diff --git a/lib/ansible/modules/cloud/vmware/vmware_host_active_directory.py b/lib/ansible/modules/cloud/vmware/vmware_host_active_directory.py
new file mode 100644
index 00000000000..66d033e457a
--- /dev/null
+++ b/lib/ansible/modules/cloud/vmware/vmware_host_active_directory.py
@@ -0,0 +1,369 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+# Copyright: (c) 2018, Christian Kotte <christian.kotte@gmx.de>
+#
+# 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: vmware_host_active_directory
+short_description: Joins an ESXi host system to an Active Directory domain or leaves it
+description:
+- This module can be used to join or leave an ESXi host to or from an Active Directory domain.
+version_added: 2.8
+author:
+- Christian Kotte (@ckotte)
+notes:
+- Tested on vSphere 6.5
+requirements:
+- python >= 2.6
+- PyVmomi
+options:
+  ad_domain:
+    description:
+        - AD Domain to join.
+    type: str
+    aliases: [ domain, domain_name ]
+  ad_user:
+    description:
+        - Username for AD domain join.
+    type: str
+  ad_password:
+    description:
+        - Password for AD domain join.
+    type: str
+  ad_state:
+     description:
+        - Wheter the ESXi host is joined to an AD domain or not.
+     type: str
+     choices: [ present, absent ]
+     default: 'absent'
+     aliases: [ state ]
+  esxi_hostname:
+    description:
+    - Name of the host system to work with.
+    - This parameter is required if C(cluster_name) is not specified.
+    type: str
+  cluster_name:
+    description:
+    - Name of the cluster from which all host systems will be used.
+    - This parameter is required if C(esxi_hostname) is not specified.
+    type: str
+extends_documentation_fragment: vmware.documentation
+'''
+
+EXAMPLES = r'''
+- name: Join an AD domain
+  vmware_host_active_directory:
+    hostname: '{{ vcenter_hostname }}'
+    username: '{{ vcenter_username }}'
+    password: '{{ vcenter_password }}'
+    esxi_hostname: '{{ esxi_hostname }}'
+    ad_domain: example.local
+    ad_user: adjoin
+    ad_password: Password123$
+    ad_state: present
+    validate_certs: no
+  delegate_to: localhost
+
+- name: Leave AD domain
+  vmware_host_active_directory:
+    hostname: '{{ vcenter_hostname }}'
+    username: '{{ vcenter_username }}'
+    password: '{{ vcenter_password }}'
+    esxi_hostname: '{{ esxi_hostname }}'
+    ad_state: absent
+    validate_certs: no
+  delegate_to: localhost
+'''
+
+RETURN = r'''
+results:
+    description: metadata about host system's AD domain join state
+    returned: always
+    type: dict
+    sample: {
+        "esxi01": {
+            "changed": true,
+            "domain": "example.local",
+            "membership_state": "ok",
+            "msg": "Host joined to AD domain",
+            "ad_state": "present",
+            "ad_state_current": "present",
+            "ad_state_previous": "absent",
+        },
+    }
+'''
+
+try:
+    from pyVmomi import vim
+except ImportError:
+    pass
+
+from ansible.module_utils.basic import AnsibleModule
+from ansible.module_utils.vmware import PyVmomi, TaskError, vmware_argument_spec, wait_for_task
+from ansible.module_utils._text import to_native
+
+
+class VmwareHostAdAuthentication(PyVmomi):
+    """Manage Active Directory Authentication for an ESXi host system"""
+
+    def __init__(self, module):
+        super(VmwareHostAdAuthentication, self).__init__(module)
+        cluster_name = self.params.get('cluster_name')
+        esxi_host_name = self.params.get('esxi_hostname')
+        self.hosts = self.get_all_host_objs(cluster_name=cluster_name, esxi_host_name=esxi_host_name)
+        if not self.hosts:
+            self.module.fail_json(msg="Failed to find host system.")
+
+    def ensure(self):
+        """Manage Active Directory Authentication for an ESXi host system"""
+        results = dict(changed=False, result=dict())
+        desired_state = self.params.get('ad_state')
+        domain = self.params.get('ad_domain')
+        ad_user = self.params.get('ad_user')
+        ad_password = self.params.get('ad_password')
+        host_change_list = []
+        for host in self.hosts:
+            changed = False
+            results['result'][host.name] = dict(msg='')
+
+            active_directory_info = self.get_ad_info(host)
+
+            results['result'][host.name]['ad_state'] = desired_state
+            results['result'][host.name]['ad_domain'] = domain
+            if desired_state == 'present':
+                # Don't do anything if already enabled and joined
+                if active_directory_info.enabled:
+                    # Joined and no problems with the domain membership
+                    if active_directory_info.domainMembershipStatus == 'ok':
+                        results['result'][host.name]['changed'] = False
+                        results['result'][host.name]['membership_state'] = active_directory_info.domainMembershipStatus
+                        results['result'][host.name]['joined_domain'] = active_directory_info.joinedDomain
+                        results['result'][host.name]['trusted_domains'] = active_directory_info.trustedDomain
+                        results['result'][host.name]['msg'] = (
+                            "Host is joined to AD domain and there are no problems with the domain membership"
+                        )
+                    # Joined, but problems with the domain membership
+                    else:
+                        changed = results['result'][host.name]['changed'] = True
+                        results['result'][host.name]['membership_state'] = active_directory_info.domainMembershipStatus
+                        results['result'][host.name]['joined_domain'] = active_directory_info.joinedDomain
+                        results['result'][host.name]['trusted_domains'] = active_directory_info.trustedDomain
+                        msg = "Host is joined to AD domain, but "
+                        if active_directory_info.domainMembershipStatus == 'clientTrustBroken':
+                            msg += "the client side of the trust relationship is broken"
+                        elif active_directory_info.domainMembershipStatus == 'inconsistentTrust':
+                            msg += "unexpected domain controller responded"
+                        elif active_directory_info.domainMembershipStatus == 'noServers':
+                            msg += "the host thinks it's part of a domain and " \
+                                "no domain controllers could be reached to confirm"
+                        elif active_directory_info.domainMembershipStatus == 'serverTrustBroken':
+                            msg += "the server side of the trust relationship is broken (or bad machine password)"
+                        elif active_directory_info.domainMembershipStatus == 'otherProblem':
+                            msg += "there are some problems with the domain membership"
+                        elif active_directory_info.domainMembershipStatus == 'unknown':
+                            msg += "the Active Directory integration provider does not support domain trust checks"
+                        results['result'][host.name]['msg'] = msg
+                # Enable and join AD domain
+                else:
+                    if self.module.check_mode:
+                        changed = results['result'][host.name]['changed'] = True
+                        results['result'][host.name]['ad_state_previous'] = "absent"
+                        results['result'][host.name]['ad_state_current'] = "present"
+                        results['result'][host.name]['msg'] = "Host would be joined to AD domain"
+                    else:
+                        ad_authentication = self.get_ad_auth_object(host)
+                        try:
+                            try:
+                                task = ad_authentication.JoinDomain(
+                                    domainName=domain, userName=ad_user, password=ad_password
+                                )
+                                wait_for_task(task)
+                            except TaskError as task_err:
+                                self.module.fail_json(
+                                    msg="Failed to join domain : %s" % to_native(task_err)
+                                )
+                            changed = results['result'][host.name]['changed'] = True
+                            results['result'][host.name]['ad_state_previous'] = "absent"
+                            results['result'][host.name]['ad_state_current'] = "present"
+                            results['result'][host.name]['msg'] = "Host joined to AD domain"
+                            active_directory_info = self.get_ad_info(host)
+                            results['result'][host.name]['membership_state'] = active_directory_info.domainMembershipStatus
+                        except vim.fault.InvalidState as invalid_state:
+                            self.module.fail_json(
+                                msg="The host has already joined a domain : %s" % to_native(invalid_state.msg)
+                            )
+                        except vim.fault.HostConfigFault as host_fault:
+                            self.module.fail_json(
+                                msg="The host configuration prevents the join operation from succeeding : %s" %
+                                to_native(host_fault.msg)
+                            )
+                        except vim.fault.InvalidLogin as invalid_login:
+                            self.module.fail_json(
+                                msg="Credentials aren't valid : %s" % to_native(invalid_login.msg)
+                            )
+                        except vim.fault.TaskInProgress as task_in_progress:
+                            self.module.fail_json(
+                                msg="The ActiveDirectoryAuthentication object is busy : %s" %
+                                to_native(task_in_progress.msg)
+                            )
+                        except vim.fault.BlockedByFirewall as blocked_by_firewall:
+                            self.module.fail_json(
+                                msg="Ports needed by the join operation are blocked by the firewall : %s" %
+                                to_native(blocked_by_firewall.msg)
+                            )
+                        except vim.fault.DomainNotFound as not_found:
+                            self.module.fail_json(
+                                msg="The domain controller can't be reached : %s" % to_native(not_found.msg)
+                            )
+                        except vim.fault.NoPermissionOnAD as no_permission:
+                            self.module.fail_json(
+                                msg="The specified user has no right to add hosts to the domain : %s" %
+                                to_native(no_permission.msg)
+                            )
+                        except vim.fault.InvalidHostName as invalid_host:
+                            self.module.fail_json(
+                                msg="The domain part of the host's FQDN doesn't match the domain being joined : %s" %
+                                to_native(invalid_host.msg)
+                            )
+                        except vim.fault.ClockSkew as clock_skew:
+                            self.module.fail_json(
+                                msg="The clocks of the host and the domain controller differ by more "
+                                "than the allowed amount of time : %s" % to_native(clock_skew.msg)
+                            )
+                        except vim.fault.ActiveDirectoryFault as ad_fault:
+                            self.module.fail_json(
+                                msg="An error occurred during AD join : %s" %
+                                to_native(ad_fault.msg)
+                            )
+            elif desired_state == 'absent':
+                # Don't do anything not joined to any AD domain
+                if not active_directory_info.enabled:
+                    results['result'][host.name]['changed'] = False
+                    results['result'][host.name]['ad_state_current'] = "absent"
+                    results['result'][host.name]['msg'] = "Host isn't joined to an AD domain"
+                # Disable and leave AD domain
+                else:
+                    if self.module.check_mode:
+                        changed = results['result'][host.name]['changed'] = True
+                        results['result'][host.name]['ad_state_previous'] = "present"
+                        results['result'][host.name]['ad_state_current'] = "absent"
+                        results['result'][host.name]['msg'] = "Host would leave the AD domain '%s'" % \
+                            active_directory_info.joinedDomain
+                    else:
+                        ad_authentication = self.get_ad_auth_object(host)
+                        try:
+                            try:
+                                task = ad_authentication.LeaveCurrentDomain(force=True)
+                                wait_for_task(task)
+                            except TaskError as task_err:
+                                self.module.fail_json(
+                                    msg="Failed to join domain : %s" % to_native(task_err)
+                                )
+                            changed = results['result'][host.name]['changed'] = True
+                            results['result'][host.name]['ad_state_previous'] = "present"
+                            results['result'][host.name]['ad_state_current'] = "absent"
+                            results['result'][host.name]['msg'] = "Host left the AD domain '%s'" % \
+                                active_directory_info.joinedDomain
+                        except vim.fault.InvalidState as invalid_state:
+                            self.module.fail_json(
+                                msg="The host is not in a domain or there are active permissions for "
+                                "Active Directory users : %s" % to_native(invalid_state.msg)
+                            )
+                        except vim.fault.AuthMinimumAdminPermission as admin_permission:
+                            self.module.fail_json(
+                                msg="This change would leave the system with no Administrator permission "
+                                "on the root node : %s" % to_native(admin_permission.msg)
+                            )
+                        except vim.fault.TaskInProgress as task_in_progress:
+                            self.module.fail_json(
+                                msg="The ActiveDirectoryAuthentication object is busy : %s" %
+                                to_native(task_in_progress.msg)
+                            )
+                        except vim.fault.NonADUserRequired as non_ad_user:
+                            self.module.fail_json(
+                                msg="Only non Active Directory users can initiate the leave domain operation : %s" %
+                                to_native(non_ad_user.msg)
+                            )
+                        except vim.fault.ActiveDirectoryFault as ad_fault:
+                            self.module.fail_json(
+                                msg="An error occurred during AD leave : %s" %
+                                to_native(ad_fault.msg)
+                            )
+
+            host_change_list.append(changed)
+
+        if any(host_change_list):
+            results['changed'] = True
+        self.module.exit_json(**results)
+
+    def get_ad_info(self, host_object):
+        """Get info about AD membership"""
+        active_directory_info = None
+        authentication_store_info = host_object.config.authenticationManagerInfo.authConfig
+        for authentication_info in authentication_store_info:
+            if isinstance(authentication_info, vim.host.ActiveDirectoryInfo):
+                active_directory_info = authentication_info
+                break
+        if not active_directory_info:
+            self.module.fail_json(
+                msg="Failed to get Active Directory info from authentication manager"
+            )
+        return active_directory_info
+
+    def get_ad_auth_object(self, host_object):
+        """Get AD authentication managed object"""
+        ad_authentication = None
+        authentication_store_info = host_object.configManager.authenticationManager.supportedStore
+        for store_info in authentication_store_info:
+            if isinstance(store_info, vim.host.ActiveDirectoryAuthentication):
+                ad_authentication = store_info
+                break
+        if not ad_authentication:
+            self.module.fail_json(
+                msg="Failed to get Active Directory authentication managed object from authentication manager"
+            )
+        return ad_authentication
+
+
+def main():
+    """Main"""
+    argument_spec = vmware_argument_spec()
+    argument_spec.update(
+        ad_domain=dict(type='str', default='', aliases=['domain', 'domain_name']),
+        ad_user=dict(type='str', default=''),
+        ad_password=dict(type='str', default='', no_log=True),
+        ad_state=dict(default='absent', choices=['present', 'absent'], aliases=['state']),
+        esxi_hostname=dict(type='str', required=False),
+        cluster_name=dict(type='str', required=False),
+    )
+
+    module = AnsibleModule(
+        argument_spec=argument_spec,
+        required_one_of=[
+            ['cluster_name', 'esxi_hostname'],
+        ],
+        required_if=[
+            ['ad_state', 'present', ['ad_domain', 'ad_user', 'ad_password']],
+        ],
+        supports_check_mode=True
+    )
+
+    ad_auth = VmwareHostAdAuthentication(module)
+    ad_auth.ensure()
+
+
+if __name__ == '__main__':
+    main()
diff --git a/test/integration/targets/vmware_host_active_directory/aliases b/test/integration/targets/vmware_host_active_directory/aliases
new file mode 100644
index 00000000000..845e8a6dad5
--- /dev/null
+++ b/test/integration/targets/vmware_host_active_directory/aliases
@@ -0,0 +1,2 @@
+cloud/vcenter
+unsupported
diff --git a/test/integration/targets/vmware_host_active_directory/tasks/main.yml b/test/integration/targets/vmware_host_active_directory/tasks/main.yml
new file mode 100644
index 00000000000..4aea37d67f3
--- /dev/null
+++ b/test/integration/targets/vmware_host_active_directory/tasks/main.yml
@@ -0,0 +1,132 @@
+# Test code for the vmware_host_active_directory module.
+# Copyright: (c) 2018, Christian Kotte <christian.kotte@gmx.de>
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+- name: store the vcenter container ip
+  set_fact:
+    vcsim: "{{ lookup('env', 'vcenter_host') }}"
+
+- debug: var=vcsim
+
+- name: Wait for Flask controller to come up online
+  wait_for:
+    host: "{{ vcsim }}"
+    port: 5000
+    state: started
+
+- name: kill vcsim
+  uri:
+    url: http://{{ vcsim }}:5000/killall
+
+- name: start vcsim
+  uri:
+    url: http://{{ vcsim }}:5000/spawn?cluster=2
+  register: vcsim_instance
+
+- debug:
+    var: vcsim_instance
+
+- name: Wait for vcsim server to come up online
+  wait_for:
+    host: "{{ vcsim }}"
+    port: 443
+    state: started
+
+- name: get a list of clusters from vcsim
+  uri:
+    url: http://{{ vcsim }}:5000/govc_find?filter=CCR
+  register: clusters
+
+- name: get a cluster
+  set_fact:
+    ccr1: "{{ clusters.json[0] | basename }}"
+
+- name: get a list of hosts from vcsim
+  uri:
+    url: http://{{ vcsim }}:5000/govc_find?filter=H
+  register: hosts
+
+- name: get a host
+  set_fact:
+    host1: "{{ hosts.json[0] | basename }}"
+
+- debug: var=ccr1
+- debug: var=host1
+
+# Active Directory domain isn't available
+
+- name: Join an AD domain in check mode
+  vmware_host_active_directory:
+    hostname: "{{ vcsim }}"
+    username: "{{ vcsim_instance.json.username }}"
+    password: "{{ vcsim_instance.json.password }}"
+    esxi_hostname: "{{ host1 }}"
+    ad_domain: example.local
+    ad_user: adjoin
+    ad_password: Password123$
+    ad_state: present
+    validate_certs: no
+  register: host_active_directory_facts_check_mode
+  check_mode: yes
+
+- debug: var=host_active_directory_facts_check_mode
+
+- assert:
+    that:
+      - host_active_directory_facts_check_mode is defined
+      - host_active_directory_facts_check_mode.changed
+
+- name: Join an AD domain
+  vmware_host_active_directory:
+    hostname: "{{ vcsim }}"
+    username: "{{ vcsim_instance.json.username }}"
+    password: "{{ vcsim_instance.json.password }}"
+    esxi_hostname: "{{ host1 }}"
+    ad_domain: example.local
+    ad_user: adjoin
+    ad_password: Password123$
+    ad_state: present
+    validate_certs: no
+  register: host_active_directory_facts
+
+- debug: var=host_active_directory_facts
+
+- assert:
+    that:
+      - host_active_directory_facts is defined
+      - host_active_directory_facts.changed
+
+- name: Leave AD domain in check mode
+  vmware_host_active_directory:
+    hostname: "{{ vcsim }}"
+    username: "{{ vcsim_instance.json.username }}"
+    password: "{{ vcsim_instance.json.password }}"
+    esxi_hostname: "{{ host1 }}"
+    ad_state: absent
+    validate_certs: no
+  register: host_active_directory_facts_2_check_mode
+  check_mode: yes
+
+- debug: var=host_active_directory_facts_2_check_mode
+
+- assert:
+    that:
+      - host_active_directory_facts_2_check_mode is defined
+      - host_active_directory_facts_2_check_mode.changed
+
+- name: Leave AD domain
+  vmware_host_active_directory:
+    hostname: "{{ vcsim }}"
+    username: "{{ vcsim_instance.json.username }}"
+    password: "{{ vcsim_instance.json.password }}"
+    esxi_hostname: "{{ host1 }}"
+    ad_state: absent
+    validate_certs: no
+  register: host_active_directory_facts_2
+
+- debug: var=host_active_directory_facts_2
+
+- assert:
+    that:
+      - host_active_directory_facts_2 is defined
+      - host_active_directory_facts_2.changed