Docker Container Build and Run setup with foundations for adding docker integration tests. Docker images built with Hadoop 2.8.4 Hive 2.3.3 and Spark 2.3.1 and published to docker-hub

Look at quickstart document for how to setup docker and run demo

docker/hoodie/hadoop/sparkworker/worker.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+
+. "/spark/sbin/spark-config.sh"
+
+. "/spark/bin/load-spark-env.sh"
+
+mkdir -p $SPARK_WORKER_LOG
+
+export SPARK_HOME=/opt/spark
+
+ln -sf /dev/stdout $SPARK_WORKER_LOG/spark-worker.out
+
+date
+echo "SPARK HOME is : $SPARK_HOME"
+/opt/spark/sbin/../bin/spark-class org.apache.spark.deploy.worker.Worker \
+    --webui-port $SPARK_WORKER_WEBUI_PORT $SPARK_MASTER >> $SPARK_WORKER_LOG/spark-worker.out