My best practice of project structure to provison AWS EC2 AMI with Packer.

This repository requires following runtime environment and modules.

• Mac OSX
• Python (3.6.1 or more)
• Packer (1.1.3 or more)
• Ansible (2.3.1.0 or more)
• Ruby (2.4 or more)
  • Bundler
• AWS CLI (1.14.30 or more)
• Virtualbox (5.2.12 or more)
• Vagrant (2.1.1 or more)

• Install ansible

pip install -r requirements.txt -c constraints.txt

• Boot vargrant instance, initialize and take vagrant snapshot for rollback.

make init-vagrant

• Provison to vagrant instance with null provisioner, and rollback to initial instance state.
  • ROLE : role name linked ansible-playbook file.

make test-local ROLE=hoge

• Edit your aws credential information on ~/.aws/credentials.

[your-profile]
aws_access_key_id = [your access_key_id]
aws_secret_access_key = [your_secret_access_key]
region = [your region]

• Edit packer/env-aws-variables.json that includes packer setting for AWS provisioning.

{
    "aws_region": "your-region",
    "aws_vpc_id": "vpc-xxxxxxxxxxxxxx",
    "aws_subnet_id": "subnet-xxxxxxxxxxx",
    "ssh_user": "centos",
    "use_profile": "your-profile",
    "aws_instance_role": "your-packer-role",
    "aws_keypair_name": "your-keypair-name"
}

• Provision AWS instacne

make create-ami ROLE=hoge AWS_KEY_FILE=${absolute path to aws key file for ssh to instance}