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/spark_base/execute-step.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+if [ $ENABLE_INIT_DAEMON = "true" ]
+   then
+       echo "Execute step ${INIT_DAEMON_STEP} in pipeline"
+       while true; do
+	   sleep 5
+	   echo -n '.'
+	   string=$(curl -sL -w "%{http_code}" -X PUT $INIT_DAEMON_BASE_URI/execute?step=$INIT_DAEMON_STEP -o /dev/null)
+	   [ "$string" = "204" ] && break
+       done
+       echo "Notified execution of step ${INIT_DAEMON_STEP}"
+fi
+