mirror of
https://github.com/thegeeklab/ansible-later.git
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317 lines
11 KiB
Python
317 lines
11 KiB
Python
#!/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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ANSIBLE_METADATA = {'metadata_version': '1.1',
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'status': ['preview'],
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'supported_by': 'network'}
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DOCUMENTATION = '''
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---
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module: nxos_vxlan_vtep
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extends_documentation_fragment: nxos
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version_added: "2.2"
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short_description: Manages VXLAN Network Virtualization Endpoint (NVE).
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description:
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- Manages VXLAN Network Virtualization Endpoint (NVE) overlay interface
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that terminates VXLAN tunnels.
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author: Gabriele Gerbino (@GGabriele)
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notes:
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- Tested against NXOSv 7.3.(0)D1(1) on VIRL
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- The module is used to manage NVE properties, not to create NVE
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interfaces. Use M(nxos_interface) if you wish to do so.
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- C(state=absent) removes the interface.
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- Default, where supported, restores params default value.
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options:
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interface:
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description:
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- Interface name for the VXLAN Network Virtualization Endpoint.
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required: true
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description:
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description:
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- Description of the NVE interface.
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host_reachability:
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description:
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- Specify mechanism for host reachability advertisement.
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type: bool
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shutdown:
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description:
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- Administratively shutdown the NVE interface.
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type: bool
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source_interface:
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description:
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- Specify the loopback interface whose IP address should be
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used for the NVE interface.
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source_interface_hold_down_time:
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description:
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- Suppresses advertisement of the NVE loopback address until
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the overlay has converged.
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state:
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description:
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- Determines whether the config should be present or not
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on the device.
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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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- nxos_vxlan_vtep:
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interface: nve1
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description: default
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host_reachability: default
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source_interface: Loopback0
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source_interface_hold_down_time: 30
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shutdown: default
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'''
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RETURN = '''
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commands:
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description: commands sent to the device
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returned: always
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type: list
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sample: ["interface nve1", "source-interface loopback0",
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"source-interface hold-down-time 30", "description simple description",
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"shutdown", "host-reachability protocol bgp"]
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'''
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import re
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from ansible.module_utils.network.nxos.nxos import get_config, load_config
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from ansible.module_utils.network.nxos.nxos import nxos_argument_spec, check_args
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from ansible.module_utils.basic import AnsibleModule
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from ansible.module_utils.network.common.config import CustomNetworkConfig
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BOOL_PARAMS = [
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'shutdown',
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'host_reachability'
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]
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PARAM_TO_COMMAND_KEYMAP = {
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'description': 'description',
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'host_reachability': 'host-reachability protocol bgp',
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'interface': 'interface',
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'shutdown': 'shutdown',
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'source_interface': 'source-interface',
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'source_interface_hold_down_time': 'source-interface hold-down-time'
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}
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PARAM_TO_DEFAULT_KEYMAP = {
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'description': False,
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'shutdown': True,
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'source_interface_hold_down_time': '180',
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}
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def get_value(arg, config, module):
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if arg in BOOL_PARAMS:
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REGEX = re.compile(r'\s+{0}\s*$'.format(PARAM_TO_COMMAND_KEYMAP[arg]), re.M)
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NO_SHUT_REGEX = re.compile(r'\s+no shutdown\s*$', re.M)
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value = False
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if arg == 'shutdown':
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try:
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if NO_SHUT_REGEX.search(config):
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value = False
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elif REGEX.search(config):
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value = True
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except TypeError:
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value = False
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else:
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try:
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if REGEX.search(config):
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value = True
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except TypeError:
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value = False
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else:
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REGEX = re.compile(r'(?:{0}\s)(?P<value>.*)$'.format(PARAM_TO_COMMAND_KEYMAP[arg]), re.M)
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NO_DESC_REGEX = re.compile(r'\s+{0}\s*$'.format('no description'), re.M)
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SOURCE_INTF_REGEX = re.compile(r'(?:{0}\s)(?P<value>\S+)$'.format(PARAM_TO_COMMAND_KEYMAP[arg]), re.M)
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value = ''
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if arg == 'description':
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if NO_DESC_REGEX.search(config):
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value = False
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elif PARAM_TO_COMMAND_KEYMAP[arg] in config:
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value = REGEX.search(config).group('value').strip()
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elif arg == 'source_interface':
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for line in config.splitlines():
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try:
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if PARAM_TO_COMMAND_KEYMAP[arg] in config:
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value = SOURCE_INTF_REGEX.search(config).group('value').strip()
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break
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except AttributeError:
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value = ''
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else:
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if PARAM_TO_COMMAND_KEYMAP[arg] in config:
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value = REGEX.search(config).group('value').strip()
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return value
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def get_existing(module, args):
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existing = {}
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netcfg = CustomNetworkConfig(indent=2, contents=get_config(module, flags=['all']))
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interface_string = 'interface {0}'.format(module.params['interface'].lower())
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parents = [interface_string]
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config = netcfg.get_section(parents)
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if config:
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for arg in args:
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existing[arg] = get_value(arg, config, module)
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existing['interface'] = module.params['interface'].lower()
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else:
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if interface_string in str(netcfg):
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existing['interface'] = module.params['interface'].lower()
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for arg in args:
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existing[arg] = ''
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return existing
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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] = 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 fix_commands(commands, module):
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source_interface_command = ''
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no_source_interface_command = ''
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for command in commands:
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if 'no source-interface hold-down-time' in command:
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pass
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elif 'source-interface hold-down-time' in command:
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pass
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elif 'no source-interface' in command:
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no_source_interface_command = command
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elif 'source-interface' in command:
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source_interface_command = command
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if source_interface_command:
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commands.pop(commands.index(source_interface_command))
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commands.insert(0, source_interface_command)
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if no_source_interface_command:
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commands.pop(commands.index(no_source_interface_command))
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commands.append(no_source_interface_command)
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return commands
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def state_present(module, existing, proposed, candidate):
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commands = list()
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proposed_commands = apply_key_map(PARAM_TO_COMMAND_KEYMAP, proposed)
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existing_commands = apply_key_map(PARAM_TO_COMMAND_KEYMAP, existing)
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for key, value in proposed_commands.items():
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if value is True:
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commands.append(key)
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elif value is False:
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commands.append('no {0}'.format(key))
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elif value == 'default':
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if existing_commands.get(key):
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existing_value = existing_commands.get(key)
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commands.append('no {0} {1}'.format(key, existing_value))
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else:
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if key.replace(' ', '_').replace('-', '_') in BOOL_PARAMS:
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commands.append('no {0}'.format(key.lower()))
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module.exit_json(commands=commands)
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else:
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command = '{0} {1}'.format(key, value.lower())
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commands.append(command)
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if commands:
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commands = fix_commands(commands, module)
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parents = ['interface {0}'.format(module.params['interface'].lower())]
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candidate.add(commands, parents=parents)
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else:
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if not existing and module.params['interface']:
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commands = ['interface {0}'.format(module.params['interface'].lower())]
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candidate.add(commands, parents=[])
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def state_absent(module, existing, proposed, candidate):
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commands = ['no interface {0}'.format(module.params['interface'].lower())]
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candidate.add(commands, parents=[])
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def main():
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argument_spec = dict(
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interface=dict(required=True, type='str'),
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description=dict(required=False, type='str'),
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host_reachability=dict(required=False, type='bool'),
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shutdown=dict(required=False, type='bool'),
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source_interface=dict(required=False, type='str'),
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source_interface_hold_down_time=dict(required=False, type='str'),
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state=dict(choices=['present', 'absent'], default='present', required=False),
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)
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argument_spec.update(nxos_argument_spec)
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module = AnsibleModule(argument_spec=argument_spec, supports_check_mode=True)
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warnings = list()
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result = {'changed': False, 'commands': [], 'warnings': warnings}
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check_args(module, warnings)
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state = module.params['state']
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args = PARAM_TO_COMMAND_KEYMAP.keys()
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existing = get_existing(module, args)
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proposed_args = dict((k, v) for k, v in module.params.items()
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if v is not None and k in args)
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proposed = {}
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for key, value in proposed_args.items():
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if key != 'interface':
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if str(value).lower() == 'default':
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value = PARAM_TO_DEFAULT_KEYMAP.get(key)
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if value is None:
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if key in BOOL_PARAMS:
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value = False
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else:
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value = 'default'
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if str(existing.get(key)).lower() != str(value).lower():
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proposed[key] = value
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candidate = CustomNetworkConfig(indent=3)
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if state == 'present':
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if not existing:
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warnings.append("The proposed NVE interface did not exist. "
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"It's recommended to use nxos_interface to create "
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"all logical interfaces.")
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state_present(module, existing, proposed, candidate)
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elif state == 'absent' and existing:
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state_absent(module, existing, proposed, candidate)
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if candidate:
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candidate = candidate.items_text()
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result['commands'] = candidate
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result['changed'] = True
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load_config(module, candidate)
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module.exit_json(**result)
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if __name__ == '__main__':
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main()
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