diff options
Diffstat (limited to 'deploy/ssh_client.py')
-rw-r--r-- | deploy/ssh_client.py | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/deploy/ssh_client.py b/deploy/ssh_client.py new file mode 100644 index 000000000..df780961f --- /dev/null +++ b/deploy/ssh_client.py @@ -0,0 +1,98 @@ +############################################################################### +# Copyright (c) 2015 Ericsson AB and others. +# szilard.cserey@ericsson.com +# All rights reserved. This program and the accompanying materials +# are made available under the terms of the Apache License, Version 2.0 +# which accompanies this distribution, and is available at +# http://www.apache.org/licenses/LICENSE-2.0 +############################################################################### + + +import paramiko +import scp + +from common import ( + log, + err, +) + +TIMEOUT = 600 + +class SSHClient(object): + + def __init__(self, host, username, password): + self.host = host + self.username = username + self.password = password + self.client = None + + def open(self, timeout=TIMEOUT): + self.client = paramiko.SSHClient() + self.client.set_missing_host_key_policy(paramiko.AutoAddPolicy()) + self.client.connect(self.host, username=self.username, + password=self.password, look_for_keys=False, + timeout=timeout) + + def close(self): + if self.client is not None: + self.client.close() + self.client = None + + def __enter__(self): + self.open() + return self + + def __exit__(self, type, value, traceback): + self.close() + + def exec_cmd(self, command, check=True, sudo=False, timeout=TIMEOUT): + if sudo and self.username != 'root': + command = "sudo -S -p '' %s" % command + stdin, stdout, stderr = self.client.exec_command(command, + timeout=timeout) + if sudo: + stdin.write(self.password + '\n') + stdin.flush() + response = stdout.read().strip() + error = stderr.read().strip() + + if check: + if error: + self.close() + raise Exception(error) + else: + return response + return response, error + + def run(self, command): + transport = self.client.get_transport() + transport.set_keepalive(1) + chan = transport.open_session() + chan.exec_command(command) + while not chan.exit_status_ready(): + if chan.recv_ready(): + data = chan.recv(1024) + while data: + log(data.strip()) + data = chan.recv(1024) + + if chan.recv_stderr_ready(): + error_buff = chan.recv_stderr(1024) + while error_buff: + log(error_buff.strip()) + error_buff = chan.recv_stderr(1024) + return chan.recv_exit_status() + + def scp_get(self, remote, local='.', dir=False): + try: + with scp.SCPClient(self.client.get_transport()) as _scp: + _scp.get(remote, local, dir) + except Exception as e: + err(e) + + def scp_put(self, local, remote='.', dir=False): + try: + with scp.SCPClient(self.client.get_transport()) as _scp: + _scp.put(local, remote, dir) + except Exception as e: + err(e) |