#!/usr/bin/env python
"""
Template a file using shell environment as the data

Designed to be very, very simple for use in docker containers
"""
from __future__ import print_function

import os
import sys

from jinja2 import Template


inputFile = open(sys.argv[1], 'rb')
tpl = Template(inputFile.read())
print(tpl.render(__environ__=os.environ, **os.environ))
