smaller Version of CoreOS Machine

sample.json

{
  "builders": [
    {
      "type": "vmware-iso",
      "iso_url": "http://stable.release.core-os.net/amd64-usr/current/coreos_production_iso_image.iso",
      "iso_checksum_type": "md5",
      "iso_checksum": "3c26ed3d04b20d84ce1df4c0d1a5352f",
      "ssh_username": "packer",
      "ssh_password": "packer",
      "shutdown_command": "shutdown -P now",
      "remote_type": "esx5",
      "remote_username": "username",
      "remote_password": "password",
      "remote_host": "192.168.2.181",
      "disable_vnc": "false",
      "vnc_disable_password": "true",
      "vmx_data": {
        "numvcpus": "1",
        "memsize": "2048",
      }
    }
  ]
}