Add datadog_monitor param for datadog tags (#2541)

* Add datadog_monitor param for datadog tags

* Rename tags, add version_added

lib/ansible/modules/extras/monitoring/datadog_monitor.py

@@ -34,7 +34,7 @@ description:
 - "Manages monitors within Datadog"
 - "Options like described on http://docs.datadoghq.com/api/"
 version_added: "2.0"
-author: "Sebastian Kornehl (@skornehl)" 
+author: "Sebastian Kornehl (@skornehl)"
 notes: []
 requirements: [datadog]
 options:
@@ -48,6 +48,11 @@ options:
         description: ["The designated state of the monitor."]
         required: true
         choices: ['present', 'absent', 'muted', 'unmuted']
+    tags:
+        description: ["A list of tags to associate with your monitor when creating or updating. This can help you categorize and filter monitors."]
+        required: false
+        default: None
+        version_added: 2.2
     type:
         description:
             - "The type of the monitor."
@@ -153,6 +158,7 @@ def main():
             escalation_message=dict(required=False, default=None),
             notify_audit=dict(required=False, default=False, type='bool'),
             thresholds=dict(required=False, type='dict', default=None),
+            tags=dict(required=False, type='list', default=None)
         )
     )
 
@@ -189,9 +195,12 @@ def _get_monitor(module):
 
 def _post_monitor(module, options):
     try:
-        msg = api.Monitor.create(type=module.params['type'], query=module.params['query'],
-                                 name=module.params['name'], message=_fix_template_vars(module.params['message']),
-                                 options=options)
+        kwargs = dict(type=module.params['type'], query=module.params['query'],
+                      name=module.params['name'], message=_fix_template_vars(module.params['message']),
+                      options=options)
+        if module.params['tags'] is not None:
+            kwargs['tags'] = module.params['tags']
+        msg = api.Monitor.create(**kwargs)
         if 'errors' in msg:
             module.fail_json(msg=str(msg['errors']))
         else:
@@ -206,9 +215,13 @@ def _equal_dicts(a, b, ignore_keys):
 
 def _update_monitor(module, monitor, options):
     try:
-        msg = api.Monitor.update(id=monitor['id'], query=module.params['query'],
-                                 name=module.params['name'], message=_fix_template_vars(module.params['message']),
-                                 options=options)
+        kwargs = dict(id=monitor['id'], query=module.params['query'],
+                      name=module.params['name'], message=_fix_template_vars(module.params['message']),
+                      options=options)
+        if module.params['tags'] is not None:
+            kwargs['tags'] = module.params['tags']
+        msg = api.Monitor.update(**kwargs)
+
         if 'errors' in msg:
             module.fail_json(msg=str(msg['errors']))
         elif _equal_dicts(msg, monitor, ['creator', 'overall_state', 'modified']):