centos-6.6-amd64.json

{
  "variables": {
      "remote_host": "{{env `HOST`}}",
      "remote_username": "{{env `USERNAME`}}",
      "remote_password": "{{env `PASSWORD`}}",
      "http_port_min": "{{env `HTTP_PORT`}}{{env `HTTP_PORT_MIN`}}",
      "http_port_max": "{{env `HTTP_PORT`}}{{env `HTTP_PORT_MAX`}}",

      "mirror": "http://www.mirrorservice.org/sites/mirror.centos.org"
  },
  "builders": [
    {
      "type": "xenserver-iso",
      "remote_host": "{{user `remote_host`}}",
      "remote_username": "{{user `remote_username`}}",
      "remote_password": "{{user `remote_password`}}",
      "http_port_min": "{{user `http_port_min`}}",
      "http_port_max": "{{user `http_port_max`}}",

      "vm_name": "packer-centos-6.6-amd64"
      "disk_size": 40960,
      "iso_checksum": "4ed6c56d365bd3ab12cd88b8a480f4a62e7c66d2",
      "iso_checksum_type": "sha1",
      "iso_url": "{{user `mirror`}}/6.6/isos/x86_64/CentOS-6.6-x86_64-minimal.iso",
      "http_directory": "http",
      "ssh_username": "root",
      "ssh_password": "vmpassword",
      "ssh_wait_timeout": "10000s",
      "shutdown_command": "/sbin/halt",
      "boot_command": [
        "<tab> text ks=http://{{ .HTTPIP }}:{{ .HTTPPort }}/centos6-ks.cfg<enter><wait>"
      ],
      "boot_wait": "10s",
    }
  ]
}