X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=resources%2Flibraries%2Fpython%2Fssh.py;h=3a2c1b661a8546639b7790ffd3f8a1983c4c03c9;hb=4d9b95cde48fe1b9abf70a5c7c2edcdb3199776d;hp=8acb54b3824f7dfed8c50e6d7c2d3abe832de272;hpb=145e2101dc39a701286bc51ddaa0dbd1a4cf022f;p=csit.git diff --git a/resources/libraries/python/ssh.py b/resources/libraries/python/ssh.py index 8acb54b382..3a2c1b661a 100644 --- a/resources/libraries/python/ssh.py +++ b/resources/libraries/python/ssh.py @@ -29,6 +29,11 @@ __all__ = ["exec_cmd", "exec_cmd_no_error"] # TODO: load priv key +class SSHTimeout(Exception): + """This exception is raised when a timeout occurs.""" + pass + + class SSH(object): """Contains methods for managing and using SSH connections.""" @@ -118,7 +123,7 @@ class SSH(object): :type timeout: int :return return_code, stdout, stderr :rtype: tuple(int, str, str) - :raise socket.timeout: If command is not finished in timeout time. + :raise SSHTimeout: If command is not finished in timeout time. """ start = time() stdout = StringIO.StringIO() @@ -144,7 +149,7 @@ class SSH(object): stderr.write(chan.recv_stderr(self.__MAX_RECV_BUF)) if time() - start > timeout: - raise socket.timeout( + raise SSHTimeout( 'Timeout exception.\n' 'Current contents of stdout buffer: {0}\n' 'Current contents of stderr buffer: {1}\n' @@ -195,7 +200,7 @@ class SSH(object): command = 'sudo -S {c} <<< "{i}"'.format(c=cmd, i=cmd_input) return self.exec_command(command, timeout) - def interactive_terminal_open(self, time_out=10): + def interactive_terminal_open(self, time_out=30): """Open interactive terminal on a new channel on the connected Node. :param time_out: Timeout in seconds. @@ -228,8 +233,7 @@ class SSH(object): raise Exception('Socket timeout: {0}'.format(buf)) return chan - def interactive_terminal_exec_command(self, chan, cmd, prompt, - time_out=30): + def interactive_terminal_exec_command(self, chan, cmd, prompt): """Execute command on interactive terminal. interactive_terminal_open() method has to be called first! @@ -238,7 +242,6 @@ class SSH(object): :param cmd: Command to be executed. :param prompt: Command prompt, sequence of characters used to indicate readiness to accept commands. - :param time_out: Timeout in seconds. :return: Command output. .. warning:: Interruptingcow is used here, and it uses @@ -303,7 +306,7 @@ def exec_cmd(node, cmd, timeout=600, sudo=False): ssh = SSH() try: ssh.connect(node) - except Exception as err: + except SSHException as err: logger.error("Failed to connect to node" + str(err)) return None, None, None @@ -313,7 +316,7 @@ def exec_cmd(node, cmd, timeout=600, sudo=False): else: (ret_code, stdout, stderr) = ssh.exec_command_sudo(cmd, timeout=timeout) - except Exception as err: + except SSHException as err: logger.error(err) return None, None, None