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Nomad-cluster

(WIP: this project is fairly outdated now and I'm working of redoing this on recent versions of all the tools.)

##Introdution

This is a sample project that demostrate how to build a distributed platform to run containerized microservices based on hashicorp tools.

The tech stack

  • Nomad provides the cluster management/scheduling.

  • Consul provides the service discovery and distributed key/value store.

  • Vault manages the application's secrets.

  • Terraform manages the infrastructure, using Amazon AWS resources

  • Packer is used to build AMIs for the different instance roles using Ansible as a provisioning tool.

##Getting started

Sorry no tooling yet

Set Atlas token and AWS credentials.

export ATLAS_TOKEN="EXAMPLEwzEMjA.atlasv1.EXAMPLELi8aqJkuMj6aB9TKoP3TDJUtXbJVcfdskgASaYgEXAMPLE"
export AWS_PROFILE=acme

Build AMIs

cd packer

packer build -var image_name=nat aws.json  (if using nat boxes as Nat Gateway is not on Free tier) 

packer build -var image_name=bastion aws.json

packer build -var image_name=consul aws.json

packer build -var image_name=nomad aws.json

Deploy with terraform

cd terraform

terraform plan  -input=false  (verify plan) 

terraform apply  -input=false

You should be able to ssh into the bastion host and then to either a consul or nomad server node.