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community.general/plugins/modules/network/cnos/cnos_interface.py
Ansible Core Team aebc1b03fd Initial commit
2020-03-09 09:11:07 +00:00

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#!/usr/bin/python
# -*- coding: utf-8 -*-
#
# Copyright (C) 2017 Lenovo, Inc.
# (c) 2017, Ansible by 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/>.
#
# Module to work on Interfaces with Lenovo Switches
# Lenovo Networking
#
from __future__ import absolute_import, division, print_function
__metaclass__ = type
ANSIBLE_METADATA = {'metadata_version': '1.1',
'status': ['preview'],
'supported_by': 'community'}
DOCUMENTATION = '''
---
module: cnos_interface
author: "Anil Kumar Muraleedharan(@amuraleedhar)"
short_description: Manage Interface on Lenovo CNOS network devices
description:
- This module provides declarative management of Interfaces
on Lenovo CNOS network devices.
notes:
- Tested against CNOS 10.8.1
options:
name:
description:
- Name of the Interface.
required: true
description:
description:
- Description of Interface.
enabled:
description:
- Interface link status.
type: bool
default: True
speed:
description:
- Interface link speed.
mtu:
description:
- Maximum size of transmit packet.
duplex:
description:
- Interface link status
default: auto
choices: ['full', 'half', 'auto']
tx_rate:
description:
- Transmit rate in bits per second (bps).
- This is state check parameter only.
- Supports conditionals, see L(Conditionals in Networking Modules,
../network/user_guide/network_working_with_command_output.html)
rx_rate:
description:
- Receiver rate in bits per second (bps).
- This is state check parameter only.
- Supports conditionals, see L(Conditionals in Networking Modules,
../network/user_guide/network_working_with_command_output.html)
neighbors:
description:
- Check operational state of given interface C(name) for LLDP neighbor.
- The following suboptions are available.
suboptions:
host:
description:
- "LLDP neighbor host for given interface C(name)."
port:
description:
- "LLDP neighbor port to which interface C(name) is connected."
aggregate:
description: List of Interfaces definitions.
delay:
description:
- Time in seconds to wait before checking for the operational state on
remote device. This wait is applicable for operational state argument
which are I(state) with values C(up)/C(down), I(tx_rate) and I(rx_rate)
default: 20
state:
description:
- State of the Interface configuration, C(up) means present and
operationally up and C(down) means present and operationally C(down)
default: present
choices: ['present', 'absent', 'up', 'down']
provider:
description:
- B(Deprecated)
- "Starting with Ansible 2.5 we recommend using C(connection: network_cli)."
- For more information please see the L(CNOS Platform Options guide, ../network/user_guide/platform_cnos.html).
- HORIZONTALLINE
- A dict object containing connection details.
suboptions:
host:
description:
- Specifies the DNS host name or address for connecting to the remote
device over the specified transport. The value of host is used as
the destination address for the transport.
required: true
port:
description:
- Specifies the port to use when building the connection to the remote device.
default: 22
username:
description:
- Configures the username to use to authenticate the connection to
the remote device. This value is used to authenticate
the SSH session. If the value is not specified in the task, the
value of environment variable C(ANSIBLE_NET_USERNAME) will be used instead.
password:
description:
- Specifies the password to use to authenticate the connection to
the remote device. This value is used to authenticate
the SSH session. If the value is not specified in the task, the
value of environment variable C(ANSIBLE_NET_PASSWORD) will be used instead.
timeout:
description:
- Specifies the timeout in seconds for communicating with the network device
for either connecting or sending commands. If the timeout is
exceeded before the operation is completed, the module will error.
default: 10
ssh_keyfile:
description:
- Specifies the SSH key to use to authenticate the connection to
the remote device. This value is the path to the
key used to authenticate the SSH session. If the value is not specified
in the task, the value of environment variable C(ANSIBLE_NET_SSH_KEYFILE)
will be used instead.
authorize:
description:
- Instructs the module to enter privileged mode on the remote device
before sending any commands. If not specified, the device will
attempt to execute all commands in non-privileged mode. If the value
is not specified in the task, the value of environment variable
C(ANSIBLE_NET_AUTHORIZE) will be used instead.
type: bool
default: 'no'
auth_pass:
description:
- Specifies the password to use if required to enter privileged mode
on the remote device. If I(authorize) is false, then this argument
does nothing. If the value is not specified in the task, the value of
environment variable C(ANSIBLE_NET_AUTH_PASS) will be used instead.
'''
EXAMPLES = """
- name: configure interface
cnos_interface:
name: Ethernet1/33
description: test-interface
speed: 100
duplex: half
mtu: 999
- name: remove interface
cnos_interface:
name: loopback3
state: absent
- name: make interface up
cnos_interface:
name: Ethernet1/33
enabled: True
- name: make interface down
cnos_interface:
name: Ethernet1/33
enabled: False
- name: Check intent arguments
cnos_interface:
name: Ethernet1/33
state: up
tx_rate: ge(0)
rx_rate: le(0)
- name: Check neighbors intent arguments
cnos_interface:
name: Ethernet1/33
neighbors:
- port: eth0
host: netdev
- name: Config + intent
cnos_interface:
name: Ethernet1/33
enabled: False
state: down
- name: Add interface using aggregate
cnos_interface:
aggregate:
- { name: Ethernet1/33, mtu: 256, description: test-interface-1 }
- { name: Ethernet1/44, mtu: 516, description: test-interface-2 }
duplex: full
speed: 100
state: present
- name: Delete interface using aggregate
cnos_interface:
aggregate:
- name: loopback3
- name: loopback6
state: absent
"""
RETURN = """
commands:
description: The list of configuration mode commands to send to the device.
returned: always, except for the platforms that use Netconf transport to
manage the device.
type: list
sample:
- interface Ethernet1/33
- description test-interface
- duplex half
- mtu 512
"""
import re
from copy import deepcopy
from time import sleep
from ansible.module_utils._text import to_text
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils.connection import exec_command
from ansible_collections.community.general.plugins.module_utils.network.cnos.cnos import get_config, load_config
from ansible_collections.community.general.plugins.module_utils.network.cnos.cnos import cnos_argument_spec
from ansible_collections.community.general.plugins.module_utils.network.cnos.cnos import debugOutput, check_args
from ansible_collections.ansible.netcommon.plugins.module_utils.network.common.config import NetworkConfig
from ansible_collections.ansible.netcommon.plugins.module_utils.network.common.utils import conditional
from ansible_collections.ansible.netcommon.plugins.module_utils.network.common.utils import remove_default_spec
def validate_mtu(value, module):
if value and not 64 <= int(value) <= 9216:
module.fail_json(msg='mtu must be between 64 and 9216')
def validate_param_values(module, obj, param=None):
if param is None:
param = module.params
for key in obj:
# validate the param value (if validator func exists)
validator = globals().get('validate_%s' % key)
if callable(validator):
validator(param.get(key), module)
def parse_shutdown(configobj, name):
cfg = configobj['interface %s' % name]
cfg = '\n'.join(cfg.children)
match = re.search(r'^shutdown', cfg, re.M)
if match:
return True
else:
return False
def parse_config_argument(configobj, name, arg=None):
cfg = configobj['interface %s' % name]
cfg = '\n'.join(cfg.children)
match = re.search(r'%s (.+)$' % arg, cfg, re.M)
if match:
return match.group(1)
def search_obj_in_list(name, lst):
for o in lst:
if o['name'] == name:
return o
return None
def add_command_to_interface(interface, cmd, commands):
if interface not in commands:
commands.append(interface)
commands.append(cmd)
def map_config_to_obj(module):
config = get_config(module)
configobj = NetworkConfig(indent=1, contents=config)
match = re.findall(r'^interface (\S+)', config, re.M)
if not match:
return list()
instances = list()
for item in set(match):
obj = {
'name': item,
'description': parse_config_argument(configobj, item, 'description'),
'speed': parse_config_argument(configobj, item, 'speed'),
'duplex': parse_config_argument(configobj, item, 'duplex'),
'mtu': parse_config_argument(configobj, item, 'mtu'),
'disable': True if parse_shutdown(configobj, item) else False,
'state': 'present'
}
instances.append(obj)
return instances
def map_params_to_obj(module):
obj = []
aggregate = module.params.get('aggregate')
if aggregate:
for item in aggregate:
for key in item:
if item.get(key) is None:
item[key] = module.params[key]
validate_param_values(module, item, item)
d = item.copy()
if d['enabled']:
d['disable'] = False
else:
d['disable'] = True
obj.append(d)
else:
params = {
'name': module.params['name'],
'description': module.params['description'],
'speed': module.params['speed'],
'mtu': module.params['mtu'],
'duplex': module.params['duplex'],
'state': module.params['state'],
'delay': module.params['delay'],
'tx_rate': module.params['tx_rate'],
'rx_rate': module.params['rx_rate'],
'neighbors': module.params['neighbors']
}
validate_param_values(module, params)
if module.params['enabled']:
params.update({'disable': False})
else:
params.update({'disable': True})
obj.append(params)
return obj
def map_obj_to_commands(updates):
commands = list()
want, have = updates
args = ('speed', 'description', 'duplex', 'mtu')
for w in want:
name = w['name']
disable = w['disable']
state = w['state']
obj_in_have = search_obj_in_list(name, have)
interface = 'interface ' + name
if state == 'absent' and obj_in_have:
commands.append('no ' + interface)
elif state in ('present', 'up', 'down'):
if obj_in_have:
for item in args:
candidate = w.get(item)
running = obj_in_have.get(item)
if candidate != running:
if candidate:
cmd = item + ' ' + str(candidate)
add_command_to_interface(interface, cmd, commands)
if disable and not obj_in_have.get('disable', False):
add_command_to_interface(interface, 'shutdown', commands)
elif not disable and obj_in_have.get('disable', False):
add_command_to_interface(interface, 'no shutdown', commands)
else:
commands.append(interface)
for item in args:
value = w.get(item)
if value:
commands.append(item + ' ' + str(value))
if disable:
commands.append('no shutdown')
return commands
def check_declarative_intent_params(module, want, result):
failed_conditions = []
have_neighbors_lldp = None
for w in want:
want_state = w.get('state')
want_tx_rate = w.get('tx_rate')
want_rx_rate = w.get('rx_rate')
want_neighbors = w.get('neighbors')
if want_state not in ('up', 'down') and not want_tx_rate and not want_rx_rate and not want_neighbors:
continue
if result['changed']:
sleep(w['delay'])
command = 'show interface %s brief' % w['name']
rc, out, err = exec_command(module, command)
if rc != 0:
module.fail_json(msg=to_text(err, errors='surrogate_then_replace'), command=command, rc=rc)
if want_state in ('up', 'down'):
state_data = out.strip().lower().split(w['name'])
have_state = None
have_state = state_data[1].split()[3]
if have_state is None or not conditional(want_state, have_state.strip()):
failed_conditions.append('state ' + 'eq(%s)' % want_state)
command = 'show interface %s' % w['name']
rc, out, err = exec_command(module, command)
have_tx_rate = None
have_rx_rate = None
rates = out.splitlines()
for s in rates:
s = s.strip()
if 'output rate' in s and 'input rate' in s:
sub = s.split()
if want_tx_rate:
have_tx_rate = sub[8]
if have_tx_rate is None or not conditional(want_tx_rate, have_tx_rate.strip(), cast=int):
failed_conditions.append('tx_rate ' + want_tx_rate)
if want_rx_rate:
have_rx_rate = sub[2]
if have_rx_rate is None or not conditional(want_rx_rate, have_rx_rate.strip(), cast=int):
failed_conditions.append('rx_rate ' + want_rx_rate)
if want_neighbors:
have_host = []
have_port = []
# Process LLDP neighbors
if have_neighbors_lldp is None:
rc, have_neighbors_lldp, err = exec_command(module, 'show lldp neighbors detail')
if rc != 0:
module.fail_json(msg=to_text(err,
errors='surrogate_then_replace'),
command=command, rc=rc)
if have_neighbors_lldp:
lines = have_neighbors_lldp.strip().split('Local Port ID: ')
for line in lines:
field = line.split('\n')
if field[0].strip() == w['name']:
for item in field:
if item.startswith('System Name:'):
have_host.append(item.split(':')[1].strip())
if item.startswith('Port Description:'):
have_port.append(item.split(':')[1].strip())
for item in want_neighbors:
host = item.get('host')
port = item.get('port')
if host and host not in have_host:
failed_conditions.append('host ' + host)
if port and port not in have_port:
failed_conditions.append('port ' + port)
return failed_conditions
def main():
""" main entry point for module execution
"""
neighbors_spec = dict(
host=dict(),
port=dict()
)
element_spec = dict(
name=dict(),
description=dict(),
speed=dict(),
mtu=dict(),
duplex=dict(default='auto', choices=['full', 'half', 'auto']),
enabled=dict(default=True, type='bool'),
tx_rate=dict(),
rx_rate=dict(),
neighbors=dict(type='list', elements='dict', options=neighbors_spec),
delay=dict(default=20, type='int'),
state=dict(default='present',
choices=['present', 'absent', 'up', 'down'])
)
aggregate_spec = deepcopy(element_spec)
aggregate_spec['name'] = dict(required=True)
# remove default in aggregate spec, to handle common arguments
remove_default_spec(aggregate_spec)
argument_spec = dict(
aggregate=dict(type='list', elements='dict', options=aggregate_spec),
)
argument_spec.update(element_spec)
argument_spec.update(cnos_argument_spec)
required_one_of = [['name', 'aggregate']]
mutually_exclusive = [['name', 'aggregate']]
module = AnsibleModule(argument_spec=argument_spec,
required_one_of=required_one_of,
mutually_exclusive=mutually_exclusive,
supports_check_mode=True)
warnings = list()
check_args(module, warnings)
result = {'changed': False}
if warnings:
result['warnings'] = warnings
want = map_params_to_obj(module)
have = map_config_to_obj(module)
commands = map_obj_to_commands((want, have))
result['commands'] = commands
if commands:
if not module.check_mode:
load_config(module, commands)
result['changed'] = True
failed_conditions = check_declarative_intent_params(module, want, result)
if failed_conditions:
msg = 'One or more conditional statements have not been satisfied'
module.fail_json(msg=msg, failed_conditions=failed_conditions)
module.exit_json(**result)
if __name__ == '__main__':
main()
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