api target breeder dag config file

Associate dag config file with uuid of breeder.  That prepares ground
for several separately running breeder instances.

api/controller.py

@@ -85,7 +85,7 @@ def breeders_id_delete(breeder_id): # noqa: E501
  """
 
  # cleanup dag definition config file
- filename = f"{DAG_DIR}/root_dag.py"
+ filename = f"{DAG_DIR}/{breeder_id}.py"
 
  if os.path.exists(filename):
  os.remove(filename)
@@ -201,7 +201,7 @@ def create_breeder(api_client, content):
  # templating related
  environment = Environment(loader=FileSystemLoader(DAG_TEMPLATES_DIR))
  template = environment.get_template("root_dag.py")
- filename = f"{DAG_DIR}/root_dag.py"
+ filename = f"{DAG_DIR}/{breeder_id}.py"
  rendered_dag = template.render(breeder_config_full)
 
  with open(filename, mode="w", encoding="utf-8") as dag_file: