387 lines
11 KiB
Python
387 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_vlan
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extends_documentation_fragment: nxos
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version_added: "2.1"
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short_description: Manages VLAN resources and attributes.
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description:
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- Manages VLAN configurations on NX-OS switches.
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author: Jason Edelman (@jedelman8)
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options:
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vlan_id:
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description:
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- Single VLAN ID.
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required: false
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default: null
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vlan_range:
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description:
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- Range of VLANs such as 2-10 or 2,5,10-15, etc.
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required: false
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default: null
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name:
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description:
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- Name of VLAN.
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required: false
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default: null
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vlan_state:
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description:
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- Manage the vlan operational state of the VLAN
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(equivalent to state {active | suspend} command.
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required: false
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default: active
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choices: ['active','suspend']
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admin_state:
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description:
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- Manage the VLAN administrative state of the VLAN equivalent
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to shut/no shut in VLAN config mode.
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required: false
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default: up
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choices: ['up','down']
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mapped_vni:
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description:
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- The Virtual Network Identifier (VNI) ID that is mapped to the
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VLAN. Valid values are integer and keyword 'default'.
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required: false
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default: null
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version_added: "2.2"
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state:
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description:
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- Manage the 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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mode:
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description:
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- Set VLAN mode to classical ethernet or fabricpath.
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required: false
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default: null
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choices: ['ce','fabricpath']
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version_added: "2.4"
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'''
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EXAMPLES = '''
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- name: Ensure a range of VLANs are not present on the switch
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nxos_vlan:
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vlan_range: "2-10,20,50,55-60,100-150"
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state: absent
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transport: nxapi
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- name: Ensure VLAN 50 exists with the name WEB and is in the shutdown state
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nxos_vlan:
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vlan_id: 50
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admin_state: down
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name: WEB
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transport: nxapi
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- name: Ensure VLAN is NOT on the device
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nxos_vlan:
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vlan_id: 50
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state: absent
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transport: nxapi
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'''
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RETURN = '''
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commands:
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description: Set of command strings to send to the remote device
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returned: always
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type: list
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sample: ["vlan 20", "vlan 55", "vn-segment 5000"]
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'''
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import re
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from ansible.module_utils.nxos import get_config, load_config, run_commands
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from ansible.module_utils.nxos import nxos_argument_spec
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from ansible.module_utils.nxos import check_args as nxos_check_args
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from ansible.module_utils.basic import AnsibleModule
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def vlan_range_to_list(vlans):
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result = []
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if vlans:
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for part in vlans.split(','):
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if part == 'none':
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break
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if '-' in part:
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start, end = part.split('-')
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start, end = int(start), int(end)
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result.extend([str(i) for i in range(start, end + 1)])
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else:
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result.append(part)
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return result
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def numerical_sort(iterable):
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"""Sort list of strings (VLAN IDs) that are digits in numerical order.
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"""
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as_int_list = []
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for vlan in iterable:
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as_int_list.append(int(vlan))
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as_int_list.sort()
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as_str_list = []
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for vlan in as_int_list:
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as_str_list.append(str(vlan))
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return as_str_list
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def build_commands(vlans, state):
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commands = []
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for vlan in vlans:
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if state == 'present':
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command = 'vlan {0}'.format(vlan)
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commands.append(command)
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elif state == 'absent':
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command = 'no vlan {0}'.format(vlan)
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commands.append(command)
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return commands
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def get_vlan_config_commands(vlan, vid):
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"""Build command list required for VLAN configuration
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"""
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reverse_value_map = {
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"admin_state": {
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"down": "shutdown",
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"up": "no shutdown"
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}
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}
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if vlan.get('admin_state'):
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# apply value map when making change to the admin state
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# note: would need to be a loop or more in depth check if
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# value map has more than 1 key
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vlan = apply_value_map(reverse_value_map, vlan)
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vlan_args = {
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'name': 'name {0}',
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'vlan_state': 'state {0}',
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'admin_state': '{0}',
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'mode': 'mode {0}',
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'mapped_vni': 'vn-segment {0}'
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}
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commands = []
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for param, value in vlan.items():
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if param == 'mapped_vni' and value == 'default':
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command = 'no vn-segment'
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else:
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command = vlan_args.get(param).format(vlan.get(param))
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if command:
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commands.append(command)
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commands.insert(0, 'vlan ' + vid)
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commands.append('exit')
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return commands
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def get_list_of_vlans(module):
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body = run_commands(module, ['show vlan | json'])[0]
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vlan_list = []
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vlan_table = body.get('TABLE_vlanbrief')['ROW_vlanbrief']
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if isinstance(vlan_table, list):
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for vlan in vlan_table:
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vlan_list.append(str(vlan['vlanshowbr-vlanid-utf']))
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else:
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vlan_list.append('1')
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return vlan_list
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def get_vni(vlanid, module):
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flags = str('all | section vlan.{0}'.format(vlanid)).split(' ')
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body = get_config(module, flags=flags)
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value = ''
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if body:
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REGEX = re.compile(r'(?:vn-segment\s)(?P<value>.*)$', re.M)
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if 'vn-segment' in body:
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value = REGEX.search(body).group('value')
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return value
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def get_vlan(vlanid, module):
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"""Get instance of VLAN as a dictionary
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"""
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command = 'show vlan id %s | json' % vlanid
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try:
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body = run_commands(module, [command])[0]
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vlan_table = body['TABLE_vlanbriefid']['ROW_vlanbriefid']
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mtu_table = body['TABLE_mtuinfoid']['ROW_mtuinfoid']
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except (TypeError, IndexError, KeyError):
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return {}
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key_map = {
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"vlanshowbr-vlanid-utf": "vlan_id",
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"vlanshowbr-vlanname": "name",
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"vlanshowbr-vlanstate": "vlan_state",
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"vlanshowbr-shutstate": "admin_state"
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}
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vlan = apply_key_map(key_map, vlan_table)
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vlan['mode'] = mtu_table['vlanshowinfo-vlanmode']
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value_map = {
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"admin_state": {
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"shutdown": "down",
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"noshutdown": "up"
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},
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"mode": {
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"fabricpath-vlan": "fabricpath",
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"ce-vlan": "ce"
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}
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}
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vlan = apply_value_map(value_map, vlan)
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vlan['mapped_vni'] = get_vni(vlanid, module)
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return vlan
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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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new_dict[new_key] = str(value)
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return new_dict
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def apply_value_map(value_map, resource):
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for key, value in value_map.items():
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resource[key] = value[resource.get(key)]
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return resource
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def check_args(module, warnings):
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nxos_check_args(module, warnings)
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for key in ('include_defaults', 'config', 'save'):
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if module.params[key] is not None:
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warnings.append('argument %s is no longer supported, ignoring value' % key)
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def main():
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argument_spec = dict(
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vlan_id=dict(required=False, type='str'),
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vlan_range=dict(required=False),
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name=dict(required=False),
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vlan_state=dict(choices=['active', 'suspend'], required=False),
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mapped_vni=dict(required=False, type='str'),
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state=dict(choices=['present', 'absent'], default='present', required=False),
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admin_state=dict(choices=['up', 'down'], required=False),
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mode=dict(choices=['ce', 'fabricpath'], required=False),
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# Deprecated in Ansible 2.4
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include_defaults=dict(default=False),
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config=dict(),
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save=dict(type='bool', default=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,
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mutually_exclusive=[['vlan_range', 'name'],
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['vlan_id', 'vlan_range']],
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supports_check_mode=True)
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warnings = list()
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check_args(module, warnings)
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results = dict(changed=False, warnings=warnings)
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vlan_range = module.params['vlan_range']
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vlan_id = module.params['vlan_id']
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name = module.params['name']
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vlan_state = module.params['vlan_state']
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admin_state = module.params['admin_state']
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mapped_vni = module.params['mapped_vni']
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state = module.params['state']
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mode = module.params['mode']
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if vlan_id:
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if not vlan_id.isdigit():
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module.fail_json(msg='vlan_id must be a valid VLAN ID')
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args = dict(name=name, vlan_state=vlan_state,
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admin_state=admin_state, mapped_vni=mapped_vni, mode=mode)
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proposed = dict((k, v) for k, v in args.items() if v is not None)
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proposed_vlans_list = vlan_range_to_list(vlan_id or vlan_range)
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existing_vlans_list = get_list_of_vlans(module)
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commands = []
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existing = {}
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if vlan_range:
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if state == 'present':
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# These are all of the VLANs being proposed that don't
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# already exist on the switch
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vlans_delta = numerical_sort(
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set(proposed_vlans_list).difference(existing_vlans_list))
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commands = build_commands(vlans_delta, state)
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elif state == 'absent':
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# VLANs that are common between what is being proposed and
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# what is on the switch
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vlans_common = numerical_sort(
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set(proposed_vlans_list).intersection(existing_vlans_list))
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commands = build_commands(vlans_common, state)
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else:
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existing = get_vlan(vlan_id, module)
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if state == 'absent' and existing:
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commands = ['no vlan ' + vlan_id]
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elif state == 'present':
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if (existing.get('mapped_vni') == '0' and
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proposed.get('mapped_vni') == 'default'):
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proposed.pop('mapped_vni')
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delta = dict(set(proposed.items()).difference(existing.items()))
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if delta or not existing:
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commands = get_vlan_config_commands(delta, vlan_id)
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if commands:
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if existing.get('mapped_vni'):
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if (existing.get('mapped_vni') != proposed.get('mapped_vni') and
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existing.get('mapped_vni') != '0' and proposed.get('mapped_vni') != 'default'):
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if state == 'absent':
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commands = ['vlan ' + vlan_id, 'no vn-segment', 'no vlan ' + vlan_id]
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else:
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commands.insert(1, 'no vn-segment')
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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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load_config(module, commands)
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results['changed'] = True
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results['commands'] = commands
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module.exit_json(**results)
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if __name__ == '__main__':
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main()
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