115 lines
4.0 KiB
Python
115 lines
4.0 KiB
Python
# Copyright (C) 2022 Fujitsu
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import os
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import pickle
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import sys
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import time
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from oslo_log import log as logging
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import paramiko
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from tacker.sol_refactored.common import exceptions as sol_ex
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LOG = logging.getLogger(__name__)
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CMD_TIMEOUT = 30
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SERVER_WAIT_COMPLETE_TIME = 60
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SSH_CONNECT_RETRY_COUNT = 4
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class SampleNewCoordinateVNFScript(object):
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def __init__(self, vnfc_param):
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self.vnfc_param = vnfc_param
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def coordinate_vnf(self):
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# check ssh connect and os version
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"""(YiFeng) Add comment to check ssh access
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The next part of code is to check connect VM via ssh.
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Since the zuul's network cannot check this content, so
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we comment this part of code. If you want to check them
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in your local environment, please uncomment.
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# user = self.vnfc_param['username']
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# password = self.vnfc_param['password']
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# host = self.vnfc_param['ssh_ip']
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# commander = self._init_commander(
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# user, password, host, retry=SSH_CONNECT_RETRY_COUNT)
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# ssh_command = 'cat /etc/os-release | grep PRETTY_NAME'
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# result = self._execute_command(commander, host, ssh_command)
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# os_version = result[0].replace('\n', '').split('=')[1]
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# LOG.info('The os version of this new VM is %s', os_version)
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"""
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pass
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def _init_commander(self, user, password, host, retry):
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while retry > 0:
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try:
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ssh = paramiko.SSHClient()
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ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
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ssh.connect(
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host, username=user, password=password)
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LOG.info("Connected to %s", host)
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return ssh
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except paramiko.AuthenticationException as e:
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LOG.error("Authentication failed when connecting to %s",
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host)
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raise sol_ex.VMRunningFailed(e)
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except (paramiko.SSHException,
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paramiko.ssh_exception.NoValidConnectionsError) as e:
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LOG.debug(e)
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retry -= 1
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if retry == 0:
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LOG.error(e)
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raise sol_ex.VMRunningFailed(e)
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time.sleep(SERVER_WAIT_COMPLETE_TIME)
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def _execute_command(self, commander, host, command):
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try:
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stdin, stdout, stderr = commander.exec_command(command)
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cmd_out = stdout.readlines()
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cmd_err = stderr.readlines()
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return_code = stdout.channel.recv_exit_status()
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except paramiko.SSHException as e:
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LOG.error("Command execution failed at %s. Giving up", host)
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raise e
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finally:
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commander.close()
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if return_code != 0:
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error = cmd_err
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raise sol_ex.VMRunningFailed(error_info=error)
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result = "cmd: %s, stdout: %s, stderr: %s, return code: %s" % (
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command, cmd_out, cmd_err, return_code)
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LOG.debug("Remote command execution result: %s", result)
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return cmd_out
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def main():
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operation = "coordinate_vnf"
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vnfc_param = pickle.load(sys.stdin.buffer)
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script = SampleNewCoordinateVNFScript(vnfc_param)
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try:
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getattr(script, operation)()
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except Exception:
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raise Exception
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if __name__ == "__main__":
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try:
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main()
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os._exit(0)
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except Exception as ex:
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sys.stderr.write(str(ex))
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sys.stderr.flush()
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os._exit(1) |