Intro

Builds an AMI on AWS with all that is needed to build a docker image. After the AMI is built you can boot up an EC2 instace and use it.

The AMI will have Docker and Rocker installed.

Which thing does what?

• Packer builds the AMI
  • Ansible installs and configures Docker and Rocker
• Terraform starts the EC2 instance

Testing locally

To test if all the necessary packages and configuration will be installed correctly run the installation process in isolation:

vagrant up
vagrant ssh
cd /vagrant
ansible-playbook -i hosts -c localhost playbook.yml
# after the installation finished successfully become the 'ubuntu' user:
sudo su - ubuntu
rocker --help

Prerequisites

• Have your awscli installed and configured
• Install packer and terraform
  • Packer Installation Guide
  • Terraform Installation Guide
• Discover your AWS Account Number and copy it:
  • One way to discover it is to log into your account then go to the support center page. At the upper right corner you'll see the Account Number
  • Another way is, if you already have an AMI built, go to the AMIs page on EC2. It will have an Owner column
• Have a Key Pair to use in the instances
  • To create a Key Pair go to the EC2 page > Network & Security & Key Pairs and click on Create Key Pair
  • Make sure to download the created Key Pair

Steps

• Build the AMI:

  packer build packer.json

• Paste your owner and keypair at the main.tf file

• Create the EC2 instance that will use the built AMI:

  terraform get

  terraform plan

  terraform apply

• SSH into the newly created instance and play with it:

  ssh -i [your key pair PEM file] ubuntu@[instance public IP address]