From d3de4c160f97fc7bcddb8ff7142780e0bc544723 Mon Sep 17 00:00:00 2001 From: GGabriele Date: Thu, 15 Sep 2016 12:29:04 +0200 Subject: [PATCH] Adding nxos_vtp_password --- .../modules/network/nxos/nxos_vtp_password.py | 463 ++++++++++++++++++ 1 file changed, 463 insertions(+) create mode 100644 lib/ansible/modules/network/nxos/nxos_vtp_password.py diff --git a/lib/ansible/modules/network/nxos/nxos_vtp_password.py b/lib/ansible/modules/network/nxos/nxos_vtp_password.py new file mode 100644 index 00000000000..ff1991c0331 --- /dev/null +++ b/lib/ansible/modules/network/nxos/nxos_vtp_password.py @@ -0,0 +1,463 @@ +#!/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: nxos_vtp +version_added: "2.2" +short_description: Manages VTP configuration. +description: + - Manages VTP configuration +extends_documentation_fragment: nxos +author: + - Gabriele Gerbino (@GGabriele) +notes: + - VTP feature must be active on the device to use this module. + - This module is used to manage only VTP passwords. + - Use this in combination with M(nxos_vtp_domain) and M(nxos_vtp_version) + to fully manage VTP operations. + - You can set/remove password only if a VTP domain already exist. + - If C(state=absent) and no C(vtp_password) is provided, it remove the current + VTP password. + - If C(state=absent) and C(vtp_password) is provided, the proposed C(vtp_password) + has to match the existing one in order to remove it. +options: + vtp_password: + description: + - VTP password + required: false + default: null + state: + description: + - Manage the state of the resource + required: false + default: present + choices: ['present','absent'] +''' + +EXAMPLES = ''' +# ENSURE VTP PASSWORD IS SET +- nxos_vtp_password: + password=ntc + state=present + host={{ inventory_hostname }} + username={{ un }} + password={{ pwd }} + +# ENSURE VTP PASSWORD IS REMOVED +- nxos_vtp_password: + password=ntc + state=absent + host={{ inventory_hostname }} + username={{ un }} + password={{ pwd }} +''' + +RETURN = ''' +proposed: + description: k/v pairs of parameters passed into module + returned: always + type: dict + sample: {"vtp_password": "new_ntc"} +existing: + description: + - k/v pairs of existing vtp + type: dict + sample: {"domain": "ntc", "version": "1", "vtp_password": "ntc"} +end_state: + description: k/v pairs of vtp after module execution + returned: always + type: dict + sample: {"domain": "ntc", "version": "1", "vtp_password": "new_ntc"} +updates: + description: command sent to the device + returned: always + type: list + sample: ["vtp password new_ntc"] +changed: + description: check to see if a change was made on the device + returned: always + type: boolean + sample: true +''' + +import json + +# COMMON CODE FOR MIGRATION +import re + +from ansible.module_utils.basic import get_exception +from ansible.module_utils.netcfg import NetworkConfig, ConfigLine +from ansible.module_utils.shell import ShellError + +try: + from ansible.module_utils.nxos import get_module +except ImportError: + from ansible.module_utils.nxos import NetworkModule + + +def to_list(val): + if isinstance(val, (list, tuple)): + return list(val) + elif val is not None: + return [val] + else: + return list() + + +class CustomNetworkConfig(NetworkConfig): + + def expand_section(self, configobj, S=None): + if S is None: + S = list() + S.append(configobj) + for child in configobj.children: + if child in S: + continue + self.expand_section(child, S) + return S + + def get_object(self, path): + for item in self.items: + if item.text == path[-1]: + parents = [p.text for p in item.parents] + if parents == path[:-1]: + return item + + def to_block(self, section): + return '\n'.join([item.raw for item in section]) + + def get_section(self, path): + try: + section = self.get_section_objects(path) + return self.to_block(section) + except ValueError: + return list() + + def get_section_objects(self, path): + if not isinstance(path, list): + path = [path] + obj = self.get_object(path) + if not obj: + raise ValueError('path does not exist in config') + return self.expand_section(obj) + + + def add(self, lines, parents=None): + """Adds one or lines of configuration + """ + + ancestors = list() + offset = 0 + obj = None + + ## global config command + if not parents: + for line in to_list(lines): + item = ConfigLine(line) + item.raw = line + if item not in self.items: + self.items.append(item) + + else: + for index, p in enumerate(parents): + try: + i = index + 1 + obj = self.get_section_objects(parents[:i])[0] + ancestors.append(obj) + + except ValueError: + # add parent to config + offset = index * self.indent + obj = ConfigLine(p) + obj.raw = p.rjust(len(p) + offset) + if ancestors: + obj.parents = list(ancestors) + ancestors[-1].children.append(obj) + self.items.append(obj) + ancestors.append(obj) + + # add child objects + for line in to_list(lines): + # check if child already exists + for child in ancestors[-1].children: + if child.text == line: + break + else: + offset = len(parents) * self.indent + item = ConfigLine(line) + item.raw = line.rjust(len(line) + offset) + item.parents = ancestors + ancestors[-1].children.append(item) + self.items.append(item) + + +def get_network_module(**kwargs): + try: + return get_module(**kwargs) + except NameError: + return NetworkModule(**kwargs) + +def get_config(module, include_defaults=False): + config = module.params['config'] + if not config: + try: + config = module.get_config() + except AttributeError: + defaults = module.params['include_defaults'] + config = module.config.get_config(include_defaults=defaults) + return CustomNetworkConfig(indent=2, contents=config) + +def load_config(module, candidate): + config = get_config(module) + + commands = candidate.difference(config) + commands = [str(c).strip() for c in commands] + + save_config = module.params['save'] + + result = dict(changed=False) + + if commands: + if not module.check_mode: + try: + module.configure(commands) + except AttributeError: + module.config(commands) + + if save_config: + try: + module.config.save_config() + except AttributeError: + module.execute(['copy running-config startup-config']) + + result['changed'] = True + result['updates'] = commands + + return result +# END OF COMMON CODE + + +def execute_config_command(commands, module): + try: + module.configure(commands) + except ShellError: + clie = get_exception() + module.fail_json(msg='Error sending CLI commands', + error=str(clie), commands=commands) + except AttributeError: + try: + commands.insert(0, 'configure') + module.cli.add_commands(commands, output='config') + module.cli.run_commands() + except ShellError: + clie = get_exception() + module.fail_json(msg='Error sending CLI commands', + error=str(clie), commands=commands) + + +def get_cli_body_ssh(command, response, module): + """Get response for when transport=cli. This is kind of a hack and mainly + needed because these modules were originally written for NX-API. And + not every command supports "| json" when using cli/ssh. As such, we assume + if | json returns an XML string, it is a valid command, but that the + resource doesn't exist yet. Instead, the output will be a raw string + when issuing commands containing 'show run'. + """ + if 'xml' in response[0] or response[0] == '\n': + body = [] + elif 'show run' in command: + body = response + else: + try: + if isinstance(response[0], str): + body = [json.loads(response[0])] + else: + body = response + 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) + 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 run' not 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 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 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] = str(value) + else: + new_dict[new_key] = value + return new_dict + + +def get_vtp_config(module): + command = 'show vtp status' + body = execute_show_command(command, module) + vtp_parsed = {} + + vtp_key = { + 'running-version': 'version', + 'domain_name': 'domain', + } + + if body: + vtp_parsed = apply_key_map(vtp_key, body[0]) + vtp_parsed['vtp_password'] = get_vtp_password(module) + + return vtp_parsed + + +def get_vtp_password(module): + command = 'show vtp password' + body = execute_show_command(command, module)[0] + password = body['passwd'] + if password: + return str(password) + else: + return "" + + +def main(): + argument_spec = dict( + vtp_password=dict(type='str'), + state=dict(choices=['absent', 'present'], + default='present'), + ) + module = get_network_module(argument_spec=argument_spec, + supports_check_mode=True) + + vtp_password = module.params['vtp_password'] or None + state = module.params['state'] + + existing = get_vtp_config(module) + end_state = existing + + args = dict(vtp_password=vtp_password) + + changed = False + proposed = dict((k, v) for k, v in args.iteritems() if v is not None) + delta = dict(set(proposed.iteritems()).difference(existing.iteritems())) + + commands = [] + if state == 'absent': + if vtp_password is not None: + if existing['vtp_password'] == proposed['vtp_password']: + commands.append(['no vtp password']) + else: + module.fail_json(msg="Proposed vtp password doesn't match " + "current vtp password. It cannot be " + "removed when state=absent. If you are " + "trying to change the vtp password, use " + "state=present.") + else: + if not existing.get('domain'): + module.fail_json(msg='Cannot remove a vtp password ' + 'before vtp domain is set.') + + elif existing['vtp_password'] != ('\\'): + commands.append(['no vtp password']) + + elif state == 'present': + if delta: + if not existing.get('domain'): + module.fail_json(msg='Cannot set vtp password ' + 'before vtp domain is set.') + + else: + commands.append(['vtp password {0}'.format(vtp_password)]) + + cmds = flatten_list(commands) + if cmds: + if module.check_mode: + module.exit_json(changed=True, commands=cmds) + else: + changed = True + execute_config_command(cmds, module) + end_state = get_vtp_config(module) + + results = {} + results['proposed'] = proposed + results['existing'] = existing + results['end_state'] = end_state + results['updates'] = cmds + results['changed'] = changed + + module.exit_json(**results) + + +if __name__ == '__main__': + main() \ No newline at end of file