packer-terraform-pool's Introduction

Pool Starter Kit on AWS

Packer/Terraform launch configuration for mookjp/pool.

Overview

.
├── Rakefile  # Rake tasks for generate ami, pool instance with using packer/terraform
├── ami-id    # [generated file]AMI id generated by packer
├── discovery_url #[generated file]Discovery url generated by `https://discovery.etcd.io`
├── packer # packer configuration directory
│   ├── core.json.erb  
│   └── provisioners
│       └── coreos-init.sh
└── terraform # terraform configuration directory
    ├── core.tf
    ├── plan # [generated file]
    ├── terraform.tfstate # [generated file]
    └── userdata
        ├── pool-userdata.yaml # [generated_file] cloud-config for coreos
        └── pool-userdata.yaml.erb # userdata template for pool instance

Prerequisites

Tool requirements

This kit needs the following commands;

rake
Terraform
Packer
jq

If you don't have these tools, the script ./install-tools.sh may be helpful for installation.

Tasks

rake ami: build pool ami with packer
rake plan: plan terraform configuration
rake apply: launch pool instance (provided by terraform apply)

Configuration variable

Before execute tasks above, you must specify the variables for pool and aws environment below(see the head part of Rakefile);

@access_key = ENV['AWS_ACCESS_KEY_ID']
@secret_key = ENV['AWS_SECRET_ACCESS_KEY']
@region     = ENV['AWS_DEFAULT_REGION']
@subnet_id  = ENV['AWS_PACKER_SUBNET_ID']
@security_group_id = ENV['AWS_PACKER_SG_ID']
@packer_ssh_private_ip = ENV['PACKER_SSH_PRIVATE_IP']

@tfvars = {
  sg_id: ENV['TF_SG_ID'],
  region: ENV['TF_REGION'] || ENV['AWS_DEFAULT_REGION'],
  subnet_id: ENV['TF_SUBNET_ID'],
}

@pool = {
  max_containers:          ENV['MAX_CONTAINERS'] || 10,
  preview_repository_url:  ENV['PREVIEW_REPOSITORY_URL'] || 'http://github.com/mookjp/flaskapp.git',
  pool_base_domain:        ENV['POOL_BASE_DOMAIN'] || 'pool.dev',
  github_bot:              ENV['GITHUB_BOT'] || 'false'
}

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