77 lines
2.4 KiB
Python
77 lines
2.4 KiB
Python
# Copyright 2014 Huawei Technologies Co. Ltd
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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 implied.
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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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"""Open Vswitch module."""
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import logging
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import re
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from compass.hdsdiscovery import base
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from compass.hdsdiscovery import utils
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#Vendor_loader will load vendor instance by CLASS_NAME
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CLASS_NAME = "OVSwitch"
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class OVSwitch(base.BaseVendor):
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"""Open Vswitch."""
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def __init__(self):
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self.__name = "Open vSwitch"
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def is_this_vendor(self, sys_info, host=None, credential=None, **kwargs):
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"""Determine if the hostname is accociated witH this vendor.
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:param host: swtich's IP address
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:param credential: credential to access switch
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"""
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result = sys_info
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if host and credential:
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if utils.is_valid_ssh_credential(credential):
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user = credential['username']
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pwd = credential['password']
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else:
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msg = ("[OVSwitch]The format of credential %r is not for SSH "
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"or incorrect Keywords! " % credential)
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logging.info(msg)
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return False
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cmd = "ovs-vsctl -V"
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result = None
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try:
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result = utils.ssh_remote_execute(host, user, pwd, cmd)
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logging.debug('%s result for %s is %s', cmd, host, result)
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if not result:
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return False
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except Exception as exc:
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logging.error("No vendor or connection failed to run %s", cmd)
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logging.exception(exc)
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return False
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if isinstance(result, str):
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result = [result]
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for line in result:
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if not line:
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continue
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if re.search(r"\b" + re.escape(self.__name) + r"\b", line):
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return True
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return False
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@property
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def name(self):
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"""Open Vswitch name."""
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return self.__name
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