ansible-later/env_27/lib/python2.7/site-packages/ansible/modules/network/nxos/nxos_vxlan_vtep_vni.py
2019-04-11 13:00:36 +02:00

369 lines
14 KiB
Python

#!/usr/bin/python
#
# 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/>.
#
ANSIBLE_METADATA = {'metadata_version': '1.1',
'status': ['preview'],
'supported_by': 'network'}
DOCUMENTATION = '''
---
module: nxos_vxlan_vtep_vni
extends_documentation_fragment: nxos
version_added: "2.2"
short_description: Creates a Virtual Network Identifier member (VNI)
description:
- Creates a Virtual Network Identifier member (VNI) for an NVE
overlay interface.
author: Gabriele Gerbino (@GGabriele)
notes:
- Tested against NXOSv 7.3.(0)D1(1) on VIRL
- default, where supported, restores params default value.
options:
interface:
description:
- Interface name for the VXLAN Network Virtualization Endpoint.
required: true
vni:
description:
- ID of the Virtual Network Identifier.
required: true
assoc_vrf:
description:
- This attribute is used to identify and separate processing VNIs
that are associated with a VRF and used for routing. The VRF
and VNI specified with this command must match the configuration
of the VNI under the VRF.
type: bool
ingress_replication:
description:
- Specifies mechanism for host reachability advertisement.
choices: ['bgp','static', 'default']
multicast_group:
description:
- The multicast group (range) of the VNI. Valid values are
string and keyword 'default'.
peer_list:
description:
- Set the ingress-replication static peer list. Valid values
are an array, a space-separated string of ip addresses,
or the keyword 'default'.
suppress_arp:
description:
- Suppress arp under layer 2 VNI.
type: bool
state:
description:
- Determines whether the config should be present or not
on the device.
default: present
choices: ['present','absent']
'''
EXAMPLES = '''
- nxos_vxlan_vtep_vni:
interface: nve1
vni: 6000
ingress_replication: default
'''
RETURN = '''
commands:
description: commands sent to the device
returned: always
type: list
sample: ["interface nve1", "member vni 6000"]
'''
import re
from ansible.module_utils.network.nxos.nxos import get_config, load_config
from ansible.module_utils.network.nxos.nxos import nxos_argument_spec, check_args
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils.network.common.config import CustomNetworkConfig
BOOL_PARAMS = [
'assoc_vrf',
'suppress_arp',
]
PARAM_TO_DEFAULT_KEYMAP = {
'multicast_group': '',
'peer_list': [],
'ingress_replication': '',
}
PARAM_TO_COMMAND_KEYMAP = {
'assoc_vrf': 'associate-vrf',
'interface': 'interface',
'vni': 'member vni',
'ingress_replication': 'ingress-replication protocol',
'multicast_group': 'mcast-group',
'peer_list': 'peer-ip',
'suppress_arp': 'suppress-arp'
}
def get_value(arg, config, module):
command = PARAM_TO_COMMAND_KEYMAP[arg]
command_val_re = re.compile(r'(?:{0}\s)(?P<value>.*)$'.format(command), re.M)
if arg in BOOL_PARAMS:
command_re = re.compile(r'\s+{0}\s*$'.format(command), re.M)
value = False
if command_re.search(config):
value = True
elif arg == 'peer_list':
has_command_val = command_val_re.findall(config, re.M)
value = []
if has_command_val:
value = has_command_val
else:
value = ''
has_command_val = command_val_re.search(config, re.M)
if has_command_val:
value = has_command_val.group('value')
return value
def check_interface(module, netcfg):
config = str(netcfg)
has_interface = re.search(r'(?:interface nve)(?P<value>.*)$', config, re.M)
value = ''
if has_interface:
value = 'nve{0}'.format(has_interface.group('value'))
return value
def get_existing(module, args):
existing = {}
netcfg = CustomNetworkConfig(indent=2, contents=get_config(module))
interface_exist = check_interface(module, netcfg)
if interface_exist:
parents = ['interface {0}'.format(interface_exist)]
temp_config = netcfg.get_section(parents)
if 'member vni {0} associate-vrf'.format(module.params['vni']) in temp_config:
parents.append('member vni {0} associate-vrf'.format(module.params['vni']))
config = netcfg.get_section(parents)
elif "member vni {0}".format(module.params['vni']) in temp_config:
parents.append('member vni {0}'.format(module.params['vni']))
config = netcfg.get_section(parents)
else:
config = {}
if config:
for arg in args:
if arg not in ['interface', 'vni']:
existing[arg] = get_value(arg, config, module)
existing['interface'] = interface_exist
existing['vni'] = module.params['vni']
return existing, interface_exist
def apply_key_map(key_map, table):
new_dict = {}
for key, value in table.items():
new_key = key_map.get(key)
if new_key:
new_dict[new_key] = value
return new_dict
def state_present(module, existing, proposed, candidate):
commands = list()
proposed_commands = apply_key_map(PARAM_TO_COMMAND_KEYMAP, proposed)
existing_commands = apply_key_map(PARAM_TO_COMMAND_KEYMAP, existing)
for key, value in proposed_commands.items():
if key == 'associate-vrf':
command = 'member vni {0} {1}'.format(module.params['vni'], key)
if not value:
command = 'no {0}'.format(command)
commands.append(command)
elif key == 'peer-ip' and value != []:
for peer in value:
commands.append('{0} {1}'.format(key, peer))
elif key == 'mcast-group' and value != existing_commands.get(key):
commands.append('no {0}'.format(key))
vni_command = 'member vni {0}'.format(module.params['vni'])
if vni_command not in commands:
commands.append('member vni {0}'.format(module.params['vni']))
if value != PARAM_TO_DEFAULT_KEYMAP.get('multicast_group', 'default'):
commands.append('{0} {1}'.format(key, value))
elif key == 'ingress-replication protocol' and value != existing_commands.get(key):
evalue = existing_commands.get(key)
dvalue = PARAM_TO_DEFAULT_KEYMAP.get('ingress_replication', 'default')
if value != dvalue:
if evalue and evalue != dvalue:
commands.append('no {0} {1}'.format(key, evalue))
commands.append('{0} {1}'.format(key, value))
else:
if evalue:
commands.append('no {0} {1}'.format(key, evalue))
elif value is True:
commands.append(key)
elif value is False:
commands.append('no {0}'.format(key))
elif value == 'default' or value == []:
if existing_commands.get(key):
existing_value = existing_commands.get(key)
if key == 'peer-ip':
for peer in existing_value:
commands.append('no {0} {1}'.format(key, peer))
else:
commands.append('no {0} {1}'.format(key, existing_value))
else:
if key.replace(' ', '_').replace('-', '_') in BOOL_PARAMS:
commands.append('no {0}'.format(key.lower()))
else:
command = '{0} {1}'.format(key, value.lower())
commands.append(command)
if commands:
vni_command = 'member vni {0}'.format(module.params['vni'])
ingress_replications_command = 'ingress-replication protocol static'
ingress_replicationb_command = 'ingress-replication protocol bgp'
ingress_replicationns_command = 'no ingress-replication protocol static'
ingress_replicationnb_command = 'no ingress-replication protocol bgp'
interface_command = 'interface {0}'.format(module.params['interface'])
if any(c in commands for c in (ingress_replications_command, ingress_replicationb_command,
ingress_replicationnb_command, ingress_replicationns_command)):
static_level_cmds = [cmd for cmd in commands if 'peer' in cmd]
parents = [interface_command, vni_command]
for cmd in commands:
parents.append(cmd)
candidate.add(static_level_cmds, parents=parents)
commands = [cmd for cmd in commands if 'peer' not in cmd]
elif 'peer-ip' in commands[0]:
static_level_cmds = [cmd for cmd in commands]
parents = [interface_command, vni_command, ingress_replications_command]
candidate.add(static_level_cmds, parents=parents)
if vni_command in commands:
parents = [interface_command]
commands.remove(vni_command)
if module.params['assoc_vrf'] is None:
parents.append(vni_command)
candidate.add(commands, parents=parents)
def state_absent(module, existing, proposed, candidate):
if existing['assoc_vrf']:
commands = ['no member vni {0} associate-vrf'.format(
module.params['vni'])]
else:
commands = ['no member vni {0}'.format(module.params['vni'])]
parents = ['interface {0}'.format(module.params['interface'])]
candidate.add(commands, parents=parents)
def main():
argument_spec = dict(
interface=dict(required=True, type='str'),
vni=dict(required=True, type='str'),
assoc_vrf=dict(required=False, type='bool'),
multicast_group=dict(required=False, type='str'),
peer_list=dict(required=False, type='list'),
suppress_arp=dict(required=False, type='bool'),
ingress_replication=dict(required=False, type='str', choices=['bgp', 'static', 'default']),
state=dict(choices=['present', 'absent'], default='present', required=False),
)
argument_spec.update(nxos_argument_spec)
module = AnsibleModule(argument_spec=argument_spec, supports_check_mode=True)
warnings = list()
check_args(module, warnings)
result = {'changed': False, 'commands': [], 'warnings': warnings}
if module.params['assoc_vrf']:
mutually_exclusive_params = ['multicast_group',
'suppress_arp',
'ingress_replication']
for param in mutually_exclusive_params:
if module.params[param]:
module.fail_json(msg='assoc_vrf cannot be used with '
'{0} param'.format(param))
if module.params['peer_list']:
if module.params['peer_list'][0] != 'default' and module.params['ingress_replication'] != 'static':
module.fail_json(msg='ingress_replication=static is required '
'when using peer_list param')
else:
peer_list = module.params['peer_list']
if peer_list[0] == 'default':
module.params['peer_list'] = 'default'
else:
stripped_peer_list = map(str.strip, peer_list)
module.params['peer_list'] = stripped_peer_list
state = module.params['state']
args = PARAM_TO_COMMAND_KEYMAP.keys()
existing, interface_exist = get_existing(module, args)
if state == 'present':
if not interface_exist:
module.fail_json(msg="The proposed NVE interface does not exist. Use nxos_interface to create it first.")
elif interface_exist != module.params['interface']:
module.fail_json(msg='Only 1 NVE interface is allowed on the switch.')
elif state == 'absent':
if interface_exist != module.params['interface']:
module.exit_json(**result)
elif existing and existing['vni'] != module.params['vni']:
module.fail_json(
msg="ERROR: VNI delete failed: Could not find vni node for {0}".format(module.params['vni']),
existing_vni=existing['vni']
)
proposed_args = dict((k, v) for k, v in module.params.items()
if v is not None and k in args)
proposed = {}
for key, value in proposed_args.items():
if key in ['multicast_group', 'peer_list', 'ingress_replication']:
if str(value).lower() == 'default':
value = PARAM_TO_DEFAULT_KEYMAP.get(key, 'default')
if key != 'interface' and existing.get(key) != value:
proposed[key] = value
candidate = CustomNetworkConfig(indent=3)
if state == 'present':
state_present(module, existing, proposed, candidate)
elif existing and state == 'absent':
state_absent(module, existing, proposed, candidate)
if candidate:
candidate = candidate.items_text()
result['changed'] = True
result['commands'] = candidate
if not module.check_mode:
load_config(module, candidate)
module.exit_json(**result)
if __name__ == '__main__':
main()