title: Trigger spark submit jobs from airflow on Dataproc Cluster without SSH
body: <p>currently, am executing my spark-submit commands in airflow by SSH using  <code>BashOperator</code> &amp; <code>BashCommand</code> but our client is not allowing us to do SSH into the cluster, is that possible to execute the <code>Spark-submit</code> command without SSH into cluster from airflow?</p>