jupyterlab/docker_jupyterhub/config.json

{
  "kernel_python_credentials" : {
    "username": "",
    "password": "",
    "url": "http://livy:8998",
    "auth": "None"
  },
  "livy_session_startup_timeout_seconds": 300,
  "logging_config": {
    "version": 1,
    "formatters": {
      "magicsFormatter": {
        "format": "%(asctime)s\t%(levelname)s\t%(message)s",
        "datefmt": ""
      }
    },
    "handlers": {
      "magicsHandler": {
        "class": "hdijupyterutils.filehandler.MagicsFileHandler",
        "formatter": "magicsFormatter",
        "home_path": "~/.sparkmagic"
      }
    },
    "loggers": {
      "magicsLogger": {
        "handlers": ["magicsHandler"],
        "level": "INFO",
        "propagate": 0
      }
    }
  }
}