70 lines
2.1 KiB
Python
70 lines
2.1 KiB
Python
#!/usr/bin/env python3
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# Update the base image that is used for devstack VMs.
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# Copyright (C) 2011-2012 OpenStack LLC.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# 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, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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#
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import contextlib
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import sys
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import paramiko
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class SSHException(Exception):
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def __init__(self, message, rc):
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super(SSHException, self).__init__(message)
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self.rc = rc
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class SSHClient(object):
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def __init__(self, ip, username, password=None, pkey=None):
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client = paramiko.SSHClient()
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client.load_system_host_keys()
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client.set_missing_host_key_policy(paramiko.WarningPolicy())
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client.connect(ip, username=username, password=password, pkey=pkey)
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self.client = client
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def ssh(self, command, error_ok=False):
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stdin, stdout, stderr = self.client.exec_command(command)
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print('--- ssh: "%s" ---' % command)
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print(' -- stdout --')
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output = ''
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for x in stdout:
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output += x
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sys.stdout.write(" | " + x)
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ret = stdout.channel.recv_exit_status()
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print(" -- stderr --")
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for x in stderr:
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sys.stdout.write(" | " + x)
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if (not error_ok) and ret:
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raise SSHException("Unable to %s" % command, ret)
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print("--- done ---\n")
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return ret, output
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def scp(self, source, dest):
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print('--- scp copy: %s -> %s' % (source, dest))
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ftp = self.client.open_sftp()
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ftp.put(source, dest)
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ftp.close()
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@contextlib.contextmanager
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def open(self, path, mode):
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ftp = self.client.open_sftp()
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f = ftp.open(path, mode)
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yield f
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ftp.close()
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