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#!/usr/bin/python
# -*- coding: utf-8 -*-
#
# Copyright: (c) 2017, 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': 'community'}
DOCUMENTATION = r'''
---
module: bigip_monitor_udp
short_description: Manages F5 BIG-IP LTM udp monitors
description: Manages F5 BIG-IP LTM udp monitors.
version_added: "2.5"
options:
name:
description:
- Monitor name.
required: True
aliases:
- monitor
parent:
description:
- The parent template of this monitor template. Once this value has
been set, it cannot be changed. By default, this value is the C(udp)
parent on the C(Common) partition.
default: "/Common/udp"
send:
description:
- The send string for the monitor call. When creating a new monitor, if
this value is not provided, the default C(default send string) will be used.
receive:
description:
- The receive string for the monitor call.
receive_disable:
description:
- This setting works like C(receive), except that the system marks the node
or pool member disabled when its response matches the C(receive_disable)
string but not C(receive). To use this setting, you must specify both
C(receive_disable) and C(receive).
ip:
description:
- IP address part of the IP/port definition. If this parameter is not
provided when creating a new monitor, then the default value will be
'*'.
port:
description:
- Port address part of the IP/port definition. If this parameter is not
provided when creating a new monitor, then the default value will be
'*'. Note that if specifying an IP address, a value between 1 and 65535
must be specified.
interval:
description:
- The interval specifying how frequently the monitor instance of this
template will run. If this parameter is not provided when creating
a new monitor, then the default value will be 5. This value B(must)
be less than the C(timeout) value.
timeout:
description:
- The number of seconds in which the node or service must respond to
the monitor request. If the target responds within the set time
period, it is considered up. If the target does not respond within
the set time period, it is considered down. You can change this
number to any number you want, however, it should be 3 times the
interval number of seconds plus 1 second. If this parameter is not
provided when creating a new monitor, then the default value will be 16.
time_until_up:
description:
- Specifies the amount of time in seconds after the first successful
response before a node will be marked up. A value of 0 will cause a
node to be marked up immediately after a valid response is received
from the node. If this parameter is not provided when creating
a new monitor, then the default value will be 0.
partition:
description:
- Device partition to manage resources on.
default: Common
version_added: 2.5
notes:
- Requires the f5-sdk Python package on the host. This is as easy as pip
install f5-sdk.
- Requires BIG-IP software version >= 12
requirements:
- f5-sdk >= 2.2.3
extends_documentation_fragment: f5
author:
- Tim Rupp (@caphrim007)
'''
EXAMPLES = r'''
- name: Create UDP Monitor
bigip_monitor_udp:
state: present
ip: 10.10.10.10
server: lb.mydomain.com
user: admin
password: secret
name: my_udp_monitor
delegate_to: localhost
- name: Remove UDP Monitor
bigip_monitor_udp:
state: absent
server: lb.mydomain.com
user: admin
password: secret
name: my_udp_monitor
delegate_to: localhost
'''
RETURN = r'''
parent:
description: New parent template of the monitor.
returned: changed
type: string
sample: http
ip:
description: The new IP of IP/port definition.
returned: changed
type: string
sample: 10.12.13.14
interval:
description: The new interval in which to run the monitor check.
returned: changed
type: int
sample: 2
timeout:
description: The new timeout in which the remote system must respond to the monitor.
returned: changed
type: int
sample: 10
time_until_up:
description: The new time in which to mark a system as up after first successful response.
returned: changed
type: int
sample: 2
'''
import os
try:
import netaddr
HAS_NETADDR = True
except ImportError:
HAS_NETADDR = False
from ansible.module_utils.f5_utils import AnsibleF5Client
from ansible.module_utils.f5_utils import AnsibleF5Parameters
from ansible.module_utils.f5_utils import HAS_F5SDK
from ansible.module_utils.f5_utils import F5ModuleError
from ansible.module_utils.six import iteritems
from collections import defaultdict
try:
from ansible.module_utils.f5_utils import iControlUnexpectedHTTPError
except ImportError:
HAS_F5SDK = False
class Parameters(AnsibleF5Parameters):
api_map = {
'timeUntilUp': 'time_until_up',
'defaultsFrom': 'parent',
'recv': 'receive'
}
api_attributes = [
'timeUntilUp', 'defaultsFrom', 'interval', 'timeout', 'recv', 'send',
'destination'
]
returnables = [
'parent', 'send', 'receive', 'ip', 'port', 'interval', 'timeout',
'time_until_up'
]
updatables = [
'destination', 'send', 'receive', 'interval', 'timeout', 'time_until_up'
]
def __init__(self, params=None):
self._values = defaultdict(lambda: None)
self._values['__warnings'] = []
if params:
self.update(params=params)
def update(self, params=None):
if params:
for k, v in iteritems(params):
if self.api_map is not None and k in self.api_map:
map_key = self.api_map[k]
else:
map_key = k
# Handle weird API parameters like `dns.proxy.__iter__` by
# using a map provided by the module developer
class_attr = getattr(type(self), map_key, None)
if isinstance(class_attr, property):
# There is a mapped value for the api_map key
if class_attr.fset is None:
# If the mapped value does not have
# an associated setter
self._values[map_key] = v
else:
# The mapped value has a setter
setattr(self, map_key, v)
else:
# If the mapped value is not a @property
self._values[map_key] = v
def _fqdn_name(self, value):
if value is not None and not value.startswith('/'):
return '/{0}/{1}'.format(self.partition, value)
return value
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
def api_params(self):
result = {}
for api_attribute in self.api_attributes:
if self.api_map is not None and api_attribute in self.api_map:
result[api_attribute] = getattr(self, self.api_map[api_attribute])
else:
result[api_attribute] = getattr(self, api_attribute)
result = self._filter_params(result)
return result
@property
def destination(self):
if self.ip is None and self.port is None:
return None
destination = '{0}:{1}'.format(self.ip, self.port)
return destination
@destination.setter
def destination(self, value):
ip, port = value.split(':')
self._values['ip'] = ip
self._values['port'] = port
@property
def interval(self):
if self._values['interval'] is None:
return None
# Per BZ617284, the BIG-IP UI does not raise a warning about this.
# So I do
if 1 > int(self._values['interval']) > 86400:
raise F5ModuleError(
"Interval value must be between 1 and 86400"
)
return int(self._values['interval'])
@property
def timeout(self):
if self._values['timeout'] is None:
return None
return int(self._values['timeout'])
@property
def ip(self):
if self._values['ip'] is None:
return None
try:
if self._values['ip'] in ['*', '0.0.0.0']:
return '*'
result = str(netaddr.IPAddress(self._values['ip']))
return result
except netaddr.core.AddrFormatError:
raise F5ModuleError(
"The provided 'ip' parameter is not an IP address."
)
@property
def port(self):
if self._values['port'] is None:
return None
elif self._values['port'] == '*':
return '*'
return int(self._values['port'])
@property
def time_until_up(self):
if self._values['time_until_up'] is None:
return None
return int(self._values['time_until_up'])
@property
def parent(self):
if self._values['parent'] is None:
return None
if self._values['parent'].startswith('/'):
parent = os.path.basename(self._values['parent'])
result = '/{0}/{1}'.format(self.partition, parent)
else:
result = '/{0}/{1}'.format(self.partition, self._values['parent'])
return result
@property
def type(self):
return 'udp'
class Changes(Parameters):
pass
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:
result = self.__default(param)
return result
@property
def parent(self):
if self.want.parent != self.have.parent:
raise F5ModuleError(
"The parent monitor cannot be changed"
)
@property
def destination(self):
if self.want.ip is None and self.want.port is None:
return None
if self.want.port is None:
self.want.update({'port': self.have.port})
if self.want.ip is None:
self.want.update({'ip': self.have.ip})
if self.want.port in [None, '*'] and self.want.ip != '*':
raise F5ModuleError(
"Specifying an IP address requires that a port number be specified"
)
if self.want.destination != self.have.destination:
return self.want.destination
@property
def interval(self):
if self.want.timeout is not None and self.want.interval is not None:
if self.want.interval >= self.want.timeout:
raise F5ModuleError(
"Parameter 'interval' must be less than 'timeout'."
)
elif self.want.timeout is not None:
if self.have.interval >= self.want.timeout:
raise F5ModuleError(
"Parameter 'interval' must be less than 'timeout'."
)
elif self.want.interval is not None:
if self.want.interval >= self.have.timeout:
raise F5ModuleError(
"Parameter 'interval' must be less than 'timeout'."
)
if self.want.interval != self.have.interval:
return self.want.interval
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, client):
self.client = client
self.have = None
self.want = Parameters(self.client.module.params)
self.changes = Changes()
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 = Changes(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 = Changes(changed)
return True
return False
def should_update(self):
result = self._update_changed_options()
if result:
return True
return False
def exec_module(self):
changed = False
result = dict()
state = self.want.state
try:
if state == "present":
changed = self.present()
elif state == "absent":
changed = self.absent()
except iControlUnexpectedHTTPError as e:
raise F5ModuleError(str(e))
changes = self.changes.to_return()
result.update(**changes)
result.update(dict(changed=changed))
self._announce_deprecations(result)
return result
def _announce_deprecations(self, result):
warnings = result.pop('__warnings', [])
for warning in warnings:
self.client.module.deprecate(
msg=warning['msg'],
version=warning['version']
)
def present(self):
if self.exists():
return self.update()
else:
return self.create()
def create(self):
self._set_changed_options()
if self.want.timeout is None:
self.want.update({'timeout': 16})
if self.want.interval is None:
self.want.update({'interval': 5})
if self.want.time_until_up is None:
self.want.update({'time_until_up': 0})
if self.want.ip is None:
self.want.update({'ip': '*'})
if self.want.port is None:
self.want.update({'port': '*'})
if self.want.send is None:
self.want.update({'send': 'default send string'})
if self.client.check_mode:
return True
self.create_on_device()
return True
def exists(self):
result = self.client.api.tm.ltm.monitor.udps.udp.exists(
name=self.want.name,
partition=self.want.partition
)
return result
def update(self):
self.have = self.read_current_from_device()
if not self.should_update():
return False
if self.client.check_mode:
return True
self.update_on_device()
return True
def remove(self):
if self.client.check_mode:
return True
self.remove_from_device()
if self.exists():
raise F5ModuleError("Failed to delete the resource.")
return True
def create_on_device(self):
params = self.want.api_params()
self.client.api.tm.ltm.monitor.udps.udp.create(
name=self.want.name,
partition=self.want.partition,
**params
)
def update_on_device(self):
params = self.want.api_params()
resource = self.client.api.tm.ltm.monitor.udps.udp.load(
name=self.want.name,
partition=self.want.partition
)
resource.modify(**params)
def absent(self):
if self.exists():
return self.remove()
return False
def remove_from_device(self):
resource = self.client.api.tm.ltm.monitor.udps.udp.load(
name=self.want.name,
partition=self.want.partition
)
if resource:
resource.delete()
def read_current_from_device(self):
resource = self.client.api.tm.ltm.monitor.udps.udp.load(
name=self.want.name,
partition=self.want.partition
)
result = resource.attrs
return Parameters(result)
class ArgumentSpec(object):
def __init__(self):
self.supports_check_mode = True
self.argument_spec = dict(
name=dict(required=True),
parent=dict(default='/Common/udp'),
send=dict(),
receive=dict(),
receive_disable=dict(required=False),
ip=dict(),
port=dict(type='int'),
interval=dict(type='int'),
timeout=dict(type='int'),
time_until_up=dict(type='int'),
# Deprecated params
parent_partition=dict(
removed_in_version='2.4'
)
)
self.f5_product_name = 'bigip'
def cleanup_tokens(client):
try:
resource = client.api.shared.authz.tokens_s.token.load(
name=client.api.icrs.token
)
resource.delete()
except Exception:
pass
def main():
spec = ArgumentSpec()
client = AnsibleF5Client(
argument_spec=spec.argument_spec,
supports_check_mode=spec.supports_check_mode,
f5_product_name=spec.f5_product_name
)
try:
if not HAS_F5SDK:
raise F5ModuleError("The python f5-sdk module is required")
if not HAS_NETADDR:
raise F5ModuleError("The python netaddr module is required")
mm = ModuleManager(client)
results = mm.exec_module()
cleanup_tokens(client)
client.module.exit_json(**results)
except F5ModuleError as e:
cleanup_tokens(client)
client.module.fail_json(msg=str(e))
if __name__ == '__main__':
main()
|