Merge pull request #344 from cove/zabbix_hostmacro

add zabbix_hostmacro module
same comments as for zabbix_host

monitoring/zabbix_hostmacro.py

@@ -0,0 +1,233 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+# (c) 2013-2014, Epic Games, Inc.
+#
+# 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: zabbix_hostmacro
+short_description: Zabbix host macro creates/updates/deletes
+description:
+   - When the host macro does not exists, a new macro will be created, added to specific host.
+   - When the host macro already exists, the value will be updated.
+   - Delete a host macro from Zabbix if the macro exists.
+version_added: "1.9"
+author: Dean Hailin Song
+requirements:
+    - zabbix-api python module
+options:
+    server_url:
+        description:
+            - Url of Zabbix server, with protocol (http or https).
+              C(url) is an alias for C(server_url).
+        required: true
+        default: null
+        aliases: [ "url" ]
+    login_user:
+        description:
+            - Zabbix user name.
+        required: true
+        default: null
+    login_password:
+        description:
+            - Zabbix user password.
+        required: true
+        default: null
+    host_name:
+        description:
+            - Technical name of the host.
+            - If the host has already been added, the host name won't be updated.
+        required: true
+    macro_name:
+        description:
+            - Technical name of the host macro.
+        required: true
+    macro_value:
+        description:
+            - Value of the host macro.
+        required: true
+    state:
+        description:
+            - create/update or delete macro.
+            - Possible values are: present and absent. If the macro already exists, and the state is "present", just to update the macro.
+        required: false
+        default: "present"
+    timeout:
+        description:
+            - The timeout of API request(seconds).
+        default: 10
+'''
+
+EXAMPLES = '''
+- name: Create a new host macro or update an existing macro's value
+  local_action:
+    module: zabbix_hostmacro
+    server_url: http://monitor.example.com
+    login_user: username
+    login_password: password
+    host_name: ExampleHost
+    macro_name:Example macro
+    macro_value:Example value
+    state: present
+'''
+
+import logging
+import copy
+from ansible.module_utils.basic import *
+
+try:
+    from zabbix_api import ZabbixAPI, ZabbixAPISubClass
+
+    HAS_ZABBIX_API = True
+except ImportError:
+    HAS_ZABBIX_API = False
+
+
+# Extend the ZabbixAPI
+# Since the zabbix-api python module too old (version 1.0, no higher version so far).
+class ZabbixAPIExtends(ZabbixAPI):
+    def __init__(self, server, timeout, **kwargs):
+        ZabbixAPI.__init__(self, server, timeout=timeout)
+
+
+class HostMacro(object):
+    def __init__(self, module, zbx):
+        self._module = module
+        self._zapi = zbx
+
+    # exist host
+    def is_host_exist(self, host_name):
+        result = self._zapi.host.exists({'host': host_name})
+        return result
+
+    # get host id by host name
+    def get_host_id(self, host_name):
+        try:
+            host_list = self._zapi.host.get({'output': 'extend', 'filter': {'host': host_name}})
+            if len(host_list) < 1:
+                self._module.fail_json(msg="Host not found: %s" % host_name)
+            else:
+                host_id = host_list[0]['hostid']
+                return host_id
+        except Exception, e:
+            self._module.fail_json(msg="Failed to get the host %s id: %s." % (host_name, e))
+
+    # get host macro
+    def get_host_macro(self, macro_name, host_id):
+        try:
+            host_macro_list = self._zapi.usermacro.get(
+                {"output": "extend", "selectSteps": "extend", 'hostids': [host_id], 'filter': {'macro': '{$' + macro_name + '}'}})
+            if len(host_macro_list) > 0:
+                return host_macro_list[0]
+            return None
+        except Exception, e:
+            self._module.fail_json(msg="Failed to get host macro %s: %s" % (macro_name, e))
+
+    # create host macro
+    def create_host_macro(self, macro_name, macro_value, host_id):
+        try:
+            if self._module.check_mode:
+                self._module.exit_json(changed=True)
+            self._zapi.usermacro.create({'hostid': host_id, 'macro': '{$' + macro_name + '}', 'value': macro_value})
+            self._module.exit_json(changed=True, result="Successfully added host macro %s " % macro_name)
+        except Exception, e:
+            self._module.fail_json(msg="Failed to create host macro %s: %s" % (macro_name, e))
+
+    # update host macro
+    def update_host_macro(self, host_macro_obj, macro_name, macro_value):
+        host_macro_id = host_macro_obj['hostmacroid']
+        try:
+            if self._module.check_mode:
+                self._module.exit_json(changed=True)
+            self._zapi.usermacro.update({'hostmacroid': host_macro_id, 'value': macro_value})
+            self._module.exit_json(changed=True, result="Successfully updated host macro %s " % macro_name)
+        except Exception, e:
+            self._module.fail_json(msg="Failed to updated host macro %s: %s" % (macro_name, e))
+
+    # delete host macro
+    def delete_host_macro(self, host_macro_obj, macro_name):
+        host_macro_id = host_macro_obj['hostmacroid']
+        try:
+            if self._module.check_mode:
+                self._module.exit_json(changed=True)
+            self._zapi.usermacro.delete([host_macro_id])
+            self._module.exit_json(changed=True, result="Successfully deleted host macro %s " % macro_name)
+        except Exception, e:
+            self._module.fail_json(msg="Failed to delete host macro %s: %s" % (macro_name, e))
+
+def main():
+    module = AnsibleModule(
+        argument_spec=dict(
+            server_url=dict(required=True, default=None, aliases=['url']),
+            login_user=dict(required=True),
+            login_password=dict(required=True),
+            host_name=dict(required=True),
+            macro_name=dict(required=True),
+            macro_value=dict(required=True),
+            state=dict(default="present"),
+            timeout=dict(default=10)
+        ),
+        supports_check_mode=True
+    )
+
+    if not HAS_ZABBIX_API:
+        module.fail_json(msg="Missing requried zabbix-api module (check docs or install with: pip install zabbix-api)")
+
+    server_url = module.params['server_url']
+    login_user = module.params['login_user']
+    login_password = module.params['login_password']
+    host_name = module.params['host_name']
+    macro_name  = (module.params['macro_name']).upper()
+    macro_value = module.params['macro_value']
+    state = module.params['state']
+    timeout = module.params['timeout']
+
+    zbx = None
+    # login to zabbix
+    try:
+        zbx = ZabbixAPIExtends(server_url, timeout=timeout)
+        zbx.login(login_user, login_password)
+    except Exception, e:
+        module.fail_json(msg="Failed to connect to Zabbix server: %s" % e)
+
+    host_macro_class_obj = HostMacro(module, zbx)
+
+    changed = False
+
+    if host_name:
+        host_id = host_macro_class_obj.get_host_id(host_name)
+        host_macro_obj = host_macro_class_obj.get_host_macro(macro_name, host_id)
+
+    if state == 'absent':
+        if not host_macro_obj:
+            module.exit_json(changed=False, msg="Host Macro %s does not exist" % macro_name)
+        else:
+            # delete a macro
+            host_macro_class_obj.delete_host_macro(host_macro_obj, macro_name)
+    else:
+        if not host_macro_obj:
+            # create host macro
+            host_macro_class_obj.create_host_macro(macro_name, macro_value, host_id)
+        else:
+            # update host macro
+            host_macro_class_obj.update_host_macro(host_macro_obj, macro_name, macro_value)
+
+from ansible.module_utils.basic import *
+main()
+