#!/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 . # DOCUMENTATION = """ --- module: eos_config version_added: "2.1" author: "Peter sprygada (@privateip)" short_description: Manage Arista EOS configuration sections description: - Arista EOS configurations use a simple block indent file sytanx for segementing configuration into sections. This module provides an implementation for working with eos configuration sections in a deterministic way. This module works with either CLI or eapi transports. extends_documentation_fragment: eos options: lines: description: - The ordered set of commands that should be configured in the section. The commands must be the exact same commands as found in the device running-config. Be sure to note the configuration command syntanx as some commands are automatically modified by the device config parser. required: true parents: description: - The ordered set of parents that uniquely identify the section the commands should be checked against. If the parents argument is omitted, the commands are checked against the set of top level or global commands. required: false default: null before: description: - The ordered set of commands to push on to the command stack if a change needs to be made. This allows the playbook designer the opportunity to perform configuration commands prior to pushing any changes without affecting how the set of commands are matched against the system required: false default: null after: description: - The ordered set of commands to append to the end of the command stack if a changed needs to be made. Just like with I(before) this allows the playbook designer to append a set of commands to be executed after the command set. required: false default: null match: description: - Instructs the module on the way to perform the matching of the set of commands against the current device config. If match is set to I(line), commands are matched line by line. If match is set to I(strict), command lines are matched with respect to position. Finally if match is set to I(exact), command lines must be an equal match. required: false default: line choices: ['line', 'strict', 'exact'] replace: description: - Instructs the module on the way to perform the configuration on the device. If the replace argument is set to I(line) then the modified lines are pushed to the device in configuration mode. If the replace argument is set to I(block) then the entire command block is pushed to the device in configuration mode if any line is not correct required: false default: line choices: ['line', 'block'] force: description: - The force argument instructs the module to not consider the current devices running-config. When set to true, this will cause the module to push the contents of I(src) into the device without first checking if already configured. required: false default: false choices: BOOLEANS config: description: - The module, by default, will connect to the remote device and retrieve the current running-config to use as a base for comparing against the contents of source. There are times when it is not desirable to have the task get the current running-config for every task in a playbook. The I(config) argument allows the implementer to pass in the configuruation to use as the base config for comparision. required: false default: null """ EXAMPLES = """ - eos_config: lines: ['hostname {{ inventory_hostname }}'] force: yes - eos_config: lines: - 10 permit ip 1.1.1.1/32 any log - 20 permit ip 2.2.2.2/32 any log - 30 permit ip 3.3.3.3/32 any log - 40 permit ip 4.4.4.4/32 any log - 50 permit ip 5.5.5.5/32 any log parents: ['ip access-list test'] before: ['no ip access-list test'] match: exact - eos_config: lines: - 10 permit ip 1.1.1.1/32 any log - 20 permit ip 2.2.2.2/32 any log - 30 permit ip 3.3.3.3/32 any log - 40 permit ip 4.4.4.4/32 any log parents: ['ip access-list test'] before: ['no ip access-list test'] replace: block - eos_config: commands: "{{lookup('file', 'datcenter1.txt'}}" parents: ['ip access-list test'] before: ['no ip access-list test'] replace: block """ RETURN = """ updates: description: The set of commands that will be pushed to the remote device returned: always type: list sample: ['...', '...'] responses: description: The set of responses from issuing the commands on the device retured: always type: list sample: ['...', '...'] """ import re import itertools def get_config(module): config = module.params['config'] or dict() if not config and not module.params['force']: config = module.config return config def build_candidate(lines, parents, config, strategy): candidate = list() if strategy == 'strict': if len(lines) != len(config): candidate = list(lines) else: for index, cmd in enumerate(lines): try: if cmd != config[index]: candidate.append(cmd) except IndexError: candidate.append(cmd) elif strategy == 'exact': if len(lines) != len(config): candidate = list(lines) else: for cmd, cfg in itertools.izip(lines, config): if cmd != cfg: candidate = list(lines) break else: for cmd in lines: if cmd not in config: candidate.append(cmd) return candidate def main(): """ main entry point for module execution """ argument_spec = dict( lines=dict(aliases=['commands'], required=True, type='list'), parents=dict(type='list'), before=dict(type='list'), after=dict(type='list'), match=dict(default='line', choices=['line', 'strict', 'exact']), replace=dict(default='line', choices=['line', 'block']), force=dict(default=False, type='bool'), config=dict() ) module = get_module(argument_spec=argument_spec, supports_check_mode=True) lines = module.params['lines'] parents = module.params['parents'] or list() before = module.params['before'] after = module.params['after'] match = module.params['match'] replace = module.params['replace'] contents = get_config(module) config = module.parse_config(contents) if parents: for parent in parents: for item in config: if item.text == parent: config = item try: children = [c.text for c in config.children] except AttributeError: children = [c.text for c in config] else: children = [c.text for c in config if not c.parents] result = dict(changed=False) candidate = build_candidate(lines, parents, children, match) if candidate: if replace == 'line': candidate[:0] = parents else: candidate = list(parents) candidate.extend(lines) if before: candidate[:0] = before if after: candidate.extend(after) if not module.check_mode: response = module.configure(candidate) result['responses'] = response result['changed'] = True result['updates'] = candidate return module.exit_json(**result) from ansible.module_utils.basic import * from ansible.module_utils.urls import * from ansible.module_utils.shell import * from ansible.module_utils.netcfg import * from ansible.module_utils.eos import * if __name__ == '__main__': main()