mirror of https://github.com/apache/cloudstack.git
109 lines
4.2 KiB
Python
109 lines
4.2 KiB
Python
# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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import paramiko
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import time
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import cloudstackException
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import contextlib
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import logging
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from contextlib import closing
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class remoteSSHClient(object):
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def __init__(self, host, port, user, passwd, retries=10, delay=30,
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log_lvl=logging.INFO, keyPairFileLocation=None):
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self.host = host
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self.port = port
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self.user = user
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self.passwd = passwd
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self.keyPairFile = keyPairFileLocation
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self.ssh = paramiko.SSHClient()
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self.ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
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self.logger = logging.getLogger('sshClient')
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ch = logging.StreamHandler()
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ch.setLevel(log_lvl)
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self.logger.addHandler(ch)
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retry_count = retries
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while retry_count >= 0:
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try:
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if keyPairFileLocation is None:
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self.ssh.connect(str(host), int(port), user, passwd)
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self.logger.debug("SSH connect: %s@%s with passwd %s" %
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(user, str(host), passwd))
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else:
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self.ssh.connect(hostname=str(host),
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port=int(port),
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username=str(user),
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key_filename=str(keyPairFileLocation),
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look_for_keys=False
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)
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self.logger.debug(
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"connecting to server %s with user %s key %s" %
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(str(host), user, keyPairFileLocation))
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self.logger.debug("SSH connect: %s@%s with passwd %s" %
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(user, str(host), passwd))
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#except paramiko.AuthenticationException, authEx:
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# raise cloudstackException. \
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# InvalidParameterException("Invalid credentials to "
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# + "login to %s on port %s" %
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# (str(host), port))
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except Exception as se:
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if retry_count == 0:
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raise cloudstackException. \
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InvalidParameterException(repr(se))
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else:
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return
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retry_count = retry_count - 1
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time.sleep(delay)
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def execute(self, command):
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stdin, stdout, stderr = self.ssh.exec_command(command)
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output = stdout.readlines()
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errors = stderr.readlines()
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results = []
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if output is not None and len(output) == 0:
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if errors is not None and len(errors) > 0:
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for error in errors:
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results.append(error.rstrip())
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else:
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for strOut in output:
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results.append(strOut.rstrip())
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self.logger.debug("{Cmd: %s via Host: %s} {returns: %s}" %
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(command, str(self.host), results))
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return results
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def scp(self, srcFile, destPath):
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transport = paramiko.Transport((self.host, int(self.port)))
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transport.connect(username=self.user, password=self.passwd)
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sftp = paramiko.SFTPClient.from_transport(transport)
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try:
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sftp.put(srcFile, destPath)
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except IOError, e:
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raise e
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def close(self):
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self.ssh.close()
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if __name__ == "__main__":
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with contextlib.closing(remoteSSHClient("10.223.75.10", 22, "root",
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"password")) as ssh:
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print ssh.execute("ls -l")
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