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community.general/plugins/netconf/ce.py
Ansible Core Team aebc1b03fd Initial commit
2020-03-09 09:11:07 +00:00

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9.4 KiB
Python

#
# (c) 2017 Red Hat Inc.
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
#
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
DOCUMENTATION = '''
---
netconf: ce
short_description: Use ce netconf plugin to run netconf commands on Huawei Cloudengine platform
description:
- This ce plugin provides low level abstraction apis for
sending and receiving netconf commands from Huawei Cloudengine network devices.
options:
ncclient_device_handler:
type: str
default: huawei
description:
- Specifies the ncclient device handler name for Huawei Cloudengine.
To identify the ncclient device handler name refer ncclient library documentation.
'''
import json
import re
from ansible.module_utils._text import to_text, to_bytes
from ansible.errors import AnsibleConnectionFailure
from ansible.plugins.netconf import NetconfBase, ensure_ncclient
try:
from ncclient import manager
from ncclient.operations import RPCError
from ncclient.transport.errors import SSHUnknownHostError
from ncclient.xml_ import to_ele, to_xml, new_ele
HAS_NCCLIENT = True
except (ImportError, AttributeError): # paramiko and gssapi are incompatible and raise AttributeError not ImportError
HAS_NCCLIENT = False
try:
from lxml.etree import fromstring
except ImportError:
from xml.etree.ElementTree import fromstring
class Netconf(NetconfBase):
@ensure_ncclient
def get_text(self, ele, tag):
try:
return to_text(ele.find(tag).text, errors='surrogate_then_replace').strip()
except AttributeError:
pass
@ensure_ncclient
def get_device_info(self):
device_info = dict()
device_info['network_os'] = 'ce'
filter_xml = '''<filter type="subtree">
<system xmlns="http://www.huawei.com/netconf/vrp" content-version="1.0" format-version="1.0">
<systemInfo>
<sysName></sysName>
<sysContact></sysContact>
<productVer></productVer>
<platformVer></platformVer>
<productName></productName>
</systemInfo>
</system>
</filter>'''
data = self.get(filter_xml)
data = re.sub(r'xmlns=".+?"', r'', data)
reply = fromstring(to_bytes(data, errors='surrogate_or_strict'))
sw_info = reply.find('.//systemInfo')
device_info['network_os_version'] = self.get_text(sw_info, 'productVer')
device_info['network_os_hostname'] = self.get_text(sw_info, 'sysName')
device_info['network_os_platform_version'] = self.get_text(sw_info, 'platformVer')
device_info['network_os_platform'] = self.get_text(sw_info, 'productName')
return device_info
def execute_rpc(self, name):
"""RPC to be execute on remote device
:name: Name of rpc in string format"""
return self.rpc(name)
@ensure_ncclient
def load_configuration(self, *args, **kwargs):
"""Loads given configuration on device
:format: Format of configuration (xml, text, set)
:action: Action to be performed (merge, replace, override, update)
:target: is the name of the configuration datastore being edited
:config: is the configuration in string format."""
if kwargs.get('config'):
kwargs['config'] = to_bytes(kwargs['config'], errors='surrogate_or_strict')
if kwargs.get('format', 'xml') == 'xml':
kwargs['config'] = to_ele(kwargs['config'])
try:
return self.m.load_configuration(*args, **kwargs).data_xml
except RPCError as exc:
raise Exception(to_xml(exc.xml))
def get_capabilities(self):
result = dict()
result['rpc'] = self.get_base_rpc() + ['execute_rpc', 'load_configuration', 'get_configuration', 'compare_configuration',
'execute_action', 'halt', 'reboot', 'execute_nc_cli', 'dispatch_rpc']
result['network_api'] = 'netconf'
result['device_info'] = self.get_device_info()
result['server_capabilities'] = [c for c in self.m.server_capabilities]
result['client_capabilities'] = [c for c in self.m.client_capabilities]
result['session_id'] = self.m.session_id
return json.dumps(result)
@staticmethod
@ensure_ncclient
def guess_network_os(obj):
try:
m = manager.connect(
host=obj._play_context.remote_addr,
port=obj._play_context.port or 830,
username=obj._play_context.remote_user,
password=obj._play_context.password,
key_filename=obj.key_filename,
hostkey_verify=obj.get_option('host_key_checking'),
look_for_keys=obj.get_option('look_for_keys'),
allow_agent=obj._play_context.allow_agent,
timeout=obj.get_option('persistent_connect_timeout'),
# We need to pass in the path to the ssh_config file when guessing
# the network_os so that a jumphost is correctly used if defined
ssh_config=obj._ssh_config
)
except SSHUnknownHostError as exc:
raise AnsibleConnectionFailure(to_text(exc))
guessed_os = None
for c in m.server_capabilities:
if re.search('huawei', c):
guessed_os = 'ce'
break
m.close_session()
return guessed_os
def get_configuration(self, *args, **kwargs):
"""Retrieve all or part of a specified configuration.
:format: format in configuration should be retrieved
:filter: specifies the portion of the configuration to retrieve
(by default entire configuration is retrieved)"""
return self.m.get_configuration(*args, **kwargs).data_xml
def compare_configuration(self, *args, **kwargs):
"""Compare configuration
:rollback: rollback id"""
return self.m.compare_configuration(*args, **kwargs).data_xml
@ensure_ncclient
def execute_action(self, xml_str):
"""huawei execute-action"""
con_obj = None
try:
con_obj = self.m.action(action=xml_str)
except RPCError as exc:
raise Exception(to_xml(exc.xml))
return con_obj.xml
def halt(self):
"""reboot the device"""
return self.m.halt().data_xml
def reboot(self):
"""reboot the device"""
return self.m.reboot().data_xml
@ensure_ncclient
def get(self, *args, **kwargs):
try:
if_rpc_reply = kwargs.pop('if_rpc_reply', False)
if if_rpc_reply:
return self.m.get(*args, **kwargs).xml
return self.m.get(*args, **kwargs).data_xml
except RPCError as exc:
raise Exception(to_xml(exc.xml))
@ensure_ncclient
def get_config(self, *args, **kwargs):
try:
return self.m.get_config(*args, **kwargs).data_xml
except RPCError as exc:
raise Exception(to_xml(exc.xml))
@ensure_ncclient
def edit_config(self, *args, **kwargs):
try:
return self.m.edit_config(*args, **kwargs).xml
except RPCError as exc:
raise Exception(to_xml(exc.xml))
@ensure_ncclient
def execute_nc_cli(self, *args, **kwargs):
try:
return self.m.cli(*args, **kwargs).xml
except RPCError as exc:
raise Exception(to_xml(exc.xml))
@ensure_ncclient
def commit(self, *args, **kwargs):
try:
return self.m.commit(*args, **kwargs).data_xml
except RPCError as exc:
raise Exception(to_xml(exc.xml))
def validate(self, *args, **kwargs):
return self.m.validate(*args, **kwargs).data_xml
def discard_changes(self, *args, **kwargs):
return self.m.discard_changes(*args, **kwargs).data_xml
@ensure_ncclient
def dispatch_rpc(self, rpc_command=None, source=None, filter=None):
"""
Execute rpc on the remote device eg. dispatch('get-next')
:param rpc_command: specifies rpc command to be dispatched either in plain text or in xml element format (depending on command)
:param source: name of the configuration datastore being queried
:param filter: specifies the portion of the configuration to retrieve (by default entire configuration is retrieved)
:return: Returns xml string containing the rpc-reply response received from remote host
"""
if rpc_command is None:
raise ValueError('rpc_command value must be provided')
resp = self.m.dispatch(fromstring(rpc_command), source=source, filter=filter)
# just return rpc-reply xml
return resp.xml