Added input verification

Author: VenkatRamaraju

plugins/modules/requeue_after.py

@@ -16,46 +16,37 @@ class KubernetesException(Exception):
                     'supported_by': 'community'}
 
 DOCUMENTATION = '''
-
 module: requeue_after
-
 short_description: Tells the controller to re-trigger reconciliation after the specified time
-
 version_added: "0.1"
-
 author: "Venkat Ramaraju (@VenkatRamaraju)"
-
 description:
   - Tells the controller to pause reconciliation and resume reconciliation after a specified amounts of time. 
     If the requeue_reconciliation period is set to 't', reconciliation will occur in intervals of 't'.
-    
+
 options:
   time:
     type: str
     description:
     - A string containing a time period that will be set on the returned JSON object and then used to requeue 
       reconciliation of an event. Time can be specified in any combination of hours, minutes, and seconds.
-
 '''
 
 EXAMPLES = '''
-
 - name: "Running the requeue_after module"
     requeue_after: 
         time: 24h
-        
+
 - name: "Running the requeue_after module"
     requeue_after: 
         time: 30m
-        
+
 - name: "Running the requeue_after module"
     requeue_after: 
         time: 5s
-
 '''
 
 RETURN = '''
-
 result:
   description:
   - If a requeue period was specified under 'time' when calling the requeue_after period from the module, 
@@ -80,17 +71,20 @@ class KubernetesException(Exception):
        requeued after.
        returned: success
        type: str
-
 '''
 
 from ansible.module_utils.basic import AnsibleModule
+import re
 
 
 def requeue_after():
     module = AnsibleModule(argument_spec={
         'time': {'type': 'str', 'required': True},
     })
 
+    if not re.match("^[hms0-9]*$", module.params['time']):
+        module.fail_json(msg="invalid time input")
+
     result = dict(
         period=module.params['time'],
     )
@@ -103,4 +97,4 @@ def main():
 
 
 if __name__ == '__main__':
-    main()
+    main()