def get_login_ip():
 raw_ips = file_io.read(constants.LOGIN_IP_LOC)
 ips = raw_ips.split('\n')
 return ips[0]

def get_login_ip ( ) : raw_ips = file_io . read ( constants . LOGIN_IP_LOC ) ips = raw_ips . split ( '\n' ) return ips [ 0 ]
get the public ip of the head node .