code: def index(environment, start_response, headers):
    
    response = {'service': 'kronosd',
                'version': kronos.__version__,
                'id': settings.node['id'],
                'storage': {},
                SUCCESS_FIELD: True}
  
    # Check if each backend is alive
    for name, backend in router.get_backends():
      response['storage'][name] = {'alive': backend.is_alive(),
                                   'backend': settings.storage[name]['backend']}
  
    start_response('200 OK', headers)
    return response
docs: Return the status of this Kronos instance + its backends>
    Doesn't expect any URL parameters.