Sample Packer template for OS X. ISO was built using prepare_veewee_iso.sh script available in the Veewee OS X template: https://github.com/jedi4ever/veewee/tree/master/templates/OSX/prepare_veewee_iso

packer_osx_template_example.json

{
  "builders": [
    {
      "boot_wait": "2s",
      "disk_size": 20480,
      "guest_os_type": "darwin12-64",
      "http_directory": "http",
      "iso_checksum_type": "md5",
      "iso_checksum": "50d9327a222ea08fda43475cb901f937",
      "iso_url": "file:///Users/tsutton/git/github/veewee/iso/OSX_InstallESD_10.8.3_12D78.dmg",
      "shutdown_command": "echo 'vagrant'|sudo -S shutdown -h now",
      "skip_compaction": true,
      "ssh_password": "vagrant",
      "ssh_port": 22,
      "ssh_username": "vagrant",
      "ssh_wait_timeout": "10000s",
      "tools_upload_flavor": "darwin",
      "type": "vmware",
      "vmx_data": {
        "cpuid.coresPerSocket": "1",
        "memsize": "2048",
        "numvcpus": "1",
        "firmware": "efi",
        "keyboardAndMouseProfile": "macProfile",
        "smc.present": "TRUE",
        "hpet0.present": "TRUE",
        "ich7m.present": "TRUE",
        "ehci.present": "TRUE",
        "usb.present": "TRUE"
      }
    }
  ],
  "post-processors": [
    "vagrant"
  ],
  "provisioners": [
    {
      "execute_command": "chmod +x {{ .Path }}; sudo {{ .Vars }} {{ .Path }}",
      "scripts": [
        "scripts/postinstall.sh",
        "scripts/xcode-cli-tools.sh",
        "scripts/chef-omnibus.sh",
        "scripts/puppet.sh",
        "scripts/fix_user_perms.sh"
      ],
      "type": "shell"
    }
  ]
}