add a delay after activating pool for jail storage

truenas_kmip_unlock.py

@@ -506,6 +506,8 @@ if __name__ == '__main__':
     response = request('jail/activate', api_key, 'POST', '{}'.format(jail_storage_pool))
     if response['ok']:
         logger.info('Successfully set jail storage pool to {}'.format(jail_storage_pool))
+        logger.debug("Sleeping for 15 seconds")
+        time.sleep(15)
         # restart the jails service
         #jails_service_name = 'jails'
         #logger.debug('Restarting the {} service'.format(jails_service_name))