community.general/lib/ansible/modules/network/edgeos/edgeos_config.py

277 lines
8.2 KiB
Python
Raw Normal View History

#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright (c) 2018 Ansible Project
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import absolute_import, division, print_function
__metaclass__ = type
ANSIBLE_METADATA = {'metadata_version': '1.1',
'status': ['preview'],
'supported_by': 'network'}
DOCUMENTATION = """
---
module: edgeos_config
version_added: "2.5"
author:
- "Nathaniel Case (@qalthos)"
- "Sam Doran (@samdoran)"
short_description: Manage EdgeOS configuration on remote device
description:
- This module provides configuration file management of EdgeOS
devices. It provides arguments for managing both the
configuration file and state of the active configuration. All
configuration statements are based on `set` and `delete` commands
in the device configuration.
notes:
- Tested against EdgeOS 1.9.7
options:
lines:
description:
- The ordered set of configuration lines to be managed and
compared with the existing configuration on the remote
device.
required: false
default: null
src:
description:
- The C(src) argument specifies the path to the source config
file to load. The source config file can either be in
bracket format or set format. The source file can include
Jinja2 template variables.
required: no
default: null
match:
description:
- The C(match) argument controls the method used to match
against the current active configuration. By default, the
desired config is matched against the active config and the
deltas are loaded. If the C(match) argument is set to C(none)
the active configuration is ignored and the configuration is
always loaded.
required: false
default: line
choices: ['line', 'none']
backup:
description:
- The C(backup) argument will backup the current devices active
configuration to the Ansible control host prior to making any
changes. The backup file will be located in the backup folder
in the root of the playbook
required: false
default: false
choices: ['yes', '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.
required: false
default: 'configured by edgeos_config'
config:
description:
- The C(config) argument specifies the base configuration to use
to compare against the desired configuration. If this value
is not specified, the module will automatically retrieve the
current active configuration from the remote device.
required: false
default: null
save:
description:
- The C(save) argument controls whether or not changes made
to the active configuration are saved to disk. This is
independent of committing the config. When set to C(True), the
active configuration is saved.
required: false
default: false
choices: ['yes', 'no']
"""
EXAMPLES = """
- name: configure the remote device
edgeos_config:
lines:
- set system host-name {{ inventory_hostname }}
- set service lldp
- delete service dhcp-server
- name: backup and load from file
edgeos_config:
src: edgeos.cfg
backup: yes
"""
RETURN = """
commands:
description: The list of configuration commands sent to the device
returned: always
type: list
sample: ['...', '...']
filtered:
description: The list of configuration commands removed to avoid a load failure
returned: always
type: list
sample: ['...', '...']
backup_path:
description: The full path to the backup file
returned: when backup is yes
type: string
sample: /playbooks/ansible/backup/edgeos_config.2016-07-16@22:28:34
"""
import re
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils.network.common.config import NetworkConfig
from ansible.module_utils.network.edgeos.edgeos import load_config, get_config, run_commands
DEFAULT_COMMENT = 'configured by edgeos_config'
CONFIG_FILTERS = [
re.compile(r'set system login user \S+ authentication encrypted-password')
]
def config_to_commands(config):
set_format = config.startswith('set') or config.startswith('delete')
candidate = NetworkConfig(indent=4, contents=config)
if not set_format:
candidate = [c.line for c in candidate.items]
commands = list()
# this filters out less specific lines
for item in candidate:
for index, entry in enumerate(commands):
if item.startswith(entry):
del commands[index]
break
commands.append(item)
commands = ['set %s' % cmd.replace(' {', '') for cmd in commands]
else:
commands = str(candidate).split('\n')
return commands
def get_candidate(module):
contents = module.params['src'] or module.params['lines']
if module.params['lines']:
contents = '\n'.join(contents)
return config_to_commands(contents)
def diff_config(commands, config):
config = [str(c).replace("'", '') for c in config.splitlines()]
updates = list()
visited = set()
for line in commands:
item = str(line).replace("'", '')
if not item.startswith('set') and not item.startswith('delete'):
raise ValueError('line must start with either `set` or `delete`')
elif item.startswith('set') and item not in config:
updates.append(line)
elif item.startswith('delete'):
if not config:
updates.append(line)
else:
item = re.sub(r'delete', 'set', item)
for entry in config:
if entry.startswith(item) and line not in visited:
updates.append(line)
visited.add(line)
return list(updates)
def sanitize_config(config, result):
result['filtered'] = list()
for regex in CONFIG_FILTERS:
for index, line in enumerate(list(config)):
if regex.search(line):
result['filtered'].append(line)
del config[index]
def run(module, result):
# get the current active config from the node or passed in via
# the config param
config = module.params['config'] or get_config(module)
# create the candidate config object from the arguments
candidate = get_candidate(module)
# create loadable config that includes only the configuration updates
commands = diff_config(candidate, config)
sanitize_config(commands, result)
result['commands'] = commands
commit = not module.check_mode
comment = module.params['comment']
if commands:
load_config(module, commands, commit=commit, comment=comment)
if result.get('filtered'):
result['warnings'].append('Some configuration commands were '
'removed, please see the filtered key')
result['changed'] = True
def main():
spec = dict(
src=dict(type='path'),
lines=dict(type='list'),
match=dict(default='line', choices=['line', 'none']),
comment=dict(default=DEFAULT_COMMENT),
config=dict(),
backup=dict(type='bool', default=False),
save=dict(type='bool', default=False),
)
mutually_exclusive = [('lines', 'src')]
module = AnsibleModule(
argument_spec=spec,
mutually_exclusive=mutually_exclusive,
supports_check_mode=True
)
warnings = list()
result = dict(changed=False, warnings=warnings)
if module.params['backup']:
result['__backup__'] = get_config(module=module)
if any((module.params['src'], module.params['lines'])):
run(module, result)
if module.params['save']:
diff = run_commands(module, commands=['configure', 'compare saved'])[1]
if diff != '[edit]':
run_commands(module, commands=['save'])
result['changed'] = True
run_commands(module, commands=['exit'])
module.exit_json(**result)
if __name__ == '__main__':
main()