mirror of https://github.com/ansible/ansible.git
Merge pull request #4665 from GGabriele/nxos_portchannel
Adding nxos_portchannelreviewable/pr18780/r1
Peter Sprygada
8 years ago
committed by
GitHub
commit
54ae1e9787
@ -0,0 +1,733 @@
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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
|
||||
# the Free Software Foundation, either version 3 of the License, or
|
||||
# (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_portchannel
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version_added: "2.2"
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short_description: Manages port-channel interfaces.
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description:
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- Manages port-channel specific configuration parameters.
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extends_documentation_fragment: nxos
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author:
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- Jason Edelman (@jedelman8)
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- Gabriele Gerbino (@GGabriele)
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notes:
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- C(state=absent) removes the portchannel config and interface if it
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already exists. If members to be removed are not explicitly
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passed, all existing members (if any), are removed.
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- Members must be a list.
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- LACP needs to be enabled first if active/passive modes are used.
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options:
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group:
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description:
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- Channel-group number for the port-channel.
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required: true
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mode:
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description:
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- Mode for the port-channel, i.e. on, active, passive.
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required: false
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default: on
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choices: ['active','passive','on']
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min_links:
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description:
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- Min links required to keep portchannel up.
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required: false
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default: null
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members:
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description:
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- List of interfaces that will be managed in a given portchannel.
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required: false
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default: null
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force:
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description:
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- When true it forces port-channel members to match what is
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declared in the members param. This can be used to remove
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members.
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required: false
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choices: ['true', 'false']
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default: false
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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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'''
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EXAMPLES = '''
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# Ensure port-channel99 is created, add two members, and set to mode on
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- nxos_portchannel:
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group: 99
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members: ['Ethernet1/1','Ethernet1/2']
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mode: 'active'
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state: present
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username: "{{ un }}"
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password: "{{ pwd }}"
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host: "{{ inventory_hostname }}"
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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: {"group": "12", "members": ["Ethernet2/5",
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"Ethernet2/6"], "mode": "on"}
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existing:
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description:
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- k/v pairs of existing portchannel
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type: dict
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sample: {"group": "12", "members": ["Ethernet2/5",
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"Ethernet2/6"], "members_detail": {
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"Ethernet2/5": {"mode": "active", "status": "D"},
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"Ethernet2/6": {"mode": "active", "status": "D"}},
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"min_links": null, "mode": "active"}
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end_state:
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description: k/v pairs of portchannel info after module execution
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returned: always
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type: dict
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sample: {"group": "12", "members": ["Ethernet2/5",
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"Ethernet2/6"], "members_detail": {
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"Ethernet2/5": {"mode": "on", "status": "D"},
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"Ethernet2/6": {"mode": "on", "status": "D"}},
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"min_links": null, "mode": "on"}
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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 Ethernet2/6 ; no channel-group 12 ;
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interface Ethernet2/5 ; no channel-group 12 ;
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interface Ethernet2/6 ; channel-group 12 mode on ;
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interface Ethernet2/5 ; channel-group 12 mode on ;"
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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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import collections
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import json
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# COMMON CODE FOR MIGRATION
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import re
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from ansible.module_utils.basic import get_exception
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from ansible.module_utils.netcfg import NetworkConfig, ConfigLine
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from ansible.module_utils.shell import ShellError
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try:
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from ansible.module_utils.nxos import get_module
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except ImportError:
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from ansible.module_utils.nxos import NetworkModule
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def to_list(val):
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if isinstance(val, (list, tuple)):
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return list(val)
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elif val is not None:
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return [val]
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else:
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return list()
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class CustomNetworkConfig(NetworkConfig):
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def expand_section(self, configobj, S=None):
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if S is None:
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S = list()
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S.append(configobj)
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for child in configobj.children:
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if child in S:
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continue
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self.expand_section(child, S)
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return S
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def get_object(self, path):
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for item in self.items:
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if item.text == path[-1]:
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parents = [p.text for p in item.parents]
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if parents == path[:-1]:
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return item
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def to_block(self, section):
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return '\n'.join([item.raw for item in section])
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def get_section(self, path):
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try:
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section = self.get_section_objects(path)
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return self.to_block(section)
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except ValueError:
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return list()
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def get_section_objects(self, path):
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if not isinstance(path, list):
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path = [path]
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obj = self.get_object(path)
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if not obj:
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raise ValueError('path does not exist in config')
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return self.expand_section(obj)
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def add(self, lines, parents=None):
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"""Adds one or lines of configuration
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"""
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ancestors = list()
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offset = 0
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obj = None
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## global config command
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if not parents:
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for line in to_list(lines):
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item = ConfigLine(line)
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item.raw = line
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if item not in self.items:
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self.items.append(item)
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else:
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for index, p in enumerate(parents):
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try:
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i = index + 1
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obj = self.get_section_objects(parents[:i])[0]
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ancestors.append(obj)
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except ValueError:
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# add parent to config
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offset = index * self.indent
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obj = ConfigLine(p)
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obj.raw = p.rjust(len(p) + offset)
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if ancestors:
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obj.parents = list(ancestors)
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ancestors[-1].children.append(obj)
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self.items.append(obj)
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ancestors.append(obj)
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# add child objects
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for line in to_list(lines):
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# check if child already exists
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for child in ancestors[-1].children:
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if child.text == line:
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break
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else:
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offset = len(parents) * self.indent
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item = ConfigLine(line)
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item.raw = line.rjust(len(line) + offset)
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item.parents = ancestors
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ancestors[-1].children.append(item)
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self.items.append(item)
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def get_network_module(**kwargs):
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try:
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return get_module(**kwargs)
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except NameError:
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return NetworkModule(**kwargs)
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def get_config(module, include_defaults=False):
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config = module.params['config']
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if not config:
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try:
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config = module.get_config()
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except AttributeError:
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defaults = module.params['include_defaults']
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config = module.config.get_config(include_defaults=defaults)
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return CustomNetworkConfig(indent=2, contents=config)
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def load_config(module, candidate):
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config = get_config(module)
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commands = candidate.difference(config)
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commands = [str(c).strip() for c in commands]
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save_config = module.params['save']
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result = dict(changed=False)
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if commands:
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if not module.check_mode:
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try:
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module.configure(commands)
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except AttributeError:
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module.config(commands)
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if save_config:
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try:
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module.config.save_config()
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except AttributeError:
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module.execute(['copy running-config startup-config'])
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result['changed'] = True
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result['updates'] = commands
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return result
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# END OF COMMON CODE
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WARNINGS = []
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PARAM_TO_COMMAND_KEYMAP = {
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'min_links': 'lacp min-links'
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}
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def invoke(name, *args, **kwargs):
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func = globals().get(name)
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if func:
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return func(*args, **kwargs)
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def get_value(arg, config, module):
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REGEX = re.compile(r'(?:{0}\s)(?P<value>.*)$'.format(PARAM_TO_COMMAND_KEYMAP[arg]), re.M)
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value = ''
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if PARAM_TO_COMMAND_KEYMAP[arg] in config:
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value = REGEX.search(config).group('value')
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return value
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def check_interface(module, netcfg):
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config = str(netcfg)
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REGEX = re.compile(r'\s+interface port-channel{0}*$'.format(module.params['group']), re.M)
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value = False
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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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|
||||
return value
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||||
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||||
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def get_custom_value(arg, config, module):
|
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REGEX = re.compile(r'\s+member vni {0} associate-vrf\s*$'.format(
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module.params['vni']), re.M)
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value = False
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||||
try:
|
||||
if REGEX.search(config):
|
||||
value = True
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||||
except TypeError:
|
||||
value = False
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return value
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||||
|
||||
|
||||
def execute_config_command(commands, module):
|
||||
try:
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||||
output = module.configure(commands)
|
||||
except ShellError:
|
||||
clie = get_exception()
|
||||
module.fail_json(msg='Error sending CLI commands',
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||||
error=str(clie), commands=commands)
|
||||
return output
|
||||
|
||||
|
||||
def get_cli_body_ssh(command, response, module):
|
||||
try:
|
||||
body = [json.loads(response[0])]
|
||||
except ValueError:
|
||||
module.fail_json(msg='Command does not support JSON output',
|
||||
command=command)
|
||||
return body
|
||||
|
||||
|
||||
def execute_show(cmds, module, command_type=None):
|
||||
command_type_map = {
|
||||
'cli_show': 'json',
|
||||
'cli_show_ascii': 'text'
|
||||
}
|
||||
|
||||
try:
|
||||
if command_type:
|
||||
response = module.execute(cmds, command_type=command_type)
|
||||
else:
|
||||
response = module.execute(cmds)
|
||||
except ShellError:
|
||||
clie = get_exception()
|
||||
module.fail_json(msg='Error sending {0}'.format(cmds),
|
||||
error=str(clie))
|
||||
except AttributeError:
|
||||
try:
|
||||
if command_type:
|
||||
command_type = command_type_map.get(command_type)
|
||||
module.cli.add_commands(cmds, output=command_type)
|
||||
response = module.cli.run_commands()
|
||||
else:
|
||||
module.cli.add_commands(cmds, output=command_type)
|
||||
response = module.cli.run_commands()
|
||||
except ShellError:
|
||||
clie = get_exception()
|
||||
module.fail_json(msg='Error sending {0}'.format(cmds),
|
||||
error=str(clie))
|
||||
return response
|
||||
|
||||
|
||||
def execute_show_command(command, module, command_type='cli_show'):
|
||||
if module.params['transport'] == 'cli':
|
||||
if 'show port-channel summary' in command:
|
||||
command += ' | json'
|
||||
cmds = [command]
|
||||
response = execute_show(cmds, module)
|
||||
body = get_cli_body_ssh(command, response, module)
|
||||
elif module.params['transport'] == 'nxapi':
|
||||
cmds = [command]
|
||||
body = execute_show(cmds, module, command_type=command_type)
|
||||
|
||||
return body
|
||||
|
||||
|
||||
def get_portchannel_members(pchannel):
|
||||
try:
|
||||
members = pchannel['TABLE_member']['ROW_member']
|
||||
except KeyError:
|
||||
members = []
|
||||
|
||||
return members
|
||||
|
||||
|
||||
def get_portchannel_mode(interface, protocol, module, netcfg):
|
||||
if protocol != 'LACP':
|
||||
mode = 'on'
|
||||
else:
|
||||
netcfg = get_config(module)
|
||||
parents = ['interface {0}'.format(interface.capitalize())]
|
||||
body = netcfg.get_section(parents)
|
||||
|
||||
mode_list = body.split('\n')
|
||||
|
||||
for line in mode_list:
|
||||
this_line = line.strip()
|
||||
if this_line.startswith('channel-group'):
|
||||
find = this_line
|
||||
if 'mode' in find:
|
||||
if 'passive' in find:
|
||||
mode = 'passive'
|
||||
elif 'active' in find:
|
||||
mode = 'active'
|
||||
|
||||
return mode
|
||||
|
||||
|
||||
def get_portchannel(module, netcfg=None):
|
||||
command = 'show port-channel summary'
|
||||
portchannel = {}
|
||||
portchannel_table = {}
|
||||
members = []
|
||||
|
||||
body = execute_show_command(command, module)
|
||||
|
||||
try:
|
||||
pc_table = body[0]['TABLE_channel']['ROW_channel']
|
||||
|
||||
if isinstance(pc_table, dict):
|
||||
pc_table = [pc_table]
|
||||
|
||||
for pc in pc_table:
|
||||
if pc['group'] == module.params['group']:
|
||||
portchannel_table = pc
|
||||
except (KeyError, AttributeError, TypeError, IndexError):
|
||||
return {}
|
||||
|
||||
if portchannel_table:
|
||||
portchannel['group'] = portchannel_table['group']
|
||||
protocol = portchannel_table['prtcl']
|
||||
members_list = get_portchannel_members(portchannel_table)
|
||||
|
||||
if isinstance(members_list, dict):
|
||||
members_list = [members_list]
|
||||
|
||||
member_dictionary = {}
|
||||
for each_member in members_list:
|
||||
interface = each_member['port']
|
||||
members.append(interface)
|
||||
|
||||
pc_member = {}
|
||||
pc_member['status'] = str(each_member['port-status'])
|
||||
pc_member['mode'] = get_portchannel_mode(interface,
|
||||
protocol, module, netcfg)
|
||||
|
||||
member_dictionary[interface] = pc_member
|
||||
portchannel['members'] = members
|
||||
portchannel['members_detail'] = member_dictionary
|
||||
|
||||
# Ensure each member have the same mode.
|
||||
modes = set()
|
||||
for each, value in member_dictionary.iteritems():
|
||||
modes.update([value['mode']])
|
||||
if len(modes) == 1:
|
||||
portchannel['mode'] = value['mode']
|
||||
else:
|
||||
portchannel['mode'] = 'unknown'
|
||||
return portchannel
|
||||
|
||||
|
||||
def get_existing(module, args):
|
||||
existing = {}
|
||||
netcfg = get_config(module)
|
||||
|
||||
interface_exist = check_interface(module, netcfg)
|
||||
if interface_exist:
|
||||
parents = ['interface port-channel{0}'.format(module.params['group'])]
|
||||
config = netcfg.get_section(parents)
|
||||
|
||||
if config:
|
||||
existing['min_links'] = get_value('min_links', config, module)
|
||||
existing.update(get_portchannel(module, netcfg=netcfg))
|
||||
|
||||
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:
|
||||
value = table.get(key)
|
||||
if value:
|
||||
new_dict[new_key] = value
|
||||
else:
|
||||
new_dict[new_key] = value
|
||||
return new_dict
|
||||
|
||||
|
||||
def config_portchannel(proposed, mode, group):
|
||||
commands = []
|
||||
config_args = {
|
||||
'mode': 'channel-group {group} mode {mode}',
|
||||
'min_links': 'lacp min-links {min_links}',
|
||||
}
|
||||
|
||||
for member in proposed.get('members', []):
|
||||
commands.append('interface {0}'.format(member))
|
||||
commands.append(config_args.get('mode').format(group=group, mode=mode))
|
||||
|
||||
min_links = proposed.get('min_links', None)
|
||||
if min_links:
|
||||
command = 'interface port-channel {0}'.format(group)
|
||||
commands.append(command)
|
||||
commands.append(config_args.get('min_links').format(
|
||||
min_links=min_links))
|
||||
|
||||
return commands
|
||||
|
||||
|
||||
def get_commands_to_add_members(proposed, existing, module):
|
||||
try:
|
||||
proposed_members = proposed['members']
|
||||
except KeyError:
|
||||
proposed_members = []
|
||||
|
||||
try:
|
||||
existing_members = existing['members']
|
||||
except KeyError:
|
||||
existing_members = []
|
||||
|
||||
members_to_add = list(set(proposed_members).difference(existing_members))
|
||||
|
||||
commands = []
|
||||
if members_to_add:
|
||||
for member in members_to_add:
|
||||
commands.append('interface {0}'.format(member))
|
||||
commands.append('channel-group {0} mode {1}'.format(
|
||||
existing['group'], proposed['mode']))
|
||||
|
||||
return commands
|
||||
|
||||
|
||||
def get_commands_to_remove_members(proposed, existing, module):
|
||||
try:
|
||||
proposed_members = proposed['members']
|
||||
except KeyError:
|
||||
proposed_members = []
|
||||
|
||||
try:
|
||||
existing_members = existing['members']
|
||||
except KeyError:
|
||||
existing_members = []
|
||||
|
||||
members_to_remove = list(set(existing_members).difference(proposed_members))
|
||||
commands = []
|
||||
if members_to_remove:
|
||||
for member in members_to_remove:
|
||||
commands.append('interface {0}'.format(member))
|
||||
commands.append('no channel-group {0}'.format(existing['group']))
|
||||
|
||||
return commands
|
||||
|
||||
|
||||
def get_commands_if_mode_change(proposed, existing, group, mode, module):
|
||||
try:
|
||||
proposed_members = proposed['members']
|
||||
except KeyError:
|
||||
proposed_members = []
|
||||
|
||||
try:
|
||||
existing_members = existing['members']
|
||||
except KeyError:
|
||||
existing_members = []
|
||||
|
||||
try:
|
||||
members_dict = existing['members_detail']
|
||||
except KeyError:
|
||||
members_dict = {}
|
||||
|
||||
members_to_remove = set(existing_members).difference(proposed_members)
|
||||
members_with_mode_change = []
|
||||
if members_dict:
|
||||
for interface, values in members_dict.iteritems():
|
||||
if (interface in proposed_members and
|
||||
(interface not in members_to_remove)):
|
||||
if values['mode'] != mode:
|
||||
members_with_mode_change.append(interface)
|
||||
|
||||
commands = []
|
||||
if members_with_mode_change:
|
||||
for member in members_with_mode_change:
|
||||
commands.append('interface {0}'.format(member))
|
||||
commands.append('no channel-group {0}'.format(group))
|
||||
|
||||
for member in members_with_mode_change:
|
||||
commands.append('interface {0}'.format(member))
|
||||
commands.append('channel-group {0} mode {1}'.format(group, mode))
|
||||
|
||||
return commands
|
||||
|
||||
|
||||
def get_commands_min_links(existing, proposed, group, min_links, module):
|
||||
commands = []
|
||||
try:
|
||||
if (existing['min_links'] is None or
|
||||
(existing['min_links'] != proposed['min_links'])):
|
||||
commands.append('interface port-channel{0}'.format(group))
|
||||
commands.append('lacp min-link {0}'.format(min_links))
|
||||
except KeyError:
|
||||
commands.append('interface port-channel{0}'.format(group))
|
||||
commands.append('lacp min-link {0}'.format(min_links))
|
||||
return commands
|
||||
|
||||
|
||||
def flatten_list(command_lists):
|
||||
flat_command_list = []
|
||||
for command in command_lists:
|
||||
if isinstance(command, list):
|
||||
flat_command_list.extend(command)
|
||||
else:
|
||||
flat_command_list.append(command)
|
||||
return flat_command_list
|
||||
|
||||
|
||||
def main():
|
||||
argument_spec = dict(
|
||||
group=dict(required=True, type='str'),
|
||||
mode=dict(required=False, choices=['on', 'active', 'passive'],
|
||||
default='on', type='str'),
|
||||
min_links=dict(required=False, default=None, type='str'),
|
||||
members=dict(required=False, default=None, type='list'),
|
||||
force=dict(required=False, default='false', type='str',
|
||||
choices=['true', 'false']),
|
||||
state=dict(required=False, choices=['absent', 'present'],
|
||||
default='present'),
|
||||
include_defaults=dict(default=False),
|
||||
config=dict(),
|
||||
save=dict(type='bool', default=False)
|
||||
)
|
||||
module = get_network_module(argument_spec=argument_spec,
|
||||
supports_check_mode=True)
|
||||
|
||||
group = str(module.params['group'])
|
||||
mode = module.params['mode']
|
||||
min_links = module.params['min_links']
|
||||
members = module.params['members']
|
||||
state = module.params['state']
|
||||
|
||||
if str(module.params['force']).lower() == 'true':
|
||||
force = True
|
||||
elif module.params['force'] == 'false':
|
||||
force = False
|
||||
|
||||
if ((min_links or mode) and
|
||||
(not members and state == 'present')):
|
||||
module.fail_json(msg='"members" is required when state=present and '
|
||||
'"min_links" or "mode" are provided')
|
||||
|
||||
changed = False
|
||||
args = [
|
||||
'group',
|
||||
'members',
|
||||
'min_links',
|
||||
'mode'
|
||||
]
|
||||
|
||||
existing, interface_exist = invoke('get_existing', module, args)
|
||||
end_state = existing
|
||||
proposed = dict((k, v) for k, v in module.params.iteritems()
|
||||
if v is not None and k in args)
|
||||
|
||||
result = {}
|
||||
commands = []
|
||||
if state == 'absent':
|
||||
if existing:
|
||||
commands.append(['no interface port-channel{0}'.format(group)])
|
||||
elif state == 'present':
|
||||
if not interface_exist:
|
||||
command = config_portchannel(proposed, mode, group)
|
||||
commands.append(command)
|
||||
commands.insert(0, 'interface port-channel{0}'.format(group))
|
||||
WARNINGS.append("The proposed port-channel interface did not "
|
||||
"exist. It's recommended to use nxos_interface to "
|
||||
"create all logical interfaces.")
|
||||
|
||||
elif existing and interface_exist:
|
||||
if force:
|
||||
command = get_commands_to_remove_members(proposed, existing, module)
|
||||
commands.append(command)
|
||||
|
||||
command = get_commands_to_add_members(proposed, existing, module)
|
||||
commands.append(command)
|
||||
|
||||
mode_command = get_commands_if_mode_change(proposed, existing,
|
||||
group, mode, module)
|
||||
|
||||
commands.insert(0, mode_command)
|
||||
|
||||
if min_links:
|
||||
command = get_commands_min_links(existing, proposed,
|
||||
group, min_links, module)
|
||||
commands.append(command)
|
||||
|
||||
cmds = flatten_list(commands)
|
||||
if cmds:
|
||||
if module.check_mode:
|
||||
module.exit_json(changed=True, commands=cmds)
|
||||
else:
|
||||
output = execute_config_command(cmds, module)
|
||||
changed = True
|
||||
end_state, interface_exist = get_existing(module, args)
|
||||
|
||||
results = {}
|
||||
results['proposed'] = proposed
|
||||
results['existing'] = existing
|
||||
results['end_state'] = end_state
|
||||
results['state'] = state
|
||||
results['updates'] = cmds
|
||||
results['changed'] = changed
|
||||
|
||||
if WARNINGS:
|
||||
results['warnings'] = WARNINGS
|
||||
|
||||
module.exit_json(**results)
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
main()
|
||||
Loading…
Reference in New Issue