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Add nso_query module to query Cisco NSO using XPath (#34188)

This commit is contained in:
Claes Nästén 2017-12-22 17:56:50 +01:00 committed by John R Barker
parent cd8632dd7f
commit 5bd8a8f491
3 changed files with 190 additions and 0 deletions

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@ -170,6 +170,17 @@ class JsonRpc(object):
resp, resp_json = self._read_call(payload)
return resp_json['result']
def query(self, xpath, fields):
payload = {
'method': 'query',
'params': {
'xpath_expr': xpath,
'selection': fields
}
}
resp, resp_json = self._read_call(payload)
return resp_json['result']['results']
def run_action(self, th, path, params=None):
if params is None:
params = {}

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@ -0,0 +1,126 @@
#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright (c) 2017 Cisco and/or its affiliates.
#
# 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
ANSIBLE_METADATA = {
'metadata_version': '1.1',
'status': ['preview'],
'supported_by': 'community'
}
DOCUMENTATION = '''
---
module: nso_query
extends_documentation_fragment: nso
short_description: Query data from Cisco NSO.
description:
- This module provides support for querying data from Cisco NSO using XPath.
requirements:
- Cisco NSO version 3.4 or higher.
author: "Claes Nästén (@cnasten)"
options:
xpath:
description: XPath selection relative to the root.
required: true
fields:
description: >
List of fields to select from matching nodes.
required: true
version_added: "2.5"
'''
EXAMPLES = '''
- name: Select device name and description
nso_query:
url: http://localhost:8080/jsonrpc
username: username
password: password
xpath: /ncs:devices/device
fields:
- name
- description
'''
RETURN = '''
output:
description: Value of matching nodes
returned: success
type: list
'''
from ansible.module_utils.network.nso.nso import connect, verify_version, nso_argument_spec
from ansible.module_utils.network.nso.nso import ModuleFailException, NsoException
from ansible.module_utils.basic import AnsibleModule
class NsoQuery(object):
REQUIRED_VERSIONS = [
(3, 4)
]
def __init__(self, check_mode, client, xpath, fields):
self._check_mode = check_mode
self._client = client
self._xpath = xpath
self._fields = fields
def main(self):
if self._check_mode:
return []
else:
return self._client.query(self._xpath, self._fields)
def main():
argument_spec = dict(
xpath=dict(required=True, type='str'),
fields=dict(required=True, type='list')
)
argument_spec.update(nso_argument_spec)
module = AnsibleModule(
argument_spec=argument_spec,
supports_check_mode=True
)
p = module.params
client = connect(p)
nso_query = NsoQuery(
module.check_mode, client,
p['xpath'], p['fields'])
try:
verify_version(client, NsoQuery.REQUIRED_VERSIONS)
output = nso_query.main()
client.logout()
module.exit_json(changed=False, output=output)
except NsoException as ex:
client.logout()
module.fail_json(msg=ex.message)
except ModuleFailException as ex:
client.logout()
module.fail_json(msg=ex.message)
if __name__ == '__main__':
main()

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@ -0,0 +1,53 @@
#
# Copyright (c) 2017 Cisco and/or its affiliates.
#
# 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)
from ansible.compat.tests.mock import patch
from ansible.modules.network.nso import nso_query
from . import nso_module
from .nso_module import MockResponse
class TestNsoQuery(nso_module.TestNsoModule):
module = nso_query
@patch('ansible.module_utils.network.nso.nso.open_url')
def test_nso_query(self, open_url_mock):
xpath = '/packages/package'
fields = ['name', 'package-version']
calls = [
MockResponse('login', {}, 200, '{}', {'set-cookie': 'id'}),
MockResponse('get_system_setting', {'operation': 'version'}, 200, '{"result": "4.5"}'),
MockResponse('new_trans', {'mode': 'read'}, 200, '{"result": {"th": 1}}'),
MockResponse('query',
{'xpath_expr': xpath, 'selection': fields}, 200,
'{"result": {"results": [["test", "1.0"]]}}'),
MockResponse('logout', {}, 200, '{"result": {}}'),
]
open_url_mock.side_effect = lambda *args, **kwargs: nso_module.mock_call(calls, *args, **kwargs)
nso_module.set_module_args({
'username': 'user', 'password': 'password',
'url': 'http://localhost:8080/jsonrpc',
'xpath': xpath,
'fields': fields
})
self.execute_module(changed=False, output=[["test", "1.0"]])
self.assertEqual(0, len(calls))