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Addition of bigip_device_sshd module

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This module can be used as part of the bootstrapping of a BIG-IP. It
allows one to configure the various SSHD settings that are part of
a BIG-IP.

Tests for this module can be found here

https://github.com/F5Networks/f5-ansible/blob/master/roles/__bigip_device_sshd/tasks/main.yaml

Platforms this was tested on are

11.6.0
12.0.0
12.1.0
12.1.0 HF1
pull/18777/head
Tim Rupp 8 years ago committed by Matt Clay
parent 7a8b080506
commit 57c3ae838d
1 changed files with 344 additions and 0 deletions
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344
lib/ansible/modules/extras/network/f5/bigip_device_sshd.py
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#!/usr/bin/python
# -*- coding: utf-8 -*-
#
# 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: bigip_device_sshd
short_description: Manage the SSHD settings of a BIG-IP
description:
- Manage the SSHD settings of a BIG-IP
version_added: "2.2"
options:
allow:
description:
- Specifies, if you have enabled SSH access, the IP address or address
range for other systems that can use SSH to communicate with this
system.
choices:
- all
- IP address, such as 172.27.1.10
- IP range, such as 172.27.*.* or 172.27.0.0/255.255.0.0
banner:
description:
- Whether to enable the banner or not.
required: false
choices:
- enabled
- disabled
banner_text:
description:
- Specifies the text to include on the pre-login banner that displays
when a user attempts to login to the system using SSH.
required: false
inactivity_timeout:
description:
- Specifies the number of seconds before inactivity causes an SSH
session to log out.
required: false
log_level:
description:
- Specifies the minimum SSHD message level to include in the system log.
choices:
- debug
- debug1
- debug2
- debug3
- error
- fatal
- info
- quiet
- verbose
login:
description:
- Specifies, when checked C(enabled), that the system accepts SSH
communications.
choices:
- enabled
- disabled
required: false
port:
description:
- Port that you want the SSH daemon to run on.
required: false
notes:
- Requires the f5-sdk Python package on the host This is as easy as pip
install f5-sdk.
- Requires BIG-IP version 12.0.0 or greater
extends_documentation_fragment: f5
requirements:
- f5-sdk
author:
- Tim Rupp (@caphrim007)
'''
EXAMPLES = '''
- name: Set the banner for the SSHD service from a string
bigip_device_sshd:
banner: "enabled"
banner_text: "banner text goes here"
password: "secret"
server: "lb.mydomain.com"
user: "admin"
delegate_to: localhost
- name: Set the banner for the SSHD service from a file
bigip_device_sshd:
banner: "enabled"
banner_text: "{{ lookup('file', '/path/to/file') }}"
password: "secret"
server: "lb.mydomain.com"
user: "admin"
delegate_to: localhost
- name: Set the SSHD service to run on port 2222
bigip_device_sshd:
password: "secret"
port: 2222
server: "lb.mydomain.com"
user: "admin"
delegate_to: localhost
'''
RETURN = '''
allow:
description: |
Specifies, if you have enabled SSH access, the IP address or address
range for other systems that can use SSH to communicate with this
system.
returned: changed
type: list
sample: "192.168.*.*"
banner:
description: Whether the banner is enabled or not.
returned: changed
type: string
sample: "true"
banner_text:
description: |
Specifies the text included on the pre-login banner that
displays when a user attempts to login to the system using SSH.
returned: changed and success
type: string
sample: "This is a corporate device. Connecting to it without..."
inactivity_timeout:
description: |
The number of seconds before inactivity causes an SSH.
session to log out
returned: changed
type: int
sample: "10"
log_level:
description: The minimum SSHD message level to include in the system log.
returned: changed
type: string
sample: "debug"
login:
description: Specifies that the system accepts SSH communications or not.
return: changed
type: bool
sample: true
port:
description: Port that you want the SSH daemon to run on.
return: changed
type: int
sample: 22
'''
try:
from f5.bigip import ManagementRoot
from icontrol.session import iControlUnexpectedHTTPError
HAS_F5SDK = True
except ImportError:
HAS_F5SDK = False
CHOICES = ['enabled', 'disabled']
LEVELS = ['debug', 'debug1', 'debug2', 'debug3', 'error', 'fatal', 'info',
'quiet', 'verbose']
class BigIpDeviceSshd(object):
def __init__(self, *args, **kwargs):
if not HAS_F5SDK:
raise F5ModuleError("The python f5-sdk module is required")
# The params that change in the module
self.cparams = dict()
# Stores the params that are sent to the module
self.params = kwargs
self.api = ManagementRoot(kwargs['server'],
kwargs['user'],
kwargs['password'],
port=kwargs['server_port'])
def update(self):
changed = False
current = self.read()
params = dict()
allow = self.params['allow']
banner = self.params['banner']
banner_text = self.params['banner_text']
timeout = self.params['inactivity_timeout']
log_level = self.params['log_level']
login = self.params['login']
port = self.params['port']
check_mode = self.params['check_mode']
if allow:
if 'allow' in current:
items = set(allow)
if items != current['allow']:
params['allow'] = list(items)
else:
params['allow'] = allow
if banner:
if 'banner' in current:
if banner != current['banner']:
params['banner'] = banner
else:
params['banner'] = banner
if banner_text:
if 'banner_text' in current:
if banner_text != current['banner_text']:
params['bannerText'] = banner_text
else:
params['bannerText'] = banner_text
if timeout:
if 'inactivity_timeout' in current:
if timeout != current['inactivity_timeout']:
params['inactivityTimeout'] = timeout
else:
params['inactivityTimeout'] = timeout
if log_level:
if 'log_level' in current:
if log_level != current['log_level']:
params['logLevel'] = log_level
else:
params['logLevel'] = log_level
if login:
if 'login' in current:
if login != current['login']:
params['login'] = login
else:
params['login'] = login
if port:
if 'port' in current:
if port != current['port']:
params['port'] = port
else:
params['port'] = port
if params:
changed = True
if check_mode:
return changed
self.cparams = camel_dict_to_snake_dict(params)
else:
return changed
r = self.api.tm.sys.sshd.load()
r.update(**params)
r.refresh()
return changed
def read(self):
"""Read information and transform it
The values that are returned by BIG-IP in the f5-sdk can have encoding
attached to them as well as be completely missing in some cases.
Therefore, this method will transform the data from the BIG-IP into a
format that is more easily consumable by the rest of the class and the
parameters that are supported by the module.
"""
p = dict()
r = self.api.tm.sys.sshd.load()
if hasattr(r, 'allow'):
# Deliberately using sets to supress duplicates
p['allow'] = set([str(x) for x in r.allow])
if hasattr(r, 'banner'):
p['banner'] = str(r.banner)
if hasattr(r, 'bannerText'):
p['banner_text'] = str(r.bannerText)
if hasattr(r, 'inactivityTimeout'):
p['inactivity_timeout'] = str(r.inactivityTimeout)
if hasattr(r, 'logLevel'):
p['log_level'] = str(r.logLevel)
if hasattr(r, 'login'):
p['login'] = str(r.login)
if hasattr(r, 'port'):
p['port'] = int(r.port)
return p
def flush(self):
result = dict()
changed = False
try:
changed = self.update()
except iControlUnexpectedHTTPError as e:
raise F5ModuleError(str(e))
result.update(**self.cparams)
result.update(dict(changed=changed))
return result
def main():
argument_spec = f5_argument_spec()
meta_args = dict(
allow=dict(required=False, default=None, type='list'),
banner=dict(required=False, default=None, choices=CHOICES),
banner_text=dict(required=False, default=None),
inactivity_timeout=dict(required=False, default=None, type='int'),
log_level=dict(required=False, default=None, choices=LEVELS),
login=dict(required=False, default=None, choices=CHOICES),
port=dict(required=False, default=None, type='int'),
state=dict(default='present', choices=['present'])
)
argument_spec.update(meta_args)
module = AnsibleModule(
argument_spec=argument_spec,
supports_check_mode=True
)
try:
obj = BigIpDeviceSshd(check_mode=module.check_mode, **module.params)
result = obj.flush()
module.exit_json(**result)
except F5ModuleError as e:
module.fail_json(msg=str(e))
from ansible.module_utils.basic import *
from ansible.module_utils.ec2 import camel_dict_to_snake_dict
from ansible.module_utils.f5 import *
if __name__ == '__main__':
main()
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