// - The contents of the script file will be wrapped in Packer's startup script wrapper, unless `wrap_startup_script` is disabled. See `wrap_startup_script` for more details.
// - Not supported by Windows instances. See [Startup Scripts for Windows](https://cloud.google.com/compute/docs/startupscript#providing_a_startup_script_for_windows_instances) for more details.
- The contents of the script file will be wrapped in Packer's startup script wrapper, unless `wrap_startup_script` is disabled. See `wrap_startup_script` for more details.
- Not supported by Windows instances. See [Startup Scripts for Windows](https://cloud.google.com/compute/docs/startupscript#providing_a_startup_script_for_windows_instances) for more details.
- `windows_password_timeout` (duration string | ex: "1h5m2s") - The time to wait for windows password to be retrieved. Defaults to "3m".
- `wrap_startup_script` (boolean) - For backwards compatibility this option defaults to `"true"` in the future it will default to `"false"`.
If "true", the contents of `startup_script_file` or `"startup_script"` in the instance metadata
is wrapped in a Packer specific script that tracks the execution and completion of the provided