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

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#!/usr/bin/python
#
# (c) 2018 Extreme Networks 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
ANSIBLE_METADATA = {'metadata_version': '1.1',
'status': ['preview'],
'supported_by': 'community'}
DOCUMENTATION = '''
---
module: slxos_interface
author: "Lindsay Hill (@LindsayHill)"
short_description: Manage Interfaces on Extreme SLX-OS network devices
description:
- This module provides declarative management of Interfaces
on Extreme SLX-OS network devices.
notes:
- Tested against SLX-OS 17s.1.02
options:
name:
description:
- Name of the Interface.
required: true
description:
description:
- Description of Interface.
enabled:
description:
- Interface link status.
default: True
type: bool
speed:
description:
- Interface link speed.
mtu:
description:
- Maximum size of transmit packet.
tx_rate:
description:
- Transmit rate in bits per second (bps).
rx_rate:
description:
- Receiver rate in bits per second (bps).
neighbors:
description:
- Check the 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 given 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: 10
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']
'''
EXAMPLES = """
- name: configure interface
slxos_interface:
name: Ethernet 0/2
description: test-interface
speed: 1000
mtu: 9216
- name: remove interface
slxos_interface:
name: Loopback 9
state: absent
- name: make interface up
slxos_interface:
name: Ethernet 0/2
enabled: True
- name: make interface down
slxos_interface:
name: Ethernet 0/2
enabled: False
- name: Check intent arguments
slxos_interface:
name: Ethernet 0/2
state: up
tx_rate: ge(0)
rx_rate: le(0)
- name: Check neighbors intent arguments
slxos_interface:
name: Ethernet 0/41
neighbors:
- port: Ethernet 0/41
host: SLX
- name: Config + intent
slxos_interface:
name: Ethernet 0/2
enabled: False
state: down
- name: Add interface using aggregate
slxos_interface:
aggregate:
- { name: Ethernet 0/1, mtu: 1548, description: test-interface-1 }
- { name: Ethernet 0/2, mtu: 1548, description: test-interface-2 }
speed: 10000
state: present
- name: Delete interface using aggregate
slxos_interface:
aggregate:
- name: Loopback 9
- name: Loopback 10
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 Ethernet 0/2
- description test-interface
- mtu 1548
"""
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.slxos.slxos import get_config, load_config
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, remove_default_spec
def validate_mtu(value, module):
if value and not 1548 <= int(value) <= 9216:
module.fail_json(msg='mtu must be between 1548 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+ \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'),
'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'],
'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', '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 = 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' % 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'):
match = re.search(r'%s (\w+)' % 'line protocol is', out, re.M)
have_state = None
if match:
have_state = match.group(1)
if have_state is None or not conditional(want_state, have_state.strip()):
failed_conditions.append('state ' + 'eq(%s)' % want_state)
if want_tx_rate:
match = re.search(r'%s (\d+)' % 'Output', out, re.M)
have_tx_rate = None
if match:
have_tx_rate = match.group(1)
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:
match = re.search(r'%s (\d+)' % 'Input', out, re.M)
have_rx_rate = None
if match:
have_rx_rate = match.group(1)
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 = []
if have_neighbors is None:
rc, have_neighbors, 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:
lines = have_neighbors.strip().split('Local Interface: ')
short_name = w['name'].replace('Ethernet', 'Eth')
for line in lines:
field = line.split('\n')
if field[0].split('(')[0].strip() == short_name:
for item in field:
if item.startswith('System Name:'):
have_host.append(item.split(':')[1].strip())
if item.startswith('Remote Interface:'):
have_port.append(item.split(':')[1].split('(')[0].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(),
enabled=dict(default=True, type='bool'),
tx_rate=dict(),
rx_rate=dict(),
neighbors=dict(type='list', elements='dict', options=neighbors_spec),
delay=dict(default=10, 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)
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()
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, changed=result['changed'])
module.exit_json(**result)
if __name__ == '__main__':
main()
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