From b66c62aab0545df61d4e942f40a880e24d9f63c0 Mon Sep 17 00:00:00 2001
From: Joseph Callen <jcpowermac@gmail.com>
Date: Mon, 24 Aug 2015 13:14:37 -0400
Subject: [PATCH] New VMware Module to support configuring DNS on ESXi hosts

---
 cloud/vmware/vmware_dns_config.py | 143 ++++++++++++++++++++++++++++++
 1 file changed, 143 insertions(+)
 create mode 100644 cloud/vmware/vmware_dns_config.py

diff --git a/cloud/vmware/vmware_dns_config.py b/cloud/vmware/vmware_dns_config.py
new file mode 100644
index 00000000000..b233ed610c8
--- /dev/null
+++ b/cloud/vmware/vmware_dns_config.py
@@ -0,0 +1,143 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+# (c) 2015, Joseph Callen <jcallen () csc.com>
+#
+# This file is part of Ansible
+#
+# Ansible is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Ansible is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Ansible.  If not, see <http://www.gnu.org/licenses/>.
+
+DOCUMENTATION = '''
+---
+module: vmware_dns_config
+short_description: Manage VMware ESXi DNS Configuration
+description:
+    - Manage VMware ESXi DNS Configuration
+version_added: 2.0
+author: "Joseph Callen (@jcpowermac)"
+notes:
+    - Tested on vSphere 5.5
+requirements:
+    - "python >= 2.6"
+    - PyVmomi
+options:
+    hostname:
+        description:
+            - The hostname or IP address of the vSphere vCenter API server
+        required: True
+    username:
+        description:
+            - The username of the vSphere vCenter
+        required: True
+        aliases: ['user', 'admin']
+    password:
+        description:
+            - The password of the vSphere vCenter
+        required: True
+        aliases: ['pass', 'pwd']
+    change_hostname_to:
+        description:
+            - The hostname that an ESXi host should be changed to.
+        required: True
+    domainname:
+        description:
+            - The domain the ESXi host should be apart of.
+        required: True
+    dns_servers:
+        description:
+            - The DNS servers that the host should be configured to use.
+        required: True
+'''
+
+EXAMPLES = '''
+# Example vmware_dns_config command from Ansible Playbooks
+- name: Configure ESXi hostname and DNS servers
+  local_action:
+    module: vmware_dns_config
+    hostname: esxi_hostname
+    username: root
+    password: your_password
+    change_hostname_to: esx01
+    domainname: foo.org
+    dns_servers:
+        - 8.8.8.8
+        - 8.8.4.4
+'''
+try:
+    from pyVmomi import vim, vmodl
+    HAS_PYVMOMI = True
+except ImportError:
+    HAS_PYVMOMI = False
+
+
+def configure_dns(host_system, hostname, domainname, dns_servers):
+
+    changed = False
+    host_config_manager = host_system.configManager
+    host_network_system = host_config_manager.networkSystem
+    config = host_network_system.dnsConfig
+
+    config.dhcp = False
+
+    if config.address != dns_servers:
+        config.address = dns_servers
+        changed = True
+    if config.domainName != domainname:
+        config.domainName = domainname
+        changed = True
+    if config.hostName != hostname:
+        config.hostName = hostname
+        changed = True
+    if changed:
+        host_network_system.UpdateDnsConfig(config)
+
+    return changed
+
+
+def main():
+
+    argument_spec = vmware_argument_spec()
+    argument_spec.update(dict(change_hostname_to=dict(required=True, type='str'),
+                         domainname=dict(required=True, type='str'),
+                         dns_servers=dict(required=True, type='list')))
+
+    module = AnsibleModule(argument_spec=argument_spec, supports_check_mode=False)
+
+    if not HAS_PYVMOMI:
+        module.fail_json(msg='pyvmomi is required for this module')
+
+    change_hostname_to = module.params['change_hostname_to']
+    domainname = module.params['domainname']
+    dns_servers = module.params['dns_servers']
+    try:
+        content = connect_to_api(module)
+        host = get_all_objs(content, [vim.HostSystem])
+        if not host:
+            module.fail_json(msg="Unable to locate Physical Host.")
+        host_system = host.keys()[0]
+        changed = configure_dns(host_system, change_hostname_to, domainname, dns_servers)
+        module.exit_json(changed=changed)
+    except vmodl.RuntimeFault as runtime_fault:
+        module.fail_json(msg=runtime_fault.msg)
+    except vmodl.MethodFault as method_fault:
+        module.fail_json(msg=method_fault.msg)
+    except Exception as e:
+        module.fail_json(msg=str(e))
+
+
+from ansible.module_utils.vmware import *
+from ansible.module_utils.basic import *
+
+if __name__ == '__main__':
+    main()