aws.json

{
    "variables": {
        "ssh_username": "ziggy",
        "working_directory": ".",
        "build_name": "{{env `BUILD_NAME`}}",
        "build_version": "{{env `VERSION_NUMBER`}}"
    },
    "builders": [
        {
            "type": "amazon-ebs",
            "assume_role": {
              "role_arn"    :  "arn:aws:iam::925908137963:role/ops-mgmt-admin"
            },
            "shutdown_behavior": "terminate",
            "region": "us-east-1",
            "ami_name": "{{ user `build_name`}}-{{ user `build_version`}}",
            "ssh_username": "{{user `ssh_username`}}",
            "instance_type": "m5.large",
            "associate_public_ip_address": true,
            "source_ami_filter": {
                "filters": {
                  "virtualization-type": "hvm",
                  "architecture": "x86_64",
                  "image-type": "machine",
                  "name": "nf-ub-*"
                },
                "owners": "679593333241",
                "most_recent": true
            },    
            "launch_block_device_mappings": [
                {
                  "device_name": "/dev/sda1",
                  "volume_size": 40,
                  "volume_type": "gp2",
                  "delete_on_termination": true
                }
              ],
            "tags":{
                "Name": "{{ user `build_name`}}-{{ user `build_version`}}"
            }
      }
    ],
    "provisioners": [
        {
          "type": "ansible",
          "groups": ["aws"],
          "user": "{{user `ssh_username`}}",
          "playbook_file": "{{user `working_directory`}}/ansible/image-build.yml",
          "extra_arguments": [
            "--extra-vars", "build_version={{user `build_version`}}",
            "-v"
          ]
        }
    ]
}