308 lines
9.8 KiB
Python
308 lines
9.8 KiB
Python
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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_vrf_interface
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version_added: "2.1"
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short_description: Manages interface specific VRF configuration
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description:
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- Manages interface specific VRF configuration
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extends_documentation_fragment: nxos
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author: Jason Edelman (@jedelman8), Gabriele Gerbino (@GGabriele)
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notes:
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- VRF needs to be added globally with M(nxos_vrf) before
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adding a VRF to an interface
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- Remove a VRF from an interface will still remove
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all L3 attributes just as it does from CLI
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- VRF is not read from an interface until IP address is
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configured on that interface
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options:
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vrf:
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description:
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- Name of VRF to be managed
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required: true
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interface:
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description:
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- Full name of interface to be managed, i.e. Ethernet1/1
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required: true
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state:
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description:
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- Manages desired state of the resource
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required: false
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default: present
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choices: ['present','absent']
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'''
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EXAMPLES = '''
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# ensure vrf ntc exists on Eth1/1
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- nxos_vrf_interface: vrf=ntc interface=Ethernet1/1 host={{ inventory_hostname }} state=present
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# ensure ntc VRF does not exist on Eth1/1
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- nxos_vrf_interface: vrf=ntc interface=Ethernet1/1 host={{ inventory_hostname }} state=absent
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'''
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RETURN = '''
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proposed:
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description: k/v pairs of parameters passed into module
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returned: always
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type: dict
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sample: {"interface": "loopback16", "vrf": "ntc"}
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existing:
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description: k/v pairs of existing vrf on the interface
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type: dict
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sample: {"interface": "loopback16", "vrf": ""}
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end_state:
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description: k/v pairs of vrf after module execution
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returned: always
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type: dict
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sample: {"interface": "loopback16", "vrf": "ntc"}
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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: "present"
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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: "interface loopback16 ; vrf member ntc ;"
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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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'''
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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_vrf_interface(command, response, module):
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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. As such,
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we assume if '^' is found in response, it is an invalid command. Instead,
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the output will be a raw string when issuing commands containing 'show run'.
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"""
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if '^' in response[0]:
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body = []
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elif 'show run' in command:
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body = response
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else:
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body = [json.loads(response[0])]
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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(command),
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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_vrf_interface(command, response, module)
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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 get_interface_type(interface):
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if interface.upper().startswith('ET'):
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return 'ethernet'
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elif interface.upper().startswith('VL'):
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return 'svi'
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elif interface.upper().startswith('LO'):
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return 'loopback'
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elif interface.upper().startswith('MG'):
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return 'management'
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elif interface.upper().startswith('MA'):
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return 'management'
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elif interface.upper().startswith('PO'):
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return 'portchannel'
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else:
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return 'unknown'
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def get_interface_mode(interface, intf_type, module):
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command = 'show interface {0}'.format(interface)
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interface = {}
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mode = 'unknown'
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if intf_type in ['ethernet', 'portchannel']:
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body = execute_show_command(command, module)[0]
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interface_table = body['TABLE_interface']['ROW_interface']
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mode = str(interface_table.get('eth_mode', 'layer3'))
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if mode == 'access' or mode == 'trunk':
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mode = 'layer2'
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elif intf_type == 'loopback' or intf_type == 'svi':
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mode = 'layer3'
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return mode
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def get_vrf_list(module):
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command = 'show vrf all'
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vrf_list = []
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body = execute_show_command(command, module)[0]
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try:
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vrf_table = body['TABLE_vrf']['ROW_vrf']
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except (KeyError, AttributeError):
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return vrf_list
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for each in vrf_table:
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vrf_list.append(str(each['vrf_name']))
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return vrf_list
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def get_interface_info(interface, module):
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command = 'show run interface {0}'.format(interface)
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vrf_regex = ".*vrf\s+member\s+(?P<vrf>\S+).*"
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try:
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body = execute_show_command(command, module,
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command_type='cli_show_ascii')[0]
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match_vrf = re.match(vrf_regex, body, re.DOTALL)
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group_vrf = match_vrf.groupdict()
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vrf = group_vrf["vrf"]
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except AttributeError:
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return ""
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return vrf
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def is_default(interface, module):
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command = 'show run interface {0}'.format(interface)
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try:
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body = execute_show_command(command, module,
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command_type='cli_show_ascii')[0]
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raw_list = body.split('\n')
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if raw_list[-1].startswith('interface'):
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return True
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else:
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return False
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except (KeyError, IndexError):
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return 'DNE'
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def main():
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argument_spec = dict(
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vrf=dict(required=True),
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interface=dict(type='str', required=True),
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state=dict(default='present', choices=['present', 'absent'],
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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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vrf = module.params['vrf']
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interface = module.params['interface'].lower()
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state = module.params['state']
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current_vrfs = get_vrf_list(module)
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if vrf not in current_vrfs:
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module.fail_json(msg="Ensure the VRF you're trying to config/remove on"
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" an interface is created globally on the device"
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" first.")
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intf_type = get_interface_type(interface)
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if (intf_type != 'ethernet' and module.params['transport'] == 'cli'):
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if is_default(interface, module) == 'DNE':
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module.fail_json(msg="interface does not exist on switch. Verify "
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"switch platform or create it first with "
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"nxos_interface if it's a logical interface")
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mode = get_interface_mode(interface, intf_type, module)
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if mode == 'layer2':
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module.fail_json(msg='Ensure interface is a Layer 3 port before '
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'configuring a VRF on an interface. You can '
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'use nxos_interface')
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proposed = dict(interface=interface, vrf=vrf)
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current_vrf = get_interface_info(interface, module)
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existing = dict(interface=interface, vrf=current_vrf)
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changed = False
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end_state = existing
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if vrf != existing['vrf'] and state == 'absent':
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module.fail_json(msg='The VRF you are trying to remove '
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'from the interface does not exist '
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'on that interface.',
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interface=interface, proposed_vrf=vrf,
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existing_vrf=existing['vrf'])
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commands = []
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if existing:
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if state == 'absent':
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if existing and vrf == existing['vrf']:
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command = 'no vrf member {0}'.format(vrf)
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commands.append(command)
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elif state == 'present':
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if existing['vrf'] != vrf:
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command = 'vrf member {0}'.format(vrf)
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commands.append(command)
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if commands:
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commands.insert(0, 'interface {0}'.format(interface))
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if commands:
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if module.check_mode:
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module.exit_json(changed=True, commands=commands)
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else:
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execute_config_command(commands, module)
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changed = True
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changed_vrf = get_interface_info(interface, module)
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end_state = dict(interface=interface, vrf=changed_vrf)
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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'] = commands
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results['changed'] = changed
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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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