diff --git a/spark/1.6.0/Dockerfile b/spark/1.6.0/Dockerfile
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--- a/spark/1.6.0/Dockerfile
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-FROM alpine:3.8
-
-MAINTAINER Newnius <newnius.cn@gmail.com>
-
-USER root
-
-# Prerequisites
-RUN apk add --no-cache openssh openssl openjdk8-jre rsync bash procps coreutils
-
-ENV JAVA_HOME /usr/lib/jvm/java-1.8-openjdk
-
-ENV PATH $PATH:$JAVA_HOME/bin
-
-ENV SPARK_VER 1.6.0
-
-RUN wget https://archive.apache.org/dist/spark/spark-$SPARK_VER/spark-$SPARK_VER-bin-hadoop2.6.tgz && \
-	tar -xvf spark-$SPARK_VER-bin-hadoop2.6.tgz -C /usr/local && \
-	rm spark-$SPARK_VER-bin-hadoop2.6.tgz
-
-RUN ln -s /usr/local/spark-$SPARK_VER-bin-hadoop2.6 /usr/local/spark
-
-ENV SPARK_HOME /usr/local/spark
-
-ENV PATH $PATH:$SPARK_HOME/bin
-
-ADD bootstrap.sh /etc/bootstrap.sh
-
-WORKDIR /usr/local/spark
-
-ENTRYPOINT ["/etc/bootstrap.sh"]
diff --git a/spark/1.6.0/README.md b/spark/1.6.0/README.md
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-# Deploy Spark Cluster of standalone mode
-
-## Master
-
-```bash
-docker service create \
-	--name spark-master \
-	--hostname spark-master \
-	--network swarm-net \
-	--replicas 1 \
-	--detach true \
-	--endpoint-mode dnsrr \
-	newnius/spark:1.6.0 master
-```
-
-## Slaves
-
-```bash
-docker service create \
-	--name spark-slave \
-	--network swarm-net \
-	--replicas 5 \
-	--detach true \
-	--endpoint-mode dnsrr \
-	newnius/spark:1.6.0 slave spark://spark-master:7077
-```
-
-## Validate installation
-
-#### spark-submit PI
-
-```bash
-spark-submit \
-	--master spark://spark-master:7077 \
-	--deploy-mode cluster \
-	--class org.apache.spark.examples.JavaSparkPi \
-	./examples/jars/spark-examples_2.11-1.6.0.jar 100
-```
-
-#### spark-shell HDFS wordcount
-
-Enter `spark-shell --master spark://spark-master:7077` to enter shell.
-
-```shell
-val lines = sc.textFile("hdfs://hadoop-master:8020/user/root/input")
-
-val words = lines.flatMap(_.split("\\s+"))
-
-val wc = words.map(word => (word, 1)).reduceByKey(_ + _)
-
-wc.collect()
-
-val cnt = words.map(word => 1).reduce(_ + _)
-```
-
-## Browse the web UI
-
-You can expose the ports in the script, but I'd rather not since the slaves shoule occupy the same ports.
-
-To access the web UI, deploy another (socks5) proxy to route the traffic.
-
-If you don't one, try [newnius/docker-proxy](https://hub.docker.com/r/newnius/docker-proxy/), it is rather easy to use.
-
-Visit [spark-master:8080](http://spark-master:8080) to view the cluster.
diff --git a/spark/1.6.0/bootstrap.sh b/spark/1.6.0/bootstrap.sh
deleted file mode 100755
index d1b8b0b..0000000
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@@ -1,11 +0,0 @@
-#! /bin/bash
-
-if [[ $1 == "master" ]]; then
-	/usr/local/spark/sbin/start-master.sh
-fi
-
-if [[ $1 == "slave" ]]; then
-	/usr/local/spark/sbin/start-slave.sh $2
-fi
-
-while true; do sleep 1000; done