ansible/network/nxos/nxos_aaa_server.py
2016-09-15 09:35:09 +02:00

567 lines
No EOL
18 KiB
Python

#!/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 <http://www.gnu.org/licenses/>.
#
DOCUMENTATION = '''
---
module: nxos_aaa_server
version_added: "2.2"
short_description: Manages AAA server global configuration.
description:
- Manages AAA server global configuration
extends_documentation_fragment: nxos
author:
- Jason Edelman (@jedelman8)
notes:
- The server_type parameter is always required.
- If encrypt_type is not supplied, the global AAA server key will be
stored as encrypted (type 7).
- Changes to the global AAA server key with encrypt_type=0
are not idempotent.
- If global AAA server key is not found, it's shown as "unknown"
- state=default will set the supplied parameters to their default values.
The parameters that you want to default must also be set to default.
If global_key=default, the global key will be removed.
options:
server_type:
description:
- The server type is either radius or tacacs.
required: true
choices: ['radius', 'tacacs']
global_key:
description:
- Global AAA shared secret.
required: false
default: null
encrypt_type:
description:
- The state of encryption applied to the entered global key.
O clear text, 7 encrypted. Type-6 encryption is not supported.
required: false
default: null
choices: ['0', '7']
deadtime:
description:
- Duration for which a non-reachable AAA server is skipped,
in minutes. Range is 1-1440. Device default is 0.
required: false
default: null
server_timeout:
description:
- Global AAA server timeout period, in seconds. Range is 1-60.
Device default is 5.
required: false
default: null
directed_request:
description:
- Enables direct authentication requests to AAA server.
Device default is disabled.
required: false
default: null
choices: ['enabled', 'disabled']
state:
description:
- Manage the state of the resource.
required: true
default: present
choices: ['present','default']
'''
EXAMPLES = '''
# Radius Server Basic settings
- name: "Radius Server Basic settings"
nxos_aaa_server:
server_type=radius
server_timeout=9
deadtime=20
directed_request=enabled
host={{ inventory_hostname }}
username={{ un }}
password={{ pwd }}
# Tacacs Server Basic settings
- name: "Tacacs Server Basic settings"
nxos_aaa_server:
server_type=tacacs
server_timeout=8
deadtime=19
directed_request=disabled
host={{ inventory_hostname }}
username={{ un }}
password={{ pwd }}
# Setting Global Key
- name: "AAA Server Global Key"
nxos_aaa_server:
server_type=radius
global_key=test_key
host={{ inventory_hostname }}
username={{ un }}
password={{ pwd }}
'''
RETURN = '''
proposed:
description: k/v pairs of parameters passed into module
returned: always
type: dict
sample: {"deadtime": "22", "directed_request": "enabled",
"server_type": "radius", "server_timeout": "11"}
existing:
description:
- k/v pairs of existing aaa server
type: dict
sample: {"deadtime": "0", "directed_request": "disabled",
"global_key": "unknown", "server_timeout": "5"}
end_state:
description: k/v pairs of aaa params after module execution
returned: always
type: dict
sample: {"deadtime": "22", "directed_request": "enabled",
"global_key": "unknown", "server_timeout": "11"}
state:
description: state as sent in from the playbook
returned: always
type: string
sample: "present"
updates:
description: command sent to the device
returned: always
type: list
sample: ["radius-server deadtime 22", "radius-server timeout 11",
"radius-server directed-request"]
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 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'):
cmds = [command]
if module.params['transport'] == 'cli':
body = execute_show(cmds, module)
elif module.params['transport'] == 'nxapi':
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 get_aaa_server_info(server_type, module):
aaa_server_info = {}
server_command = 'show {0}-server'.format(server_type)
request_command = 'show {0}-server directed-request'.format(server_type)
global_key_command = 'show run | sec {0}'.format(server_type)
aaa_regex = '.*{0}-server\skey\s\d\s+(?P<key>\S+).*'.format(server_type)
server_body = execute_show_command(
server_command, module, command_type='cli_show_ascii')[0]
split_server = server_body.splitlines()
for line in split_server:
if line.startswith('timeout'):
aaa_server_info['server_timeout'] = line.split(':')[1]
elif line.startswith('deadtime'):
aaa_server_info['deadtime'] = line.split(':')[1]
request_body = execute_show_command(
request_command, module, command_type='cli_show_ascii')[0]
aaa_server_info['directed_request'] = request_body.replace('\n', '')
key_body = execute_show_command(
global_key_command, module, command_type='cli_show_ascii')[0]
try:
match_global_key = re.match(aaa_regex, key_body, re.DOTALL)
group_key = match_global_key.groupdict()
aaa_server_info['global_key'] = group_key["key"].replace('\"', '')
except (AttributeError, TypeError):
aaa_server_info['global_key'] = 'unknown'
return aaa_server_info
def set_aaa_server_global_key(encrypt_type, key, server_type):
if not encrypt_type:
encrypt_type = ''
return '{0}-server key {1} {2}'.format(
server_type, encrypt_type, key)
def config_aaa_server(params, server_type):
cmds = []
deadtime = params.get('deadtime')
server_timeout = params.get('server_timeout')
directed_request = params.get('directed_request')
encrypt_type = params.get('encrypt_type', '7')
global_key = params.get('global_key')
if deadtime is not None:
cmds.append('{0}-server deadtime {1}'.format(server_type, deadtime))
if server_timeout is not None:
cmds.append('{0}-server timeout {1}'.format(server_type, server_timeout))
if directed_request is not None:
if directed_request == 'enabled':
cmds.append('{0}-server directed-request'.format(server_type))
elif directed_request == 'disabled':
cmds.append('no {0}-server directed-request'.format(server_type))
if global_key is not None:
cmds.append('{0}-server key {1} {2}'.format(server_type, encrypt_type,
global_key))
return cmds
def default_aaa_server(existing, params, server_type):
cmds = []
deadtime = params.get('deadtime')
server_timeout = params.get('server_timeout')
directed_request = params.get('directed_request')
global_key = params.get('global_key')
existing_key = existing.get('global_key')
if deadtime is not None:
cmds.append('no {0}-server deadtime 1'.format(server_type))
if server_timeout is not None:
cmds.append('no {0}-server timeout 1'.format(server_type))
if directed_request is not None:
cmds.append('no {0}-server directed-request'.format(server_type))
if global_key is not None and existing_key is not None:
cmds.append('no {0}-server key 7 {1}'.format(server_type, existing_key))
return cmds
def main():
argument_spec = dict(
server_type=dict(type='str',
choices=['radius', 'tacacs'], required=True),
global_key=dict(type='str'),
encrypt_type=dict(type='str', choices=['0', '7']),
deadtime=dict(type='str'),
server_timeout=dict(type='str'),
directed_request=dict(type='str',
choices=['enabled', 'disabled', 'default']),
state=dict(choices=['default', 'present'], default='present'),
)
module = get_network_module(argument_spec=argument_spec,
supports_check_mode=True)
server_type = module.params['server_type']
global_key = module.params['global_key']
encrypt_type = module.params['encrypt_type']
deadtime = module.params['deadtime']
server_timeout = module.params['server_timeout']
directed_request = module.params['directed_request']
state = module.params['state']
if encrypt_type and not global_key:
module.fail_json(msg='encrypt_type must be used with global_key.')
args = dict(server_type=server_type, global_key=global_key,
encrypt_type=encrypt_type, deadtime=deadtime,
server_timeout=server_timeout, directed_request=directed_request)
changed = False
proposed = dict((k, v) for k, v in args.iteritems() if v is not None)
existing = get_aaa_server_info(server_type, module)
end_state = existing
commands = []
if state == 'present':
if deadtime:
try:
if int(deadtime) < 0 or int(deadtime) > 1440:
raise ValueError
except ValueError:
module.fail_json(
msg='deadtime must be an integer between 0 and 1440')
if server_timeout:
try:
if int(server_timeout) < 1 or int(server_timeout) > 60:
raise ValueError
except ValueError:
module.fail_json(
msg='server_timeout must be an integer between 1 and 60')
delta = dict(set(proposed.iteritems()).difference(
existing.iteritems()))
if delta:
command = config_aaa_server(delta, server_type)
if command:
commands.append(command)
elif state == 'default':
for key, value in proposed.iteritems():
if key != 'server_type' and value != 'default':
module.fail_json(
msg='Parameters must be set to "default"'
'when state=default')
command = default_aaa_server(existing, proposed, server_type)
if command:
commands.append(command)
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_aaa_server_info(server_type, module)
results = {}
results['proposed'] = proposed
results['existing'] = existing
results['updates'] = cmds
results['changed'] = changed
results['end_state'] = end_state
module.exit_json(**results)
if __name__ == '__main__':
main()