text: # Copyright 2021 Cortex Labs, Inc.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  import sys
  import yaml
  import os
  import pathlib
  from jinja2 import Environment, FileSystemLoader
  
  # python render_template.py [CLUSTER_CONFIG_PATH] TEMPLATE_PATH
  if __name__ == "__main__":
      if len(sys.argv) == 3:
          yaml_file_path = sys.argv[1]
          template_path = pathlib.Path(sys.argv[2])
      elif len(sys.argv) == 2:
          yaml_file_path = None
          template_path = pathlib.Path(sys.argv[1])
      else:
          raise RuntimeError(f"incorrect number of parameters ({len(sys.argv)})")
  
      file_loader = FileSystemLoader(str(template_path.parent))
      env = Environment(loader=file_loader)
      env.trim_blocks = True
      env.lstrip_blocks = True
      env.rstrip_blocks = True
  
      template = env.get_template(str(template_path.name))
  
      if yaml_file_path:
          with open(yaml_file_path, "r") as f:
              yaml_data = yaml.safe_load(f)
              print(template.render(config=yaml_data, env=os.environ))
      else:
          print(template.render(env=os.environ))
  