How to pass environment variables to spark driver in cluster mode with spark-submit
<p><code>spark-submit</code> allows to configure the executor environment variables with <code>--conf spark.executorEnv.FOO=bar</code>, and the Spark REST API allows to pass some environment variables with the <code>environmentVariables</code> field.
Unfortunately I've found nothing similar to configure the environment variable of the driver when submitting the driver with <code>spark-submit</code> in cluster mode:</p>

<pre><code>spark-submit --deploy-mode cluster myapp.jar
</code></pre>

<p>Is it possible to set the environment variables of the driver with <code>spark-submit</code> in cluster mode?</p>