template.json

{
  "variables": {
    "version": "2.4.0"
  },
  "builders": [
    {
      "type": "docker",
      "image": "amazonlinux",
      "commit": true
    },
    {
      "type": "amazon-ebs",
      "region": "ap-northeast-1",
      "source_ami": "ami-374db956",
      "instance_type": "m3.medium",
      "ssh_username": "ec2-user",
      "ami_name": "aws-lambda-bins-ruby-{{user `version`}}",
      "force_deregister": true
    }
  ],
  "provisioners": [
    {
      "type": "ansible",
      "playbook_file": "./playbook.yml",
      "extra_arguments": [
        "--extra-vars",
        "version={{user `version`}} build_type={{build_type}}"
      ]
    },
    {
      "type": "file",
      "source": "dest.tar.gz",
      "destination": "./dest/ruby-{{user `version`}}.tar.gz",
      "direction": "download",
      "only": ["amazon-ebs"]
    }
  ],
  "post-processors": [
    {
      "type": "docker-tag",
      "repository": "aws_lambda_bins/ruby",
      "tag": "{{user `version`}}",
      "only": ["docker"]
    }
  ]
}