. This example is great for learning and experimenting, but for production use, please use the underlying modules in the modules folder directly.

Deploy

Non-production deployment (quick start for learning)

If you just want to try this repo out for experimenting and learning, check out the following resources:

• examples folder: The examples folder contains sample code optimized for learning, experimenting, and testing (but not production usage).

Production deployment

If you want to deploy this repo in production, check out the following resources:

• Nomad Production Setup Guide: detailed guide covering how to setup a production deployment of Nomad.

Manage

Day-to-day operations

• How to deploy Nomad and Consul in the same cluster
• How to deploy Nomad and Consul in separate clusters
• How to connect to the Nomad cluster
• What happens if a node crashes
• How to connect load balancers to the ASG

Major changes

• How to upgrade a Nomad cluster

Support

If you need help with this repo or anything else related to infrastructure or DevOps, Gruntwork offers Commercial Support via Slack, email, and phone/video. If you're already a Gruntwork customer, hop on Slack and ask away! If not, subscribe now. If you're not sure, feel free to email us at [email protected].

Contributions

Contributions to this repo are very welcome and appreciated! If you find a bug or want to add a new feature or even contribute an entirely new module, we are very happy to accept pull requests, provide feedback, and run your changes through our automated test suite.

Please see CONTRIBUTING.md for instructions.

License

Please see LICENSE for details on how the code in this repo is licensed.

Copyright © 2019 Gruntwork, Inc.