{
  "variables": {
    "builders": [
      "amazon-ebs-amazon-linux"
    ],
    "project_description": "nubis jumphost install",
    "project_name": "nubis-jumphost",
    "project_version": "v1.0.2-dev",
    "source_ami_project_name": "nubis-base",
    "source_ami_project_version": "v1.0.2-dev"
  }
}

{
  "variables": {
    "builders": [
      "amazon-ebs-amazon-linux",
      "amazon-ebs-centos"
    ],
    "project_description": "nubis jumphost install",
    "project_name": "nubis-jumphost",
    "project_version": "v1.2.0-dev"
  }
}

Add CentOS as a built OS
Add CentOS as a built OS

And jump on v1.2.0-dev
