Adds the bigip_gtm_pool_member module (#39937)

This module can be used to manage individual pool members on a bigip's
GTM installation

lib/ansible/modules/network/f5/bigip_gtm_pool_member.py

@@ -0,0 +1,682 @@
+#!/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_pool_member
+short_description: Manage GTM pool member settings
+description:
+  - Manages a variety of settings on GTM pool members. The settings that can be
+    adjusted with this module are much more broad that what can be done in the
+    C(bigip_gtm_pool) module. The pool module is intended to allow you to adjust
+    the member order in the pool, not the various settings of the members. The
+    C(bigip_gtm_pool_member) module should be used to adjust all of the other
+    settings.
+version_added: 2.6
+options:
+  virtual_server:
+    description:
+      - Specifies the name of the GTM virtual server which is assigned to the specified
+        C(server).
+    required: True
+  server_name:
+    description:
+      - Specifies the GTM server which contains the C(virtual_server).
+    required: True
+  type:
+    description:
+      - The type of GTM pool that the member is in.
+    choices:
+      - a
+      - aaaa
+      - cname
+      - mx
+      - naptr
+      - srv
+    required: True
+  pool:
+    description:
+      - Name of the GTM pool.
+    required: True
+  partition:
+    description:
+      - Device partition to manage resources on.
+    default: Common
+  member_order:
+    description:
+      - Specifies the order in which the member will appear in the pool.
+      - The system uses this number with load balancing methods that involve prioritizing
+        pool members, such as the Ratio load balancing method.
+      - When creating a new member using this module, if the C(member_order) parameter
+        is not specified, it will default to C(0) (first member in the pool).
+  monitor:
+    description:
+      - Specifies the monitor assigned to this pool member.
+      - Pool members only support a single monitor.
+      - If the C(port) of the C(gtm_virtual_server) is C(*), the accepted values of this
+        parameter will be affected.
+      - When creating a new pool member, if this parameter is not specified, the default
+        of C(default) will be used.
+      - To remove the monitor from the pool member, use the value C(none).
+      - For pool members created on different partitions, you can also specify the full
+        path to the Common monitor. For example, C(/Common/tcp).
+  ratio:
+    description:
+      - Specifies the weight of the pool member for load balancing purposes.
+  description:
+    description:
+      - The description of the pool member.
+  limits:
+    description:
+      - Specifies resource thresholds or limit requirements at the pool member level.
+      - When you enable one or more limit settings, the system then uses that data to take
+        members in and out of service.
+      - You can define limits for any or all of the limit settings. However, when a
+        member does not meet the resource threshold limit requirement, the system marks
+        the member as unavailable and directs load-balancing traffic to another resource.
+    suboptions:
+      bits_enabled:
+        description:
+          - Whether the bits limit it enabled or not.
+          - This parameter allows you to switch on or off the effect of the limit.
+        type: bool
+      packets_enabled:
+        description:
+          - Whether the packets limit it enabled or not.
+          - This parameter allows you to switch on or off the effect of the limit.
+        type: bool
+      connections_enabled:
+        description:
+          - Whether the current connections limit it enabled or not.
+          - This parameter allows you to switch on or off the effect of the limit.
+        type: bool
+      bits_limit:
+        description:
+          - Specifies the maximum allowable data throughput rate, in bits per second,
+            for the member.
+          - If the network traffic volume exceeds this limit, the system marks the
+            member as unavailable.
+      packets_limit:
+        description:
+          - Specifies the maximum allowable data transfer rate, in packets per second,
+            for the member.
+          - If the network traffic volume exceeds this limit, the system marks the
+            member as unavailable.
+      connections_limit:
+        description:
+          - Specifies the maximum number of concurrent connections, combined, for all of
+            the member.
+          - If the connections exceed this limit, the system marks the server as
+            unavailable.
+  state:
+    description:
+      - Pool member state. When C(present), ensures that the pool member is
+        created and enabled. When C(absent), ensures that the pool member is
+        removed from the system. When C(enabled) or C(disabled), ensures
+        that the pool member is enabled or disabled (respectively) on the remote
+        device.
+      - It is recommended that you use the C(members) parameter of the C(bigip_gtm_pool)
+        module when adding and removing members and it provides an easier way of
+        specifying order. If this is not possible, then the C(state) parameter here
+        should be used.
+      - Remember that the order of the members will be affected if you add or remove them
+        using this method. To some extent, this can be controlled using the C(member_order)
+        parameter.
+    default: present
+    choices:
+      - present
+      - absent
+      - enabled
+      - disabled
+extends_documentation_fragment: f5
+author:
+  - Tim Rupp (@caphrim007)
+'''
+
+EXAMPLES = r'''
+- name: Create a ...
+  bigip_gtm_pool_member:
+    name: foo
+    password: secret
+    server: lb.mydomain.com
+    state: present
+    user: admin
+  delegate_to: localhost
+'''
+
+RETURN = r'''
+param1:
+  description: The new param1 value of the resource.
+  returned: changed
+  type: bool
+  sample: true
+param2:
+  description: The new param2 value of the resource.
+  returned: changed
+  type: string
+  sample: Foo is bar
+'''
+
+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
+
+
+class Parameters(AnsibleF5Parameters):
+    api_map = {
+        'limitMaxBps': 'bits_limit',
+        'limitMaxBpsStatus': 'bits_enabled',
+        'limitMaxConnections': 'connections_limit',
+        'limitMaxConnectionsStatus': 'connections_enabled',
+        'limitMaxPps': 'packets_limit',
+        'limitMaxPpsStatus': 'packets_enabled',
+        'memberOrder': 'member_order'
+    }
+
+    api_attributes = [
+        'disabled',
+        'enabled',
+        'limitMaxBps',
+        'limitMaxBpsStatus',
+        'limitMaxConnections',
+        'limitMaxConnectionsStatus',
+        'limitMaxPps',
+        'limitMaxPpsStatus',
+        'memberOrder',
+        'monitor',
+        'ratio',
+        'description',
+    ]
+
+    returnables = [
+        'bits_enabled',
+        'bits_limit',
+        'connections_enabled',
+        'connections_limit',
+        'disabled',
+        'enabled',
+        'member_order',
+        'monitor',
+        'packets_enabled',
+        'packets_limit',
+        'ratio',
+        'description',
+    ]
+
+    updatables = [
+        'bits_enabled',
+        'bits_limit',
+        'connections_enabled',
+        'connections_limit',
+        'enabled',
+        'member_order',
+        'monitor',
+        'packets_limit',
+        'packets_enabled',
+        'ratio',
+        'description',
+    ]
+
+    @property
+    def ratio(self):
+        if self._values['ratio'] is None:
+            return None
+        return int(self._values['ratio'])
+
+
+class ApiParameters(Parameters):
+    @property
+    def enabled(self):
+        if 'enabled' in self._values:
+            return True
+        else:
+            return False
+
+    @property
+    def disabled(self):
+        if 'disabled' in self._values:
+            return True
+        return False
+
+    @property
+    def monitor(self):
+        if self._values['monitor'] is None:
+            return None
+        # The value of this parameter in the API includes an extra space
+        return self._values['monitor'].strip()
+
+
+class ModuleParameters(Parameters):
+    def _get_limit_value(self, type):
+        if self._values['limits'] is None:
+            return None
+        if self._values['limits'][type] is None:
+            return None
+        return int(self._values['limits'][type])
+
+    def _get_limit_status(self, type):
+        if self._values['limits'] is None:
+            return None
+        if self._values['limits'][type] is None:
+            return None
+        if self._values['limits'][type]:
+            return 'enabled'
+        return 'disabled'
+
+    @property
+    def name(self):
+        result = '{0}:{1}'.format(self.server_name, self.virtual_server)
+        return result
+
+    @property
+    def type(self):
+        if self._values['type'] is None:
+            return None
+        return str(self._values['type'])
+
+    @property
+    def collection(self):
+        type_map = dict(
+            a='a_s',
+            aaaa='aaaas',
+            cname='cnames',
+            mx='mxs',
+            naptr='naptrs',
+            srv='srvs'
+        )
+        if self._values['type'] is None:
+            return None
+        wideip_type = self._values['type']
+        return type_map[wideip_type]
+
+    @property
+    def enabled(self):
+        if self._values['state'] == 'enabled':
+            return True
+        elif self._values['state'] == 'disabled':
+            return False
+        else:
+            return None
+
+    @property
+    def disabled(self):
+        if self._values['state'] == 'enabled':
+            return False
+        elif self._values['state'] == 'disabled':
+            return True
+        else:
+            return None
+
+    @property
+    def bits_limit(self):
+        return self._get_limit_value('bits_limit')
+
+    @property
+    def packets_limit(self):
+        return self._get_limit_value('packets_limit')
+
+    @property
+    def connections_limit(self):
+        return self._get_limit_value('connections_limit')
+
+    @property
+    def bits_enabled(self):
+        return self._get_limit_status('bits_enabled')
+
+    @property
+    def packets_enabled(self):
+        return self._get_limit_status('packets_enabled')
+
+    @property
+    def connections_enabled(self):
+        return self._get_limit_status('connections_enabled')
+
+    @property
+    def monitor(self):
+        if self._values['monitor'] is None:
+            return None
+        elif self._values['monitor'] in ['default', '']:
+            return 'default'
+        return fq_name(self.partition, self._values['monitor'])
+
+
+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):
+    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:
+            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 enabled(self):
+        if self.want.state == 'enabled' and self.have.disabled:
+            result = dict(
+                enabled=True,
+                disabled=False
+            )
+            return result
+        elif self.want.state == 'disabled' and self.have.enabled:
+            result = dict(
+                enabled=False,
+                disabled=True
+            )
+            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 in ['present', 'enabled', 'disabled']:
+                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 present(self):
+        if self.exists():
+            return self.update()
+        else:
+            return self.create()
+
+    def exists(self):
+        pools = self.client.api.tm.gtm.pools
+        collection = getattr(pools, self.want.collection)
+        resource = getattr(collection, self.want.type)
+        resource = resource.load(
+            name=self.want.pool,
+            partition=self.want.partition
+        )
+        result = resource.members_s.member.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):
+        if self.want.state == 'disabled':
+            self.want.update({'disabled': True})
+        elif self.want.state in ['present', 'enabled']:
+            self.want.update({'enabled': True})
+        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()
+        pools = self.client.api.tm.gtm.pools
+        collection = getattr(pools, self.want.collection)
+        resource = getattr(collection, self.want.type)
+        resource = resource.load(
+            name=self.want.pool,
+            partition=self.want.partition
+        )
+        resource.members_s.member.create(
+            name=self.want.name,
+            partition=self.want.partition,
+            **params
+        )
+
+    def update_on_device(self):
+        params = self.changes.api_params()
+        pools = self.client.api.tm.gtm.pools
+        collection = getattr(pools, self.want.collection)
+        resource = getattr(collection, self.want.type)
+        resource = resource.load(
+            name=self.want.pool,
+            partition=self.want.partition
+        )
+        resource = resource.members_s.member.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):
+        pools = self.client.api.tm.gtm.pools
+        collection = getattr(pools, self.want.collection)
+        resource = getattr(collection, self.want.type)
+        resource = resource.load(
+            name=self.want.pool,
+            partition=self.want.partition
+        )
+        resource = resource.members_s.member.load(
+            name=self.want.name,
+            partition=self.want.partition
+        )
+        if resource:
+            resource.delete()
+
+    def read_current_from_device(self):
+        pools = self.client.api.tm.gtm.pools
+        collection = getattr(pools, self.want.collection)
+        resource = getattr(collection, self.want.type)
+        resource = resource.load(
+            name=self.want.pool,
+            partition=self.want.partition
+        )
+        resource = resource.members_s.member.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
+        self.types = [
+            'a', 'aaaa', 'cname', 'mx', 'naptr', 'srv'
+        ]
+        argument_spec = dict(
+            pool=dict(required=True),
+            server_name=dict(required=True),
+            virtual_server=dict(required=True),
+            type=dict(
+                choices=self.types,
+                required=True
+            ),
+            member_order=dict(type='int'),
+            monitor=dict(),
+            ratio=dict(type='int'),
+            description=dict(),
+            limits=dict(
+                type='dict',
+                options=dict(
+                    bits_enabled=dict(type='bool'),
+                    packets_enabled=dict(type='bool'),
+                    connections_enabled=dict(type='bool'),
+                    bits_limit=dict(type='int'),
+                    packets_limit=dict(type='int'),
+                    connections_limit=dict(type='int')
+                )
+            ),
+            state=dict(
+                default='present',
+                choices=['present', 'absent', 'disabled', 'enabled']
+            ),
+            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")
+
+    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()

test/units/modules/network/f5/fixtures/load_gtm_pool_a_member_1.json

@@ -0,0 +1,18 @@
+{
+    "kind": "tm:gtm:pool:a:members:membersstate",
+    "name": "foo_gtm_server:bar",
+    "partition": "Common",
+    "fullPath": "/Common/foo_gtm_server:bar",
+    "generation": 398,
+    "selfLink": "https://localhost/mgmt/tm/gtm/pool/a/~Common~foo-pool/members/~Common~foo_gtm_server:bar?ver=13.0.0",
+    "enabled": true,
+    "limitMaxBps": 0,
+    "limitMaxBpsStatus": "disabled",
+    "limitMaxConnections": 0,
+    "limitMaxConnectionsStatus": "disabled",
+    "limitMaxPps": 0,
+    "limitMaxPpsStatus": "disabled",
+    "memberOrder": 1,
+    "monitor": "default",
+    "ratio": 1
+}

test/units/modules/network/f5/test_bigip_gtm_pool_member.py

@@ -0,0 +1,159 @@
+# -*- 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_pool_member import ApiParameters
+    from library.modules.bigip_gtm_pool_member import ModuleParameters
+    from library.modules.bigip_gtm_pool_member import ModuleManager
+    from library.modules.bigip_gtm_pool_member 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_pool_member import ApiParameters
+        from ansible.modules.network.f5.bigip_gtm_pool_member import ModuleParameters
+        from ansible.modules.network.f5.bigip_gtm_pool_member import ModuleManager
+        from ansible.modules.network.f5.bigip_gtm_pool_member 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(
+            pool='pool1',
+            server_name='server1',
+            virtual_server='vs1',
+            type='a',
+            state='enabled',
+            limits=dict(
+                bits_enabled=True,
+                packets_enabled=True,
+                connections_enabled=True,
+                bits_limit=100,
+                packets_limit=200,
+                connections_limit=300
+            ),
+            description='foo description',
+            ratio=10,
+            monitor='tcp',
+            member_order=2
+        )
+
+        p = ModuleParameters(params=args)
+        assert p.pool == 'pool1'
+        assert p.server_name == 'server1'
+        assert p.virtual_server == 'vs1'
+        assert p.type == 'a'
+        assert p.state == 'enabled'
+        assert p.bits_enabled == 'enabled'
+        assert p.packets_enabled == 'enabled'
+        assert p.connections_enabled == 'enabled'
+        assert p.bits_limit == 100
+        assert p.packets_limit == 200
+        assert p.connections_limit == 300
+
+    def test_api_parameters(self):
+        args = load_fixture('load_gtm_pool_a_member_1.json')
+
+        p = ApiParameters(params=args)
+        assert p.ratio == 1
+        assert p.monitor == 'default'
+        assert p.member_order == 1
+        assert p.packets_enabled == 'disabled'
+        assert p.packets_limit == 0
+        assert p.bits_enabled == 'disabled'
+        assert p.bits_limit == 0
+        assert p.connections_enabled == 'disabled'
+        assert p.connections_limit == 0
+
+
+@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(
+            pool='pool1',
+            server_name='server1',
+            virtual_server='vs1',
+            type='a',
+            state='enabled',
+            limits=dict(
+                bits_enabled='yes',
+                packets_enabled='yes',
+                connections_enabled='yes',
+                bits_limit=100,
+                packets_limit=200,
+                connections_limit=300
+            ),
+            description='foo description',
+            ratio=10,
+            monitor='tcp',
+            member_order=2,
+            partition='Common',
+            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