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community.general/plugins/modules/network/opx/opx_cps.py

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2020-03-09 10:11:07 +01:00
#!/usr/bin/python
# -*- coding: utf-8 -*-
# (c) 2018 Dell Inc. or its subsidiaries. All Rights Reserved.
#
# This file is part of Ansible by Red Hat
#
# 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: opx_cps
author: "Senthil Kumar Ganesan (@skg-net)"
short_description: CPS operations on networking device running Openswitch (OPX)
description:
- Executes the given operation on the YANG object, using CPS API in the
networking device running OpenSwitch (OPX). It uses the YANG models
provided in https://github.com/open-switch/opx-base-model.
options:
module_name:
description:
- Yang path to be configured.
attr_type:
description:
- Attribute Yang type.
attr_data:
description:
- Attribute Yang path and their corresponding data.
operation:
description:
- Operation to be performed on the object.
default: create
choices: ['delete', 'create', 'set', 'action', 'get']
db:
description:
- Queries/Writes the specified yang path from/to the db.
type: bool
default: 'no'
qualifier:
description:
- A qualifier provides the type of object data to retrieve or act on.
default: target
choices: ['target', 'observed', 'proposed', 'realtime', 'registration', 'running', 'startup']
commit_event:
description:
- Attempts to force the auto-commit event to the specified yang object.
type: bool
default: 'no'
requirements:
- "cps"
- "cps_object"
- "cps_utils"
'''
EXAMPLES = """
- name: Create VLAN
opx_cps:
module_name: "dell-base-if-cmn/if/interfaces/interface"
attr_data: {
"base-if-vlan/if/interfaces/interface/id": 230,
"if/interfaces/interface/name": "br230",
"if/interfaces/interface/type": "ianaift:l2vlan"
}
operation: "create"
- name: Get VLAN
opx_cps:
module_name: "dell-base-if-cmn/if/interfaces/interface"
attr_data: {
"if/interfaces/interface/name": "br230",
}
operation: "get"
- name: Modify some attributes in VLAN
opx_cps:
module_name: "dell-base-if-cmn/if/interfaces/interface"
attr_data: {
"cps/key_data":
{ "if/interfaces/interface/name": "br230" },
"dell-if/if/interfaces/interface/untagged-ports": ["e101-008-0"],
}
operation: "set"
- name: Delete VLAN
opx_cps:
module_name: "dell-base-if-cmn/if/interfaces/interface"
attr_data: {
"if/interfaces/interface/name": "br230",
}
operation: "delete"
"""
RETURN = """
response:
description: Output from the CPS transaction.
Output of CPS Get operation if CPS set/create/delete not done.
returned: when a CPS transaction is successfully performed.
type: list
sample:
[{
"data": {
"base-if-vlan/if/interfaces/interface/id": 230,
"cps/object-group/return-code": 0,
"dell-base-if-cmn/if/interfaces/interface/if-index": 46,
"if/interfaces/interface/name": "br230",
"if/interfaces/interface/type": "ianaift:l2vlan"
},
"key": "target/dell-base-if-cmn/if/interfaces/interface"
}]
cps_curr_config:
description: Returns the CPS Get output i.e. the running configuration
before CPS operation of set/delete is performed
returned: when CPS operations set, delete
type: dict
sample:
[{
"data": {
"base-if-vlan/if/interfaces/interface/id": 230,
"cps/key_data": {
"if/interfaces/interface/name": "br230"
},
"dell-base-if-cmn/if/interfaces/interface/if-index": 44,
"dell-if/if/interfaces/interface/learning-mode": 1,
"dell-if/if/interfaces/interface/mtu": 1532,
"dell-if/if/interfaces/interface/phys-address": "",
"dell-if/if/interfaces/interface/vlan-type": 1,
"if/interfaces/interface/enabled": 0,
"if/interfaces/interface/type": "ianaift:l2vlan"
},
"key": "target/dell-base-if-cmn/if/interfaces/interface"
}]
diff:
description: The actual configuration that will be pushed comparing
the running configuration and input attributes
returned: when CPS operations set, delete
type: dict
sample:
{
"cps/key_data": {
"if/interfaces/interface/name": "br230"
},
"dell-if/if/interfaces/interface/untagged-ports": [
"e101-007-0"
]
}
db:
description: Denotes if CPS DB transaction was performed
returned: when db is set to True in module options
type: bool
sample: True
commit_event:
description: Denotes if auto-commit event is set
returned: when commit_event is set to True in module options
type: bool
sample: True
"""
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils.six import iteritems
from ansible_collections.ansible.netcommon.plugins.module_utils.network.common.utils import dict_diff
try:
import cps
import cps_object
import cps_utils
HAS_CPS = True
except ImportError:
HAS_CPS = False
def convert_cps_raw_list(raw_list):
resp_list = []
if raw_list:
for raw_elem in raw_list:
processed_element = convert_cps_raw_data(raw_elem)
if processed_element:
raw_key = raw_elem['key']
individual_element = {}
individual_element['data'] = processed_element
individual_element['key'] = (cps.qual_from_key(raw_key) + "/" +
cps.name_from_key(raw_key, 1))
resp_list.append(individual_element)
return resp_list
def convert_cps_raw_data(raw_elem):
d = {}
obj = cps_object.CPSObject(obj=raw_elem)
for attr in raw_elem['data']:
d[attr] = obj.get_attr_data(attr)
return d
def parse_cps_parameters(module_name, qualifier, attr_type,
attr_data, operation=None, db=None,
commit_event=None):
obj = cps_object.CPSObject(module=module_name, qual=qualifier)
if operation:
obj.set_property('oper', operation)
if attr_type:
for key, val in iteritems(attr_type):
cps_utils.cps_attr_types_map.add_type(key, val)
for key, val in iteritems(attr_data):
embed_attrs = key.split(',')
embed_attrs_len = len(embed_attrs)
if embed_attrs_len >= 3:
obj.add_embed_attr(embed_attrs, val, embed_attrs_len - 2)
else:
if isinstance(val, str):
val_list = val.split(',')
# Treat as list if value contains ',' but is not
# enclosed within {}
if len(val_list) == 1 or val.startswith('{'):
obj.add_attr(key, val)
else:
obj.add_attr(key, val_list)
else:
obj.add_attr(key, val)
if db:
cps.set_ownership_type(obj.get_key(), 'db')
obj.set_property('db', True)
else:
obj.set_property('db', False)
if commit_event:
cps.set_auto_commit_event(obj.get_key(), True)
obj.set_property('commit-event', True)
return obj
def cps_get(obj):
RESULT = dict()
key = obj.get()
l = []
cps.get([key], l)
resp_list = convert_cps_raw_list(l)
RESULT["response"] = resp_list
return RESULT
def cps_transaction(obj):
RESULT = dict()
ch = {'operation': obj.get_property('oper'), 'change': obj.get()}
if cps.transaction([ch]):
RESULT["response"] = convert_cps_raw_list([ch['change']])
RESULT["changed"] = True
else:
error_msg = "Transaction error while " + obj.get_property('oper')
raise RuntimeError(error_msg)
return RESULT
def parse_key_data(attrs):
res = dict()
for key, val in iteritems(attrs):
if key == 'cps/key_data':
res.update(val)
else:
res[key] = val
return res
def main():
"""
main entry point for module execution
"""
argument_spec = dict(
qualifier=dict(required=False,
default="target",
type='str',
choices=['target', 'observed', 'proposed', 'realtime',
'registration', 'running', 'startup']),
module_name=dict(required=True, type='str'),
attr_type=dict(required=False, type='dict'),
attr_data=dict(required=True, type='dict'),
operation=dict(required=False,
default="create",
type='str',
choices=['delete', 'create', 'set', 'action', 'get']),
db=dict(required=False, default=False, type='bool'),
commit_event=dict(required=False, default=False, type='bool')
)
module = AnsibleModule(argument_spec=argument_spec,
supports_check_mode=False)
if not HAS_CPS:
module.fail_json(msg='CPS library required for this module')
qualifier = module.params['qualifier']
module_name = module.params['module_name']
attr_type = module.params["attr_type"]
attr_data = module.params["attr_data"]
operation = module.params['operation']
db = module.params["db"]
commit_event = module.params["commit_event"]
RESULT = dict(changed=False, db=False, commit_event=False)
if db:
RESULT['db'] = True
if commit_event:
RESULT['commit_event'] = True
try:
# First do a CPS get operation
get_obj = parse_cps_parameters(module_name, qualifier, attr_type,
attr_data, 'get', db, commit_event)
curr_config = cps_get(get_obj)
if operation == 'get':
RESULT.update(curr_config)
else:
diff = attr_data
# Evaluate the changes in the attributes
cfg = dict()
if curr_config and curr_config['response']:
cfg = curr_config['response'][0]['data']
key_d = 'cps/key_data'
# diff computation is not needed for delete
if operation != 'delete':
configs = parse_key_data(cfg)
attributes = parse_key_data(attr_data)
diff = dict_diff(configs, attributes)
# Append diff with any 'cps/key_data' from attr_data
if diff and key_d in attr_data:
diff[key_d] = attr_data[key_d]
# Append diff with any 'cps/key_data' from curr_config
# Needed for all operations including delete
if diff and key_d in cfg:
if key_d in diff:
diff[key_d].update(cfg[key_d])
else:
diff[key_d] = cfg[key_d]
RESULT.update({"diff": diff})
# Create object for cps operation
obj = parse_cps_parameters(module_name, qualifier, attr_type,
diff, operation, db, commit_event)
res = dict()
if operation == "delete":
if cfg:
res = cps_transaction(obj)
else:
if diff:
res = cps_transaction(obj)
if not res and cfg:
res.update({"response": curr_config['response']})
else:
res.update({"cps_curr_config": curr_config['response']})
RESULT.update(res)
except Exception as e:
module.fail_json(msg=str(type(e).__name__) + ": " + str(e))
module.exit_json(**RESULT)
if __name__ == '__main__':
main()