259 lines
9 KiB
Python
259 lines
9 KiB
Python
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2013, Arista Networks <netdevops@aristanetworks.com>
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#
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# This program 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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# This program 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 this program. 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: arista_interface
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version_added: "1.3"
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author: Peter Sprygada
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short_description: Manage physical Ethernet interfaces
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requirements:
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- Arista EOS 4.10
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- Netdev extension for EOS
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description:
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- Manage physical Ethernet interface resources on Arista EOS network devices
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options:
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interface_id:
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description:
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- the full name of the interface
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required: true
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logging:
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description:
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- enables or disables the syslog facility for this module
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required: false
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default: false
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choices: [ 'true', 'false', 'yes', 'no' ]
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admin:
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description:
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- controls the operational state of the interface
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required: false
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choices: [ 'up', 'down' ]
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description:
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description:
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- a single line text string describing the interface
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required: false
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mtu:
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description:
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- configureds the maximum transmission unit for the interface
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required: false
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default: 1500
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speed:
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description:
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- sets the interface speed setting
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required: false
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default: 'auto'
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choices: [ 'auto', '100m', '1g', '10g' ]
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duplex:
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description:
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- sets the interface duplex setting
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required: false
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default: 'auto'
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choices: [ 'auto', 'half', 'full' ]
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notes:
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- Requires EOS 4.10 or later
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- The Netdev extension for EOS must be installed and active in the
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available extensions (show extensions from the EOS CLI)
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- See http://eos.aristanetworks.com for details
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'''
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EXAMPLES = '''
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Example playbook entries using the arista_interface module to manage resource
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state. Note that interface names must be the full interface name not shortcut
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names (ie Ethernet, not Et1)
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tasks:
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- name: enable interface Ethernet 1
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action: arista_interface interface_id=Ethernet1 admin=up speed=10g duplex=full logging=true
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- name: set mtu on Ethernet 1
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action: arista_interface interface_id=Ethernet1 mtu=1600 speed=10g duplex=full logging=true
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- name: reset changes to Ethernet 1
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action: arista_interface interface_id=Ethernet1 admin=down mtu=1500 speed=10g duplex=full logging=true
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'''
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import syslog
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import json
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class AristaInterface(object):
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""" This is the base class for managing physcial Ethernet interface
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resources in EOS network devices. This class acts as a wrapper around
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the netdev extension in EOS. You must have the netdev extension
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installed in order for this module to work properly.
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The following commands are implemented in this module:
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* netdev interface list
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* netdev interface show
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* netdev interface edit
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* netdev interface delete
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This module only allows for the management of physical Ethernet
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interfaces.
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"""
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attributes = ['interface_id', 'admin', 'description', 'mtu', 'speed', 'duplex']
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def __init__(self, module):
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self.module = module
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self.interface_id = module.params['interface_id']
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self.admin = module.params['admin']
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self.description = module.params['description']
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self.mtu = module.params['mtu']
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self.speed = module.params['speed']
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self.duplex = module.params['duplex']
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self.logging = module.params['logging']
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@property
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def changed(self):
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""" The changed property provides a boolean response if the currently
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loaded resouces has changed from the resource running in EOS.
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Returns True if the object is not in sync
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Returns False if the object is in sync.
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"""
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return len(self.updates()) > 0
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def log(self, entry):
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""" This method is responsible for sending log messages to the local
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syslog.
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"""
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if self.logging:
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syslog.openlog('ansible-%s' % os.path.basename(__file__))
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syslog.syslog(syslog.LOG_NOTICE, entry)
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def run_command(self, cmd):
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""" Calls the Ansible module run_command method. This method will
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directly return the results of the run_command method
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"""
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self.log(cmd)
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return self.module.run_command(cmd.split())
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def get(self):
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""" This method will return a dictionary with the attributes of the
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physical ethernet interface resource specified in interface_id.
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The physcial ethernet interface resource has the following
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stucture:
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{
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"interface_id": <interface_id>,
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"description": <description>,
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"admin": [up | down],
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"mtu": <mtu>,
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"speed": [auto | 100m | 1g | 10g]
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"duplex": [auto | half | full]
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}
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If the physical ethernet interface specified by interface_id does
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not exist in the system, this method will return None.
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"""
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cmd = "netdev interface show %s" % self.interface_id
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(rc, out, err) = self.run_command(cmd)
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obj = json.loads(out)
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if obj.get('status') != 200:
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return None
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return obj['result']
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def update(self):
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""" Updates an existing physical ethernet resource in the current
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running configuration. If the physical ethernet resource does
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not exist, this method will return an error.
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This method implements the following commands:
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* netdev interface edit {interface_id} [attributes]
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Returns an updated physical ethernet interafce resoure if the
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update method was successful
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"""
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attribs = list()
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for attrib in self.updates():
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attribs.append("--%s" % attrib)
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attribs.append(str(getattr(self, attrib)))
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if attribs:
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cmd = "netdev interface edit %s " % self.interface_id
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cmd += " ".join(attribs)
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(rc, out, err) = self.run_command(cmd)
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resp = json.loads(out)
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if resp.get('status') != 200:
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rc = int(resp['status'])
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err = resp['message']
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out = None
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else:
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out = resp['result']
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return (rc, out, err)
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return (0, None, "No attributes have been modified")
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def updates(self):
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""" This method will check the current phy resource in the running
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configuration and return a list of attribute that are not in sync
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with the current resource from the running configuration.
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"""
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obj = self.get()
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update = lambda a, z: a != z
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updates = list()
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for attrib in self.attributes:
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value = getattr(self, attrib)
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if update(obj[attrib], value) and value is not None:
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updates.append(attrib)
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self.log("updates: %s" % updates)
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return updates
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def main():
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module = AnsibleModule(
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argument_spec = dict(
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interface_id=dict(default=None, type='str'),
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admin=dict(default=None, choices=['up', 'down'], type='str'),
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description=dict(default=None, type='str'),
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mtu=dict(default=None, type='int'),
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speed=dict(default=None, choices=['auto', '100m', '1g', '10g']),
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duplex=dict(default=None, choices=['auto', 'half', 'full']),
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logging=dict(default=False, type='bool')
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),
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supports_check_mode = True
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)
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obj = AristaInterface(module)
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rc = None
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result = dict()
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if module.check_mode:
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module.exit_json(changed=obj.changed)
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else:
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if obj.changed:
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(rc, out, err) = obj.update()
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result['results'] = out
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if rc is not None and rc != 0:
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module.fail_json(msg=err, rc=rc)
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if rc is None:
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result['changed'] = False
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else:
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result['changed'] = True
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module.exit_json(**result)
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# import module snippets
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from ansible.module_utils.basic import *
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main()
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