A suggestion for https://github.com/netbox-community/netbox-docker/issues/268

load_yaml.py

import itertools
from ruamel.yaml import YAML
from pathlib import Path

def load_yaml(yaml_base_path: str):
  yaml_path = Path(yaml_base_path)
  content_list = []
  content_list.append(load_file(yaml_path.with_suffix('.yml')))
  load_dir(content_list, yaml_path.with_suffix('.d'))
  return flatten(content_list)

def load_file(yaml_file_path: Path):
  if not yaml_file_path.is_file():
    return []
  with yaml_file_path.open("r") as stream:
    yaml = YAML(typ="safe")
    return yaml.load(stream)

def load_dir(content_list: list, yaml_dir_path: Path):
  if not yaml_dir_path.is_dir():
    return
  for yaml_file_path in yaml_dir_path.glob('*.yml')
    content_list.append(load_file(yaml_file_path))

def flatten(content_list: list):
  if len(content_list) == 0:
    return content_list
  if len(content_list) == 1:
    return content_list[0]
  if isinstance(content[0], list):
    return flatten_list(content_list)
  if isinstance(content_list[0], dict):
    return flatten_dict(content_list)
    
def flatten_list(content_list: list):
  # https://stackoverflow.com/a/952952
  flat_list = []
  for sublist in content_list:
    if not sublist:
      continue
    for item in sublist:
      flat_list.append(item)
  return flat_list

def flatten_dict(content_list: list):
  # https://stackoverflow.com/a/3495395
  flat_dict = {}
  for subdict in content_list:
    if not subdict:
      continue
    flat_dict.update(subdict)
  return flat_dict