Addng nxos_feature
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GGabriele
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network/nxos/nxos_feature.py
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network/nxos/nxos_feature.py
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#!/usr/bin/python
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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#
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DOCUMENTATION = '''
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---
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module: nxos_feature
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version_added: "2.1"
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short_description: Manage features in NX-OS switches
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description:
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- Offers ability to enable and disable features in NX-OS
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extends_documentation_fragment: nxos
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author: Jason Edelman (@jedelman8), Gabriele Gerbino (@GGabriele)
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options:
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feature:
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description:
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- Name of feature
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required: true
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state:
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description:
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- Desired state of the feature
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required: false
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default: 'enabled'
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choices: ['enabled','disabled']
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'''
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EXAMPLES = '''
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# Ensure lacp is enabled
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- nxos_feature: feature=lacp state=enabled host={{ inventory_hostname }}
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# Ensure ospf is disabled
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- nxos_feature: feature=ospf state=disabled host={{ inventory_hostname }}
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# Ensure vpc is enabled
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- nxos_feature: feature=vpc state=enabled host={{ inventory_hostname }}
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'''
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RETURN = '''
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proposed:
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description: proposed feature state
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returned: always
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type: dict
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sample: {"state": "disabled"}
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existing:
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description: existing state of feature
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returned: always
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type: dict
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sample: {"state": "enabled"}
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end_state:
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description: feature state after executing module
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returned: always
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type: dict
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sample: {"state": "disabled"}
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state:
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description: state as sent in from the playbook
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returned: always
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type: string
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sample: "disabled"
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commands:
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description: command string sent to the device
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returned: always
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type: string
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sample: "no feature eigrp ;"
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changed:
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description: check to see if a change was made on the device
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returned: always
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type: boolean
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sample: true
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feature:
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description: the feature that has been examined
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returned: always
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type: string
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sample: "vpc"
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'''
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def execute_config_command(commands, module):
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try:
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module.configure(commands)
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except ShellError, clie:
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module.fail_json(msg='Error sending CLI commands',
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error=str(clie), commands=commands)
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def get_cli_body_ssh(command, response):
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"""Get response for when transport=cli. This is kind of a hack and mainly
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needed because these modules were originally written for NX-API. And
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not every command supports "| json" when using cli/ssh. As such, we assume
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if | json returns an XML string, it is a valid command, but that the
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resource doesn't exist yet.
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"""
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if 'xml' in response[0]:
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body = []
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else:
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try:
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body = [json.loads(response[0])]
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except ValueError:
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module.fail_json(msg='Command does not support JSON output',
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command=command)
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return body
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def execute_show(cmds, module, command_type=None):
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try:
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response = module.execute(cmds,
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command_type=command_type) if command_type else module.execute(cmds)
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except ShellError, clie:
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module.fail_json(msg='Error sending {0}'.format(cmds),
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error=str(clie))
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return response
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def execute_show_command(command, module, command_type='cli_show'):
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if module.params['transport'] == 'cli':
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command += ' | json'
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cmds = [command]
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response = execute_show(cmds, module)
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body = get_cli_body_ssh(command, response)
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elif module.params['transport'] == 'nxapi':
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cmds = [command]
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body = execute_show(cmds, module, command_type=command_type)
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return body
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def apply_key_map(key_map, table):
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new_dict = {}
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for key, value in table.items():
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new_key = key_map.get(key)
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if new_key:
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value = table.get(key)
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if value:
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new_dict[new_key] = str(value)
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else:
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new_dict[new_key] = value
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return new_dict
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def get_available_features(feature, module):
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available_features = {}
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command = 'show feature'
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body = execute_show_command(command, module)
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try:
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body = body[0]['TABLE_cfcFeatureCtrlTable']['ROW_cfcFeatureCtrlTable']
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except (TypeError, IndexError):
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return available_features
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for each_feature in body:
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feature = each_feature['cfcFeatureCtrlName2']
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state = each_feature['cfcFeatureCtrlOpStatus2']
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if 'enabled' in state:
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state = 'enabled'
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if feature not in available_features.keys():
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available_features[feature] = state
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else:
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if (available_features[feature] == 'disabled' and
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state == 'enabled'):
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available_features[feature] = state
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return available_features
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def get_commands(proposed, existing, state, module):
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feature = validate_feature(module, mode='config')
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commands = []
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feature_check = proposed == existing
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if not feature_check:
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if state == 'enabled':
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command = 'feature {0}'.format(feature)
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commands.append(command)
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elif state == 'disabled':
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command = "no feature {0}".format(feature)
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commands.append(command)
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return commands
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def validate_feature(module, mode='show'):
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'''Some features may need to be mapped due to inconsistency
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between how they appear from "show feature" output and
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how they are configured'''
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feature = module.params['feature']
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feature_to_be_mapped = {
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'show': {
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'nv overlay': 'nve'},
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'config':
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{
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'nve': 'nv overlay'}
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}
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if feature in feature_to_be_mapped[mode]:
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feature = feature_to_be_mapped[mode][feature]
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return feature
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def main():
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argument_spec = dict(
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feature=dict(type='str', required=True),
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state=dict(choices=['enabled', 'disabled'], default='enabled',
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required=False),
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)
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module = get_module(argument_spec=argument_spec,
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supports_check_mode=True)
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feature = validate_feature(module)
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state = module.params['state'].lower()
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available_features = get_available_features(feature, module)
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if feature not in available_features.keys():
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module.fail_json(
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msg='Invalid feature name.',
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features_currently_supported=available_features,
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invalid_feature=feature)
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else:
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existstate = available_features[feature]
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existing = dict(state=existstate)
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proposed = dict(state=state)
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changed = False
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end_state = existing
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cmds = get_commands(proposed, existing, state, module)
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if cmds:
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if module.check_mode:
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module.exit_json(changed=True, commands=cmds)
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else:
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execute_config_command(cmds, module)
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changed = True
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updated_features = get_available_features(feature, module)
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existstate = updated_features[feature]
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end_state = dict(state=existstate)
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results = {}
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results['proposed'] = proposed
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results['existing'] = existing
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results['end_state'] = end_state
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results['state'] = state
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results['updates'] = cmds
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results['changed'] = changed
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results['feature'] = module.params['feature']
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module.exit_json(**results)
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from ansible.module_utils.basic import *
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from ansible.module_utils.urls import *
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from ansible.module_utils.shell import *
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from ansible.module_utils.netcfg import *
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from ansible.module_utils.nxos import *
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if __name__ == '__main__':
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main()
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