Adds bigip gtm monitor http module (#39944)

This module can be used to manage http monitors on a GTM
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Tim Rupp 2018-05-10 06:26:13 -07:00 committed by GitHub
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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_gtm_monitor_http
short_description: Manages F5 BIG-IP GTM http monitors
description:
- Manages F5 BIG-IP GTM http monitors.
version_added: 2.6
options:
name:
description:
- Monitor name.
required: True
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(tcp)
parent on the C(Common) partition.
default: /Common/http
send:
description:
- The send string for the monitor call.
- When creating a new monitor, if this parameter is not provided, the
default of C(GET /\r\n) will be used.
receive:
description:
- The receive string for the monitor call.
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
'*'.
- If this value is an IP address, then a C(port) number must be specified.
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 30.
- 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 120.
partition:
description:
- Device partition to manage resources on.
default: Common
state:
description:
- When C(present), ensures that the monitor exists.
- When C(absent), ensures the monitor is removed.
default: present
choices:
- present
- absent
probe_timeout:
description:
- Specifies the number of seconds after which the system times out the probe request
to the system.
- When creating a new monitor, if this parameter is not provided, then the default
value will be C(5).
ignore_down_response:
description:
- Specifies that the monitor allows more than one probe attempt per interval.
- When C(yes), specifies that the monitor ignores down responses for the duration of
the monitor timeout. Once the monitor timeout is reached without the system receiving
an up response, the system marks the object down.
- When C(no), specifies that the monitor immediately marks an object down when it
receives a down response.
- When creating a new monitor, if this parameter is not provided, then the default
value will be C(no).
type: bool
transparent:
description:
- Specifies whether the monitor operates in transparent mode.
- A monitor in transparent mode directs traffic through the associated pool members
or nodes (usually a router or firewall) to the aliased destination (that is, it
probes the C(ip)-C(port) combination specified in the monitor).
- If the monitor cannot successfully reach the aliased destination, the pool member
or node through which the monitor traffic was sent is marked down.
- When creating a new monitor, if this parameter is not provided, then the default
value will be C(no).
type: bool
reverse:
description:
- Instructs the system to mark the target resource down when the test is successful.
This setting is useful, for example, if the content on your web site home page is
dynamic and changes frequently, you may want to set up a reverse ECV service check
that looks for the string Error.
- A match for this string means that the web server was down.
- To use this option, you must specify values for C(send) and C(receive).
type: bool
target_username:
description:
- Specifies the user name, if the monitored target requires authentication.
target_password:
description:
- Specifies the password, if the monitored target requires authentication.
update_password:
description:
- C(always) will update passwords if the C(target_password) is specified.
- C(on_create) will only set the password for newly created monitors.
default: always
choices:
- always
- on_create
extends_documentation_fragment: f5
author:
- Tim Rupp (@caphrim007)
'''
EXAMPLES = r'''
- name: Create a GTM HTTP monitor
bigip_gtm_monitor_http:
name: my_monitor
ip: 1.1.1.1
port: 80
send: my send string
receive: my receive string
password: secret
server: lb.mydomain.com
state: present
user: admin
delegate_to: localhost
- name: Remove HTTP Monitor
bigip_gtm_monitor_http:
name: my_monitor
state: absent
server: lb.mydomain.com
user: admin
password: secret
delegate_to: localhost
- name: Add HTTP monitor for all addresses, port 514
bigip_gtm_monitor_http:
name: my_monitor
server: lb.mydomain.com
user: admin
port: 514
password: secret
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
port:
description: The new port the monitor checks the resource on.
returned: changed
type: string
sample: 8080
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
ignore_down_response:
description: Whether to ignore the down response or not.
returned: changed
type: bool
sample: True
send:
description: The new send string for this monitor.
returned: changed
type: string
sample: tcp string to send
receive:
description: The new receive string for this monitor.
returned: changed
type: string
sample: tcp string to receive
probe_timeout:
description: The new timeout in which the system will timeout the monitor probe.
returned: changed
type: int
sample: 10
reverse:
description: The new value for whether the monitor operates in reverse mode.
returned: changed
type: bool
sample: False
transparent:
description: The new value for whether the monitor operates in transparent mode.
returned: changed
type: bool
sample: False
'''
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils.basic import env_fallback
try:
from library.module_utils.network.f5.bigip import HAS_F5SDK
from library.module_utils.network.f5.bigip import F5Client
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 cleanup_tokens
from library.module_utils.network.f5.common import fq_name
from library.module_utils.network.f5.common import f5_argument_spec
try:
from library.module_utils.network.f5.common import iControlUnexpectedHTTPError
except ImportError:
HAS_F5SDK = False
except ImportError:
from ansible.module_utils.network.f5.bigip import HAS_F5SDK
from ansible.module_utils.network.f5.bigip import F5Client
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 cleanup_tokens
from ansible.module_utils.network.f5.common import fq_name
from ansible.module_utils.network.f5.common import f5_argument_spec
try:
from ansible.module_utils.network.f5.common import iControlUnexpectedHTTPError
except ImportError:
HAS_F5SDK = False
try:
import netaddr
HAS_NETADDR = True
except ImportError:
HAS_NETADDR = False
class Parameters(AnsibleF5Parameters):
api_map = {
'defaultsFrom': 'parent',
'ignoreDownResponse': 'ignore_down_response',
'probeTimeout': 'probe_timeout',
'recv': 'receive',
'username': 'target_username',
'password': 'target_password'
}
api_attributes = [
'defaultsFrom',
'interval',
'timeout',
'destination',
'transparent',
'probeTimeout',
'ignoreDownResponse',
'reverse',
'send',
'recv',
'username',
'password'
]
returnables = [
'parent',
'ip',
'port',
'interval',
'timeout',
'transparent',
'probe_timeout',
'ignore_down_response',
'send',
'receive',
'reverse'
]
updatables = [
'destination',
'interval',
'timeout',
'transparent',
'probe_timeout',
'ignore_down_response',
'send',
'receive',
'reverse',
'ip',
'port',
'target_username',
'target_password'
]
class ApiParameters(Parameters):
@property
def ip(self):
ip, port = self._values['destination'].split(':')
return ip
@property
def port(self):
ip, port = self._values['destination'].split(':')
try:
return int(port)
except ValueError:
return port
@property
def ignore_down_response(self):
if self._values['ignore_down_response'] is None:
return None
if self._values['ignore_down_response'] == 'disabled':
return False
return True
@property
def transparent(self):
if self._values['transparent'] is None:
return None
if self._values['transparent'] == 'disabled':
return False
return True
@property
def reverse(self):
if self._values['reverse'] is None:
return None
if self._values['reverse'] == 'disabled':
return False
return True
class ModuleParameters(Parameters):
@property
def interval(self):
if self._values['interval'] is None:
return None
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 parent(self):
if self._values['parent'] is None:
return None
result = fq_name(self.partition, self._values['parent'])
return result
@property
def port(self):
if self._values['port'] is None:
return None
elif self._values['port'] == '*':
return '*'
return int(self._values['port'])
@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 probe_timeout(self):
if self._values['probe_timeout'] is None:
return None
return int(self._values['probe_timeout'])
@property
def type(self):
return 'http'
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):
@property
def transparent(self):
if self._values['transparent'] is None:
return None
elif self._values['transparent'] is True:
return 'enabled'
return 'disabled'
@property
def ignore_down_response(self):
if self._values['ignore_down_response'] is None:
return None
elif self._values['ignore_down_response'] is True:
return 'enabled'
return 'disabled'
@property
def reverse(self):
if self._values['reverse'] is None:
return None
elif self._values['reverse'] is True:
return 'enabled'
return 'disabled'
class ReportableChanges(Changes):
@property
def ip(self):
ip, port = self._values['destination'].split(':')
return ip
@property
def port(self):
ip, port = self._values['destination'].split(':')
return int(port)
@property
def transparent(self):
if self._values['transparent'] == 'enabled':
return True
return False
@property
def ignore_down_response(self):
if self._values['ignore_down_response'] == 'enabled':
return True
return False
@property
def reverse(self):
if self._values['reverse'] == 'enabled':
return True
return False
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
@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
@property
def target_password(self):
if self.want.target_password != self.have.target_password:
if self.want.update_password == 'always':
result = self.want.target_password
return result
class ModuleManager(object):
def __init__(self, *args, **kwargs):
self.module = kwargs.get('module', None)
self.client = kwargs.get('client', 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 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))
reportable = ReportableChanges(params=self.changes.to_return())
changes = reportable.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 _set_default_creation_values(self):
if self.want.timeout is None:
self.want.update({'timeout': 120})
if self.want.interval is None:
self.want.update({'interval': 30})
if self.want.probe_timeout is None:
self.want.update({'probe_timeout': 5})
if self.want.ip is None:
self.want.update({'ip': '*'})
if self.want.port is None:
self.want.update({'port': '*'})
if self.want.ignore_down_response is None:
self.want.update({'ignore_down_response': False})
if self.want.transparent is None:
self.want.update({'transparent': False})
if self.want.send is None:
self.want.update({'send': 'GET /\r\n'})
def present(self):
if self.exists():
return self.update()
else:
return self.create()
def exists(self):
result = self.client.api.tm.gtm.monitor.https.http.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.module.check_mode:
return True
self.update_on_device()
return True
def remove(self):
if self.module.check_mode:
return True
self.remove_from_device()
if self.exists():
raise F5ModuleError("Failed to delete the resource.")
return True
def create(self):
self._set_default_creation_values()
self._set_changed_options()
if self.module.check_mode:
return True
self.create_on_device()
return True
def create_on_device(self):
params = self.changes.api_params()
self.client.api.tm.gtm.monitor.https.http.create(
name=self.want.name,
partition=self.want.partition,
**params
)
def update_on_device(self):
params = self.changes.api_params()
resource = self.client.api.tm.gtm.monitor.https.http.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.gtm.monitor.https.http.load(
name=self.want.name,
partition=self.want.partition
)
if resource:
resource.delete()
def read_current_from_device(self):
resource = self.client.api.tm.gtm.monitor.https.http.load(
name=self.want.name,
partition=self.want.partition
)
result = resource.attrs
return ApiParameters(params=result)
class ArgumentSpec(object):
def __init__(self):
self.supports_check_mode = True
argument_spec = dict(
name=dict(required=True),
parent=dict(default='/Common/http'),
send=dict(),
receive=dict(),
ip=dict(),
port=dict(type='int'),
interval=dict(type='int'),
timeout=dict(type='int'),
ignore_down_response=dict(type='bool'),
transparent=dict(type='bool'),
probe_timeout=dict(type='int'),
reverse=dict(type='bool'),
target_username=dict(),
target_password=dict(no_log=True),
update_password=dict(
default='always',
choices=['always', 'on_create']
),
state=dict(
default='present',
choices=['present', 'absent']
),
partition=dict(
default='Common',
fallback=(env_fallback, ['F5_PARTITION'])
)
)
self.argument_spec = {}
self.argument_spec.update(f5_argument_spec)
self.argument_spec.update(argument_spec)
def main():
spec = ArgumentSpec()
module = AnsibleModule(
argument_spec=spec.argument_spec,
supports_check_mode=spec.supports_check_mode
)
if not HAS_F5SDK:
module.fail_json(msg="The python f5-sdk module is required")
if not HAS_NETADDR:
module.fail_json(msg="The python netaddr module is required")
try:
client = F5Client(**module.params)
mm = ModuleManager(module=module, client=client)
results = mm.exec_module()
cleanup_tokens(client)
module.exit_json(**results)
except F5ModuleError as ex:
cleanup_tokens(client)
module.fail_json(msg=str(ex))
if __name__ == '__main__':
main()

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{
"kind": "tm:gtm:monitor:http:httpstate",
"name": "foo",
"partition": "Common",
"fullPath": "/Common/foo",
"generation": 0,
"selfLink": "https://localhost/mgmt/tm/gtm/monitor/http/~Common~foo?ver=13.1.0.4",
"defaultsFrom": "/Common/http",
"description": "my description",
"destination": "3.3.3.3:8080",
"ignoreDownResponse": "disabled",
"interval": 30,
"password": "secret",
"probeTimeout": 5,
"recv": "the receive string",
"reverse": "enabled",
"send": "GET /",
"timeout": 120,
"transparent": "enabled",
"username": "user1"
}

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# -*- 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
import os
import json
import pytest
import sys
from nose.plugins.skip import SkipTest
if sys.version_info < (2, 7):
raise SkipTest("F5 Ansible modules require Python >= 2.7")
from ansible.compat.tests import unittest
from ansible.compat.tests.mock import Mock
from ansible.compat.tests.mock import patch
from ansible.module_utils.basic import AnsibleModule
try:
from library.modules.bigip_gtm_monitor_http import ApiParameters
from library.modules.bigip_gtm_monitor_http import ModuleParameters
from library.modules.bigip_gtm_monitor_http import ModuleManager
from library.modules.bigip_gtm_monitor_http import ArgumentSpec
from library.module_utils.network.f5.common import F5ModuleError
from library.module_utils.network.f5.common import iControlUnexpectedHTTPError
from test.unit.modules.utils import set_module_args
except ImportError:
try:
from ansible.modules.network.f5.bigip_gtm_monitor_http import ApiParameters
from ansible.modules.network.f5.bigip_gtm_monitor_http import ModuleParameters
from ansible.modules.network.f5.bigip_gtm_monitor_http import ModuleManager
from ansible.modules.network.f5.bigip_gtm_monitor_http import ArgumentSpec
from ansible.module_utils.network.f5.common import F5ModuleError
from ansible.module_utils.network.f5.common import iControlUnexpectedHTTPError
from units.modules.utils import set_module_args
except ImportError:
raise SkipTest("F5 Ansible modules require the f5-sdk Python library")
fixture_path = os.path.join(os.path.dirname(__file__), 'fixtures')
fixture_data = {}
def load_fixture(name):
path = os.path.join(fixture_path, name)
if path in fixture_data:
return fixture_data[path]
with open(path) as f:
data = f.read()
try:
data = json.loads(data)
except Exception:
pass
fixture_data[path] = data
return data
class TestParameters(unittest.TestCase):
def test_module_parameters(self):
args = dict(
name='foo',
parent='/Common/my-http',
send='the send string',
receive='the receive string',
ip='1.1.1.1',
port='80',
interval='10',
timeout='20',
ignore_down_response=True,
transparent=False,
probe_timeout='30',
reverse=True
)
p = ModuleParameters(params=args)
assert p.name == 'foo'
assert p.parent == '/Common/my-http'
assert p.send == 'the send string'
assert p.receive == 'the receive string'
assert p.destination == '1.1.1.1:80'
assert p.ip == '1.1.1.1'
assert p.port == 80
assert p.interval == 10
assert p.timeout == 20
assert p.ignore_down_response is True
assert p.transparent is False
assert p.probe_timeout == 30
assert p.reverse is True
def test_api_parameters(self):
args = load_fixture('load_gtm_monitor_http_1.json')
p = ApiParameters(params=args)
assert p.name == 'foo'
assert p.parent == '/Common/http'
assert p.send == 'GET /'
assert p.receive == 'the receive string'
assert p.destination == '3.3.3.3:8080'
assert p.ip == '3.3.3.3'
assert p.port == 8080
assert p.interval == 30
assert p.timeout == 120
assert p.ignore_down_response is False
assert p.transparent is True
assert p.probe_timeout == 5
assert p.reverse is True
@patch('ansible.module_utils.f5_utils.AnsibleF5Client._get_mgmt_root',
return_value=True)
class TestManager(unittest.TestCase):
def setUp(self):
self.spec = ArgumentSpec()
def test_create_monitor(self, *args):
set_module_args(dict(
name='foo',
ip='10.10.10.10',
port=80,
interval=20,
timeout=30,
server='localhost',
password='password',
user='admin'
))
module = AnsibleModule(
argument_spec=self.spec.argument_spec,
supports_check_mode=self.spec.supports_check_mode
)
# Override methods in the specific type of manager
mm = ModuleManager(module=module)
mm.exists = Mock(side_effect=[False, True])
mm.create_on_device = Mock(return_value=True)
results = mm.exec_module()
assert results['changed'] is True