code: def get_nginx_configuration_spec(port_spec_dict, docker_bridge_ip):
      
      nginx_http_config, nginx_stream_config = "", ""
      for port_spec in port_spec_dict['nginx']:
          if port_spec['type'] == 'http':
              nginx_http_config += _nginx_http_spec(port_spec, docker_bridge_ip)
          elif port_spec['type'] == 'stream':
              nginx_stream_config += _nginx_stream_spec(port_spec, docker_bridge_ip)
      return {'http': nginx_http_config, 'stream': nginx_stream_config}
docs: This function will take in a port spec as specified by the port_spec compiler and
      will output an nginx web proxy config string. This string can then be written to a file
      and used running nginx