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#!/usr/bin/python
# -*- coding: utf-8 -*-
#
# Copyright: (c) 2019, F5 Networks Inc.
# 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': 'certified'}
DOCUMENTATION = r'''
---
module: bigip_device_certificate
short_description: Manage self-signed device certificates
description:
- Module used to create and/or renew self-signed device certificates for BIG-IP.
version_added: 2.9
options:
days_valid:
description:
- Specifies the interval for which the self-signed certificate is valid.
- "The maximum value is 25 years: C(9125) days"
type: int
required: True
cert_name:
description:
- Specifies the full name of the certificate file.
- If the name is not default C(server.crt), the module will configure C(httpd) to use them
prior to restarting the C(httpd) daemon.
type: str
default: server.crt
key_name:
description:
- Specifies the full name of the key file.
- If the name is not default C(server.key), the module will configure C(httpd) to use them
prior to restarting the C(httpd) daemon.
type: str
default: server.key
key_size:
description:
- Specifies the desired key size in bits.
- Mandatory option when generating a new certificate.
type: int
choices:
- 512
- 1024
- 2048
- 4096
default: 2048
issuer:
description:
- Certificate properties, required when generating new certificates.
suboptions:
country:
description:
- Specifies the Country name attribute for the certificate.
type: str
state:
description:
- Specifies the State or Province attribute for the certificate.
type: str
locality:
description:
- Specifies the city or town name for the certificate.
type: str
organization:
description:
- Specifies the Organization attribute for the certificate.
type: str
division:
description:
- Specifies the department name attribute for the certificate.
type: str
common_name:
description:
- Specifies Common Name attribute for the certificate.
type: str
email:
description:
- "Specifies the domain administrator's email address."
type: str
type: dict
add_to_trusted:
description:
- Specified if the certificate should be added to the trusted client and server certificate files.
type: bool
default: no
new_cert:
description:
- Specified if the module should generate new certificate.
- When C(yes) the device certificate and key will be replaced
type: bool
default: no
force:
description:
- When C(yes), will update or overwrite the existing certificate when it is not expired device.
- When C(no), the certificate will only be updated/overwritten if expired.
- Generally should be C(yes) only in cases where you need to update certificate that is about to expire.
- This option is also needed when generating new certificate to replace non expired one.
type: bool
default: no
transport:
description:
- Configures the transport connection to use when connecting to the
remote device.
- This module currently supports only connectivity to the device over cli (ssh).
required: True
choices:
- cli
default: cli
extends_documentation_fragment: f5
author:
- Wojciech Wypior (@wojtek0806)
'''
EXAMPLES = r'''
- name: Update expired certificate
bigip_device_certificate:
days_valid: 365
provider:
password: secret
server: lb.mydomain.com
user: admin
transport: cli
server_port: 22
delegate_to: localhost
- name: Update expired certificate non-default names
bigip_device_certificate:
days_valid: 60
cert_name: custom.crt
key_name: custom.key
provider:
password: secret
server: lb.mydomain.com
user: admin
transport: cli
server_port: 22
delegate_to: localhost
- name: Force update not expired certificate
bigip_device_certificate:
days_valid: 365
force: yes
provider:
password: secret
server: lb.mydomain.com
user: admin
transport: cli
server_port: 22
delegate_to: localhost
- name: Create a new certificate to replace expired certificate
bigip_device_certificate:
days_valid: 365
new_cert: yes
issuer:
country: US
state: WA
common_name: foobar.foo.local
provider:
password: secret
server: lb.mydomain.com
user: admin
transport: cli
server_port: 22
delegate_to: localhost
- name: Force create a new custom named certificate to replace not expired certificate
bigip_device_certificate:
days_valid: 365
cert_name: custom.crt
key_name: custom.key
new_cert: yes
force: yes
issuer:
country: US
state: WA
common_name: foobar.foo.local
key_size: 2048
provider:
password: secret
server: lb.mydomain.com
user: admin
transport: cli
server_port: 22
delegate_to: localhost
'''
RETURN = r'''
days_valid:
description: The interval for which the self-signed certificate is valid.
returned: changed
type: int
sample: 365
issuer:
description: Specifies certificate properties.
type: complex
returned: changed
contains:
country:
description: The Country name attribute of the certificate.
returned: changed
type: str
sample: US
state:
description: The State or Province attribute of the certificate.
returned: changed
type: str
sample: WA
locality:
description: The city or town name attribute of the certificate.
returned: changed
type: str
sample: Seattle
organization:
description: The Organization attribute of the certificate.
returned: changed
type: str
sample: F5
division:
description: The department name attribute of the certificate.
returned: changed
type: str
sample: IT
common_name:
description: The Common Name attribute of the certificate.
returned: changed
type: str
sample: foo.bar.local
email:
description: "The domain administrator's email address."
returned: changed
type: str
sample: admin@foo.bar.local
cert_name:
description: The full name of the certificate file.
returned: changed
type: str
sample: common.crt
key_name:
description: The full name of the key file.
returned: changed
type: str
sample: common.key
key_size:
description: The desired key size in bits.
returned: changed
type: int
sample: 2048
'''
import os
import ssl
from datetime import datetime
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils.connection import exec_command
try:
from library.module_utils.network.f5.common import F5ModuleError
from library.module_utils.network.f5.common import AnsibleF5Parameters
from library.module_utils.network.f5.common import f5_argument_spec
from library.module_utils.network.f5.common import is_cli
except ImportError:
from ansible.module_utils.network.f5.common import F5ModuleError
from ansible.module_utils.network.f5.common import AnsibleF5Parameters
from ansible.module_utils.network.f5.common import f5_argument_spec
from ansible.module_utils.network.f5.common import is_cli
class Parameters(AnsibleF5Parameters):
returnables = [
'days_valid',
'issuer',
'key_size',
'cert_name',
'key_name',
]
updatables = [
'days_valid',
]
class ApiParameters(Parameters):
pass
class ModuleParameters(Parameters):
issuer_map = {
'country': 'C',
'state': 'ST',
'locality': 'L',
'organization': 'O',
'division': 'OU',
'common_name': 'CN',
'email': 'emailAddress'
}
@property
def issuer(self):
if self._values['issuer'] is None:
return None
filtered = dict((self.issuer_map[k], v) for k, v in self._values['issuer'].items() if v is not None)
to_parse = ['{0}={1}'.format(k, v) for k, v in filtered.items()]
result = '/' + '/'.join(to_parse) + '/'
return result
@property
def days_valid(self):
if 1 <= self._values['days_valid'] <= 9125:
return self._values['days_valid']
raise F5ModuleError(
"Valid 'days_valid' must be in range 1 - 9125 days."
)
class Changes(Parameters):
def to_return(self):
result = {}
try:
for returnable in self.returnables:
result[returnable] = getattr(self, returnable)
result = self._filter_params(result)
except Exception:
pass
return result
class UsableChanges(Changes):
pass
class ReportableChanges(Changes):
issuer_map = {
'C': 'country',
'ST': 'state',
'L': 'locality',
'O': 'organization',
'OU': 'division',
'CN': 'common_name',
'emailAddress': 'email'
}
@property
def issuer(self):
if self._values['issuer'] is None:
return None
to_dict = [tuple(item.split('=')) for item in self._values['issuer'].strip('/').split('/')]
result = dict((self.issuer_map[k], v) for k, v in to_dict)
return result
class Difference(object):
def __init__(self, want, have=None):
self.want = want
self.have = have
def compare(self, param):
try:
result = getattr(self, param)
return result
except AttributeError:
return self.__default(param)
def __default(self, param):
attr1 = getattr(self.want, param)
try:
attr2 = getattr(self.have, param)
if attr1 != attr2:
return attr1
except AttributeError:
return attr1
class ModuleManager(object):
def __init__(self, *args, **kwargs):
self.module = kwargs.get('module', None)
self.want = ModuleParameters(params=self.module.params)
self.have = ApiParameters()
self.changes = UsableChanges()
def _set_changed_options(self):
changed = {}
for key in Parameters.returnables:
if getattr(self.want, key) is not None:
changed[key] = getattr(self.want, key)
if changed:
self.changes = UsableChanges(params=changed)
def _update_changed_options(self):
diff = Difference(self.want, self.have)
updatables = Parameters.updatables
changed = dict()
for k in updatables:
change = diff.compare(k)
if change is None:
continue
else:
if isinstance(change, dict):
changed.update(change)
else:
changed[k] = change
if changed:
self.changes = UsableChanges(params=changed)
return True
return False
def exec_module(self):
if not is_cli(self.module):
raise F5ModuleError('Module can only be run via SSH, set the transport property to CLI')
result = dict()
changed = self.present()
reportable = ReportableChanges(params=self.changes.to_return())
changes = reportable.to_return()
result.update(**changes)
result.update(dict(changed=changed))
return result
def present(self):
if self.expired():
if self.want.new_cert:
self.create()
return True
self.update()
return True
if self.want.force and self.want.new_cert:
self.create()
return True
if self.want.force:
self.update()
return True
return False
def create(self):
self._set_changed_options()
if self.module.check_mode:
return True
self.generate_new()
return True
def update(self):
self._update_changed_options()
if self.module.check_mode:
return True
self.update_certificate()
if self.want.cert_name != 'server.crt' or self.want.key_name != 'server.key':
self.configure_new_cert()
self.restart_daemon()
if self.want.add_to_trusted:
self.copy_files_to_trusted()
return True
def expired(self):
self.have = self.read_current_certificate()
current_epoch = int(datetime.now().timestamp())
if current_epoch > self.have.epoch:
return True
return False
def generate_new(self):
self.generate_cert_key()
if self.want.cert_name != 'server.crt' or self.want.key_name != 'server.key':
self.configure_new_cert()
self.restart_daemon()
if self.want.add_to_trusted:
self.copy_files_to_trusted()
return True
def generate_cert_key(self):
cmd = 'openssl req -x509 -nodes -days {3} -newkey rsa:{4} -keyout {0}/ssl.key/{2} ' \
'-out {0}/ssl.crt/{1} -subj "{5}"'.format('/config/httpd/conf', self.want.cert_name, self.want.key_name,
self.want.days_valid, self.want.key_size, self.want.issuer)
rc, out, err = exec_command(self.module, cmd)
if rc != 0:
raise F5ModuleError(err)
def create_csr(self):
cmd = 'openssl x509 -x509toreq -in {0}/ssl.crt/{1} -out {0}/ssl.csr/{3}.csr -signkey {0}/ssl.key/{2}'.format(
'/config/httpd/conf', self.want.cert_name, self.want.key_name, os.path.splitext(self.want.cert_name)[0]
)
rc, out, err = exec_command(self.module, cmd)
if rc != 0:
raise F5ModuleError(err)
def update_certificate(self):
self.create_csr()
cmd = 'openssl x509 -req -in {0}/ssl.csr/{3}.csr -signkey {0}/ssl.key/{2} -days {4} -out {0}/ssl.crt/{1}'.\
format('/config/httpd/conf', self.want.cert_name, self.want.key_name,
os.path.splitext(self.want.cert_name)[0], self.want.days_valid)
rc, out, err = exec_command(self.module, cmd)
if rc != 0:
raise F5ModuleError(err)
def configure_new_cert(self):
cmd1 = 'tmsh modify sys httpd ssl-certkeyfile /config/httpd/conf/ssl.key/{1}' \
'ssl-certfile /config/httpd/conf/ssl.crt/{0}'.format(self.want.cert_name, self.want.key_name)
cmd2 = 'tmsh save /sys config partitions all'
rc, out, err = exec_command(self.module, cmd1)
if rc != 0:
raise F5ModuleError(err)
rc, out, err = exec_command(self.module, cmd2)
if rc != 0:
raise F5ModuleError(err)
def restart_daemon(self):
cmd = 'tmsh restart /sys service httpd'
rc, out, err = exec_command(self.module, cmd)
if rc != 0:
raise F5ModuleError(err)
def copy_files_to_trusted(self):
cmd1 = 'cat /config/httpd/conf/ssl.crt/{0} >> /config/big3d/client.crt'.format(self.want.cert_name)
cmd2 = 'cat /config/httpd/conf/ssl.crt/{0} >> /config/gtm/server.crt'.format(self.want.cert_name)
rc, out, err = exec_command(self.module, cmd1)
if rc != 0:
raise F5ModuleError(err)
rc, out, err = exec_command(self.module, cmd2)
if rc != 0:
raise F5ModuleError(err)
def read_current_certificate(self):
result = dict()
command = 'openssl x509 -in /config/httpd/conf/ssl.crt/{0} -dates -issuer -noout'.format(self.want.cert_name)
rc, out, err = exec_command(self.module, command)
if rc == 0:
result['epoch'] = self._parse_cert_date(out)
return ApiParameters(params=result)
def _parse_cert_date(self, to_parse):
c_time = to_parse.split('\n')[1].split('=')[1]
result = ssl.cert_time_to_seconds(c_time)
return result
class ArgumentSpec(object):
def __init__(self):
self.supports_check_mode = True
argument_spec = dict(
key_size=dict(
type='int',
choices=[512, 1024, 2048, 4096],
default=2048
),
cert_name=dict(
default='server.crt'
),
key_name=dict(
default='server.key'
),
days_valid=dict(
type='int',
required=True
),
issuer=dict(
type='dict',
options=dict(
country=dict(),
state=dict(),
locality=dict(),
organization=dict(),
division=dict(),
common_name=dict(),
email=dict(),
),
required_one_of=[
['country', 'state', 'locality', 'organization', 'division', 'common_name', 'email']
]
),
add_to_trusted=dict(
type='bool',
default='no'
),
new_cert=dict(
type='bool',
default='no'
),
force=dict(
type='bool',
default='no'
),
transport=dict(
type='str',
default='cli',
choices=['cli']
),
)
self.argument_spec = {}
self.argument_spec.update(f5_argument_spec)
self.argument_spec.update(argument_spec)
self.required_if = [
['new_cert', 'yes', ['days_valid', 'issuer', 'key_size']]
]
def main():
spec = ArgumentSpec()
module = AnsibleModule(
argument_spec=spec.argument_spec,
supports_check_mode=spec.supports_check_mode,
required_if=spec.required_if,
)
try:
mm = ModuleManager(module=module)
results = mm.exec_module()
module.exit_json(**results)
except F5ModuleError as ex:
module.fail_json(msg=str(ex))
if __name__ == '__main__':
main()
|