Adds bigip_monitor_snmp_dca module (#33483)

This module is a flavor of monitor for SNMP DCA's
2024-09-14 20:13:21 +02:00 · 2017-12-01 23:34:25 -08:00 · 2017-12-01 23:34:25 -08:00 · 914829f56b
commit 914829f56b
parent a2f19fbded
2 changed files with 841 additions and 0 deletions
--- a/lib/ansible/modules/network/f5/bigip_monitor_snmp_dca.py
+++ b/lib/ansible/modules/network/f5/bigip_monitor_snmp_dca.py
@ -0,0 +1,666 @@
+#!/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_snmp_dca
+short_description: Manages BIG-IP SNMP data collecting agent (DCA) monitors
+description:
+  - The BIG-IP has an SNMP data collecting agent (DCA) that can query remote
+    SNMP agents of various types, including the UC Davis agent (UCD) and the
+    Windows 2000 Server agent (WIN2000).
+version_added: "2.5"
+options:
+  name:
+    description:
+      - Monitor name.
+    required: True
+    aliases:
+      - monitor
+  description:
+    description:
+      - Specifies descriptive text that identifies the 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(snmp_dca)
+        parent on the C(Common) partition.
+    default: "/Common/snmp_dca"
+  interval:
+    description:
+      - Specifies, in seconds, the frequency at which the system issues the
+        monitor check when either the resource is down or the status of the
+        resource is unknown. When creating a new monitor, the default is C(10).
+  timeout:
+    description:
+      - Specifies the number of seconds the target has in which to respond to
+        the monitor request. When creating a new monitor, the default is C(30)
+        seconds. 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'. When this value is set to 0 (zero),
+        the system uses the interval from the parent monitor. Note that
+        C(timeout) and C(time_until_up) combine to control when a resource is
+        set to up.
+  time_until_up:
+    description:
+      - Specifies the number of seconds to wait after a resource first responds
+        correctly to the monitor before setting the resource to 'up'. During the
+        interval, all responses from the resource must be correct. When the
+        interval expires, the resource is marked 'up'. A value of 0, means
+        that the resource is marked up immediately upon receipt of the first
+        correct response. When creating a new monitor, the default is C(0).
+  community:
+    description:
+      - Specifies the community name that the system must use to authenticate
+        with the host server through SNMP. When creating a new monitor, the
+        default value is C(public). Note that this value is case sensitive.
+  version:
+    description:
+      - Specifies the version of SNMP that the host server uses. When creating
+        a new monitor, the default is C(v1). When C(v1), specifies that the
+        host server uses SNMP version 1. When C(v2c), specifies that the host
+        server uses SNMP version 2c.
+    choices:
+      - v1
+      - v2c
+  agent_type:
+    description:
+      - Specifies the SNMP agent running on the monitored server. When creating
+        a new monitor, the default is C(UCD) (UC-Davis).
+    choices:
+      - UCD
+      - WIN2000
+      - GENERIC
+  cpu_coefficient:
+    description:
+      - Specifies the coefficient that the system uses to calculate the weight
+        of the CPU threshold in the dynamic ratio load balancing algorithm.
+        When creating a new monitor, the default is C(1.5).
+  cpu_threshold:
+    description:
+      - Specifies the maximum acceptable CPU usage on the target server. When
+        creating a new monitor, the default is C(80) percent.
+  memory_coefficient:
+    description:
+      - Specifies the coefficient that the system uses to calculate the weight
+        of the memory threshold in the dynamic ratio load balancing algorithm.
+        When creating a new monitor, the default is C(1.0).
+  memory_threshold:
+    description:
+      - Specifies the maximum acceptable memory usage on the target server.
+        When creating a new monitor, the default is C(70) percent.
+  disk_coefficient:
+    description:
+      - Specifies the coefficient that the system uses to calculate the weight
+        of the disk threshold in the dynamic ratio load balancing algorithm.
+        When creating a new monitor, the default is C(2.0).
+  disk_threshold:
+    description:
+      - Specifies the maximum acceptable disk usage on the target server. When
+        creating a new monitor, the default is C(90) percent.
+  partition:
+    description:
+      - Device partition to manage resources on.
+    default: Common
+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
+  - This module does not support the C(variables) option because this option
+    is broken in the REST API and does not function correctly in C(tmsh); for
+    example you cannot remove user-defined params. Therefore, there is no way
+    to automatically configure it.
+requirements:
+  - f5-sdk >= 2.2.3
+extends_documentation_fragment: f5
+author:
+  - Tim Rupp (@caphrim007)
+'''
+
+EXAMPLES = r'''
+- name: Create SNMP DCS monitor
+  bigip_monitor_snmp_dca:
+    state: present
+    server: lb.mydomain.com
+    user: admin
+    password: secret
+    name: my_monitor
+  delegate_to: localhost
+
+- name: Remove TCP Echo Monitor
+  bigip_monitor_snmp_dca:
+    state: absent
+    server: lb.mydomain.com
+    user: admin
+    password: secret
+    name: my_monitor
+  delegate_to: localhost
+'''
+
+RETURN = r'''
+parent:
+  description: New parent template of the monitor.
+  returned: changed
+  type: string
+  sample: snmp_dca
+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
+community:
+  description: The new community for the monitor.
+  returned: changed
+  type: string
+  sample: foobar
+version:
+  description: The new new SNMP version to be used by the monitor.
+  returned: changed
+  type: string
+  sample: v2c
+agent_type:
+  description: The new agent type to be used by the monitor.
+  returned: changed
+  type: string
+  sample: UCD
+cpu_coefficient:
+  description: The new CPU coefficient.
+  returned: changed
+  type: float
+  sample: 2.4
+cpu_threshold:
+  description: The new CPU threshold.
+  returned: changed
+  type: int
+  sample: 85
+memory_coefficient:
+  description: The new memory coefficient.
+  returned: changed
+  type: float
+  sample: 6.4
+memory_threshold:
+  description: The new memory threshold.
+  returned: changed
+  type: int
+  sample: 50
+disk_coefficient:
+  description: The new disk coefficient.
+  returned: changed
+  type: float
+  sample: 10.2
+disk_threshold:
+  description: The new disk threshold.
+  returned: changed
+  type: int
+  sample: 34
+'''
+
+import os
+
+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',
+        'agentType': 'agent_type',
+        'cpuCoefficient': 'cpu_coefficient',
+        'cpuThreshold': 'cpu_threshold',
+        'memoryCoefficient': 'memory_coefficient',
+        'memoryThreshold': 'memory_threshold',
+        'diskCoefficient': 'disk_coefficient',
+        'diskThreshold': 'disk_threshold'
+    }
+
+    api_attributes = [
+        'timeUntilUp', 'defaultsFrom', 'interval', 'timeout', 'destination', 'community',
+        'version', 'agentType', 'cpuCoefficient', 'cpuThreshold', 'memoryCoefficient',
+        'memoryThreshold', 'diskCoefficient', 'diskThreshold'
+    ]
+
+    returnables = [
+        'parent', 'ip', 'interval', 'timeout', 'time_until_up', 'description', 'community',
+        'version', 'agent_type', 'cpu_coefficient', 'cpu_threshold', 'memory_coefficient',
+        'memory_threshold', 'disk_coefficient', 'disk_threshold'
+    ]
+
+    updatables = [
+        'ip', 'interval', 'timeout', 'time_until_up', 'description', 'community',
+        'version', 'agent_type', 'cpu_coefficient', 'cpu_threshold', 'memory_coefficient',
+        'memory_threshold', 'disk_coefficient', 'disk_threshold'
+    ]
+
+    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 to_return(self):
+        result = {}
+        try:
+            for returnable in self.returnables:
+                result[returnable] = getattr(self, returnable)
+            result = self._filter_params(result)
+            return result
+        except Exception:
+            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 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 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 cpu_coefficient(self):
+        result = self._get_numeric_property('cpu_coefficient')
+        return result
+
+    @property
+    def cpu_threshold(self):
+        result = self._get_numeric_property('cpu_threshold')
+        return result
+
+    @property
+    def memory_coefficient(self):
+        result = self._get_numeric_property('memory_coefficient')
+        return result
+
+    @property
+    def memory_threshold(self):
+        result = self._get_numeric_property('memory_threshold')
+        return result
+
+    @property
+    def disk_coefficient(self):
+        result = self._get_numeric_property('disk_coefficient')
+        return result
+
+    @property
+    def disk_threshold(self):
+        result = self._get_numeric_property('disk_threshold')
+        return result
+
+    def _get_numeric_property(self, property):
+        if self._values[property] is None:
+            return None
+        try:
+            fvar = float(self._values[property])
+        except ValueError:
+            raise F5ModuleError(
+                "Provided {0} must be a valid number".format(property)
+            )
+        return fvar
+
+    @property
+    def type(self):
+        return 'snmp_dca'
+
+
+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.want.parent:
+            raise F5ModuleError(
+                "The parent monitor cannot be changed"
+            )
+
+    @property
+    def destination(self):
+        if self.want.ip is None:
+            return None
+        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 = Parameters()
+
+    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 = Parameters(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:
+                changed[k] = change
+        if changed:
+            self.changes = Parameters(changed)
+            return True
+        return False
+
+    def _announce_deprecations(self):
+        warnings = []
+        if self.want:
+            warnings += self.want._values.get('__warnings', [])
+        if self.have:
+            warnings += self.have._values.get('__warnings', [])
+        for warning in warnings:
+            self.client.module.deprecate(
+                msg=warning['msg'],
+                version=warning['version']
+            )
+
+    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()
+        return result
+
+    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': 30})
+        if self.want.interval is None:
+            self.want.update({'interval': 10})
+        if self.want.time_until_up is None:
+            self.want.update({'time_until_up': 0})
+        if self.want.community is None:
+            self.want.update({'community': 'public'})
+        if self.want.version is None:
+            self.want.update({'version': 'v1'})
+        if self.want.agent_type is None:
+            self.want.update({'agent_type': 'UCD'})
+        if self.want.cpu_coefficient is None:
+            self.want.update({'cpu_coefficient': '1.5'})
+        if self.want.cpu_threshold is None:
+            self.want.update({'cpu_threshold': '80'})
+        if self.want.memory_coefficient is None:
+            self.want.update({'memory_coefficient': '1.0'})
+        if self.want.memory_threshold is None:
+            self.want.update({'memory_threshold': '70'})
+        if self.want.disk_coefficient is None:
+            self.want.update({'disk_coefficient': '2.0'})
+        if self.want.disk_threshold is None:
+            self.want.update({'disk_threshold': '90'})
+
+        if self.client.check_mode:
+            return True
+        self.create_on_device()
+        return True
+
+    def should_update(self):
+        result = self._update_changed_options()
+        if result:
+            return True
+        return False
+
+    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 absent(self):
+        if self.exists():
+            return self.remove()
+        return False
+
+    def remove(self):
+        if self.client.check_mode:
+            return True
+        self.remove_from_device()
+        if self.exists():
+            raise F5ModuleError("Failed to delete the monitor.")
+        return True
+
+    def read_current_from_device(self):
+        resource = self.client.api.tm.ltm.monitor.snmp_dcas.snmp_dca.load(
+            name=self.want.name,
+            partition=self.want.partition
+        )
+        result = resource.attrs
+        return Parameters(result)
+
+    def exists(self):
+        result = self.client.api.tm.ltm.monitor.snmp_dcas.snmp_dca.exists(
+            name=self.want.name,
+            partition=self.want.partition
+        )
+        return result
+
+    def update_on_device(self):
+        params = self.want.api_params()
+        result = self.client.api.tm.ltm.monitor.snmp_dcas.snmp_dca.load(
+            name=self.want.name,
+            partition=self.want.partition
+        )
+        result.modify(**params)
+
+    def create_on_device(self):
+        params = self.want.api_params()
+        self.client.api.tm.ltm.monitor.snmp_dcas.snmp_dca.create(
+            name=self.want.name,
+            partition=self.want.partition,
+            **params
+        )
+
+    def remove_from_device(self):
+        result = self.client.api.tm.ltm.monitor.snmp_dcas.snmp_dca.load(
+            name=self.want.name,
+            partition=self.want.partition
+        )
+        if result:
+            result.delete()
+
+
+class ArgumentSpec(object):
+    def __init__(self):
+        self.supports_check_mode = True
+        self.argument_spec = dict(
+            name=dict(required=True),
+            description=dict(),
+            parent=dict(),
+            ip=dict(),
+            interval=dict(type='int'),
+            timeout=dict(type='int'),
+            time_until_up=dict(type='int'),
+            community=dict(),
+            version=dict(),
+            agent_type=dict(
+                choices=['UCD', 'WIN2000', 'GENERIC']
+            ),
+            cpu_coefficient=dict(),
+            cpu_threshold=dict(type='int'),
+            memory_coefficient=dict(),
+            memory_threshold=dict(type='int'),
+            disk_coefficient=dict(),
+            disk_threshold=dict(type='int')
+        )
+        self.f5_product_name = 'bigip'
+
+
+def main():
+    try:
+        spec = ArgumentSpec()
+
+        client = AnsibleF5Client(
+            argument_spec=spec.argument_spec,
+            supports_check_mode=spec.supports_check_mode,
+            f5_product_name=spec.f5_product_name
+        )
+
+        if not HAS_F5SDK:
+            raise F5ModuleError("The python f5-sdk module is required")
+
+        mm = ModuleManager(client)
+        results = mm.exec_module()
+        client.module.exit_json(**results)
+    except F5ModuleError as e:
+        client.module.fail_json(msg=str(e))
+
+
+if __name__ == '__main__':
+    main()
--- a/test/units/modules/network/f5/test_bigip_monitor_snmp_dca.py
+++ b/test/units/modules/network/f5/test_bigip_monitor_snmp_dca.py
@ -0,0 +1,175 @@
+# -*- 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.f5_utils import AnsibleF5Client
+from ansible.module_utils.f5_utils import F5ModuleError
+
+try:
+    from library.bigip_monitor_snmp_dca import Parameters
+    from library.bigip_monitor_snmp_dca import ModuleManager
+    from library.bigip_monitor_snmp_dca import ArgumentSpec
+    from ansible.module_utils.f5_utils import iControlUnexpectedHTTPError
+    from test.unit.modules.utils import set_module_args
+except ImportError:
+    try:
+        from ansible.modules.network.f5.bigip_monitor_snmp_dca import Parameters
+        from ansible.modules.network.f5.bigip_monitor_snmp_dca import ModuleManager
+        from ansible.modules.network.f5.bigip_monitor_snmp_dca import ArgumentSpec
+        from ansible.module_utils.f5_utils 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(
+            agent_type='UCD',
+            community='public',
+            cpu_coefficient='1.5',
+            cpu_threshold='80',
+            parent='/Common/snmp_dca',
+            disk_coefficient='2.0',
+            disk_threshold='90',
+            interval=10,
+            memory_coefficient='1.0',
+            memory_threshold='70',
+            time_until_up=0,
+            timeout=30,
+            version='v1'
+        )
+
+        p = Parameters(args)
+        assert p.agent_type == 'UCD'
+        assert p.community == 'public'
+        assert p.cpu_coefficient == 1.5
+        assert p.cpu_threshold == 80
+        assert p.parent == '/Common/snmp_dca'
+        assert p.disk_coefficient == 2.0
+        assert p.disk_threshold == 90
+        assert p.interval == 10
+        assert p.memory_coefficient == 1.0
+        assert p.memory_threshold == 70
+        assert p.time_until_up == 0
+        assert p.timeout == 30
+        assert p.version == 'v1'
+
+    def test_api_parameters(self):
+        args = dict(
+            agentType='UCD',
+            community='public',
+            cpuCoefficient='1.5',
+            cpuThreshold='80',
+            defaultsFrom='/Common/snmp_dca',
+            diskCoefficient='2.0',
+            diskThreshold='90',
+            interval=10,
+            memoryCoefficient='1.0',
+            memoryThreshold='70',
+            timeUntilUp=0,
+            timeout=30,
+            apiRawValues={
+                "userDefined asdasd": "{ foo }",
+                "userDefined bar": "tim rupp",
+                "user-defined baz-": "nia",
+                "userDefined userDefined": "23234"
+            },
+            version='v1'
+        )
+
+        p = Parameters(args)
+        assert p.agent_type == 'UCD'
+        assert p.community == 'public'
+        assert p.cpu_coefficient == 1.5
+        assert p.cpu_threshold == 80
+        assert p.parent == '/Common/snmp_dca'
+        assert p.disk_coefficient == 2.0
+        assert p.disk_threshold == 90
+        assert p.interval == 10
+        assert p.memory_coefficient == 1.0
+        assert p.memory_threshold == 70
+        assert p.time_until_up == 0
+        assert p.timeout == 30
+        assert p.version == 'v1'
+
+
+@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(self, *args):
+        set_module_args(dict(
+            name='foo',
+            agent_type='UCD',
+            community='public',
+            cpu_coefficient='1.5',
+            cpu_threshold='80',
+            parent='/Common/snmp_dca',
+            disk_coefficient='2.0',
+            disk_threshold='90',
+            memory_coefficient='1.0',
+            memory_threshold='70',
+            version='v1',
+            interval=20,
+            timeout=30,
+            time_until_up=60,
+            server='localhost',
+            password='password',
+            user='admin'
+        ))
+
+        client = AnsibleF5Client(
+            argument_spec=self.spec.argument_spec,
+            supports_check_mode=self.spec.supports_check_mode,
+            f5_product_name=self.spec.f5_product_name
+        )
+
+        # Override methods in the specific type of manager
+        mm = ModuleManager(client)
+        mm.exists = Mock(side_effect=[False, True])
+        mm.create_on_device = Mock(return_value=True)
+
+        results = mm.exec_module()
+
+        assert results['changed'] is True