Returns the default collector settings

def get_default_config(self):
        """
        Returns the default collector settings
        """
        config = super(CephCollector, self).get_default_config()
        config.update({
            'socket_path': '/var/run/ceph',
            'socket_prefix': 'ceph-',
            'socket_ext': 'asok',
            'ceph_binary': '/usr/bin/ceph',
        })
        return config