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enos
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enos_config.py
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#!/usr/bin/python # -*- coding: utf-8 -*- # # (C) 2017 Red Hat Inc. # Copyright (C) 2017 Lenovo. # # GNU General Public License v3.0+ # # This program 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. # # (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt) # # Module to configure Lenovo Switches. # Lenovo Networking # from __future__ import absolute_import, division, print_function __metaclass__ = type ANSIBLE_METADATA = {'metadata_version': '1.1', 'status': ['preview'], 'supported_by': 'community'} DOCUMENTATION = """ --- module: enos_config version_added: "2.5" author: "Anil Kumar Muraleedharan (@amuraleedhar)" short_description: Manage Lenovo ENOS configuration sections description: - Lenovo ENOS configurations use a simple block indent file syntax for segmenting configuration into sections. This module provides an implementation for working with ENOS configuration sections in a deterministic way. extends_documentation_fragment: enos notes: - Tested against ENOS 8.4.1 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 syntax as some commands are automatically modified by the device config parser. aliases: ['commands'] 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. src: description: - Specifies the source path to the file that contains the configuration or configuration template to load. The path to the source file can either be the full path on the Ansible control host or a relative path from the playbook or role root directory. This argument is mutually exclusive with I(lines), I(parents). 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. after: description: - The ordered set of commands to append to the end of the command stack if a change 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. 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. If match is set to I(exact), command lines must be an equal match. Finally, if match is set to I(none), the module will not attempt to compare the source configuration with the running configuration on the remote device. default: line choices: ['line', 'strict', 'exact', 'none'] 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. default: line choices: ['line', 'block', 'config'] 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 configuration to use as the base config for comparison. backup: description: - This argument will cause the module to create a full backup of the current C(running-config) from the remote device before any changes are made. If the C(backup_options) value is not given, the backup file is written to the C(backup) folder in the playbook root directory. If the directory does not exist, it is created. type: bool default: 'no' comment: description: - Allows a commit description to be specified to be included when the configuration is committed. If the configuration is not changed or committed, this argument is ignored. default: 'configured by enos_config' admin: description: - Enters into administration configuration mode for making config changes to the device. type: bool default: 'no' backup_options: description: - This is a dict object containing configurable options related to backup file path. The value of this option is read only when C(backup) is set to I(yes), if C(backup) is set to I(no) this option will be silently ignored. suboptions: filename: description: - The filename to be used to store the backup configuration. If the the filename is not given it will be generated based on the hostname, current time and date in format defined by <hostname>_config.<current-date>@<current-time> dir_path: description: - This option provides the path ending with directory name in which the backup configuration file will be stored. If the directory does not exist it will be first created and the filename is either the value of C(filename) or default filename as described in C(filename) options description. If the path value is not given in that case a I(backup) directory will be created in the current working directory and backup configuration will be copied in C(filename) within I(backup) directory. type: path type: dict version_added: "2.8" """ EXAMPLES = """ - name: configure top level configuration enos_config: "lines: hostname {{ inventory_hostname }}" - name: configure interface settings enos_config: lines: - enable - ip ospf enable parents: interface ip 13 - name: load a config from disk and replace the current config enos_config: src: config.cfg backup: yes - name: configurable backup path enos_config: src: config.cfg backup: yes backup_options: filename: backup.cfg dir_path: /home/user """ RETURN = """ updates: description: The set of commands that will be pushed to the remote device returned: Only when lines is specified. type: list sample: ['...', '...'] backup_path: description: The full path to the backup file returned: when backup is yes type: str sample: /playbooks/ansible/backup/enos01.2016-07-16@22:28:34 """ from ansible.module_utils.basic import AnsibleModule from ansible.module_utils.network.enos.enos import load_config, get_config from ansible.module_utils.network.enos.enos import enos_argument_spec from ansible.module_utils.network.enos.enos import check_args from ansible.module_utils.network.common.config import NetworkConfig, dumps DEFAULT_COMMIT_COMMENT = 'configured by enos_config' def get_running_config(module): contents = module.params['config'] if not contents: contents = get_config(module) return NetworkConfig(indent=1, contents=contents) def get_candidate(module): candidate = NetworkConfig(indent=1) if module.params['src']: candidate.load(module.params['src']) elif module.params['lines']: parents = module.params['parents'] or list() candidate.add(module.params['lines'], parents=parents) return candidate def run(module, result): match = module.params['match'] replace = module.params['replace'] replace_config = replace == 'config' path = module.params['parents'] comment = module.params['comment'] admin = module.params['admin'] check_mode = module.check_mode candidate = get_candidate(module) if match != 'none' and replace != 'config': contents = get_running_config(module) configobj = NetworkConfig(contents=contents, indent=1) commands = candidate.difference(configobj, path=path, match=match, replace=replace) else: commands = candidate.items if commands: commands = dumps(commands, 'commands').split('\n') if any((module.params['lines'], module.params['src'])): if module.params['before']: commands[:0] = module.params['before'] if module.params['after']: commands.extend(module.params['after']) result['commands'] = commands diff = load_config(module, commands) if diff: result['diff'] = dict(prepared=diff) result['changed'] = True def main(): """main entry point for module execution """ backup_spec = dict( filename=dict(), dir_path=dict(type='path') ) argument_spec = dict( src=dict(type='path'), lines=dict(aliases=['commands'], type='list'), parents=dict(type='list'), before=dict(type='list'), after=dict(type='list'), match=dict(default='line', choices=['line', 'strict', 'exact', 'none']), replace=dict(default='line', choices=['line', 'block', 'config']), config=dict(), backup=dict(type='bool', default=False), backup_options=dict(type='dict', options=backup_spec), comment=dict(default=DEFAULT_COMMIT_COMMENT), admin=dict(type='bool', default=False) ) argument_spec.update(enos_argument_spec) mutually_exclusive = [('lines', 'src'), ('parents', 'src')] required_if = [('match', 'strict', ['lines']), ('match', 'exact', ['lines']), ('replace', 'block', ['lines']), ('replace', 'config', ['src'])] module = AnsibleModule(argument_spec=argument_spec, mutually_exclusive=mutually_exclusive, required_if=required_if, supports_check_mode=True) warnings = list() check_args(module, warnings) result = dict(changed=False, warnings=warnings) if module.params['backup']: result['__backup__'] = get_config(module) run(module, result) module.exit_json(**result) if __name__ == '__main__': main()