SPARK_HOME="/home/osboxes/Downloads/spark-3.2.2-bin-hadoop3.2"
SPARK_MASTER="spark://osboxes:7077"

"$SPARK_HOME"/sbin/start-master.sh
SPARK_WORKER_INSTANCES=5 "$SPARK_HOME"/sbin/start-worker.sh "$SPARK_MASTER"
docker run -d -p 9042:9042 cassandra