Packer qemu template

gistfile1.json

{
  "builders": [
    {
      "type": "qemu",
      "boot_command": [
        "<tab> text ks=http://{{ .HTTPIP }}:{{ .HTTPPort }}/centos-6.6/ks.cfg<enter><wait>"
      ],
      "boot_wait": "2s",
      "disk_size": 20480,
      "format": "qcow2",
      "accelerator": "kvm",
      "headless": false,
      "disk_interface": "virtio",
      "http_directory": "http",
      "iso_checksum": "08be09fd7276822bd3468af8f96198279ffc41f0",
      "iso_checksum_type": "sha1",
      "iso_url": "{{user `mirror`}}/6.6/isos/x86_64/CentOS-6.6-x86_64-bin-DVD1.iso",
      "output_directory": "uafgina-centos-6.6-x86_64-s",
      "vm_name": "uafgina-centos-6.6-x86_64-s",
      "shutdown_command": "echo 'vagrant'|sudo -S /sbin/halt -h -p",
      "ssh_password": "{{user `user_password`}}",
      "ssh_port": 22,
      "ssh_username": "vagrant",
      "ssh_wait_timeout": "10000s",
      "qemuargs": [
        [ "-m", "480m"]
      ]
    }
  ],
  "provisioners": [
    {
      "environment_vars": [
        "CHEF_VERSION={{user `chef_version`}}"
      ],
      "execute_command": "echo 'vagrant' | {{.Vars}} sudo -S -E bash '{{.Path}}'",
      "scripts": [
        "scripts/centos/fix-slow-dns.sh",
        "scripts/common/sshd.sh",
        "scripts/common/chef.sh",
        "scripts/centos/cleanup.sh"
      ],
      "type": "shell"
    }
  ],
  "variables": {
    "chef_version": "12.2.1",
    "mirror": "http://centos.mbni.med.umich.edu/mirror",
    "user_password": "{{env `PACKER_SSH_PASSWORD`}}"
  }
}