Dockerfile

    from resin/rpi-raspbian

    MAINTAINER KiwenLau <kiwenlau@gmail.com>

    WORKDIR /root

    # make directory
    RUN mkdir /opt/hadoop
    RUN mkdir /opt/hadoop_tmp

    # install openssh-server, openjdk and wget
    RUN apt-get update && apt-get install oracle-java8-jdk
    RUN java -version

    # passwordless ssh
    RUN ssh-keygen -t rsa -b 4096 -C imoham3@uic.edu

    # replicate SSH keys
    RUN ssh-copy-id user@master
    RUN ssh-copy-id user@slave-01
    RUN ssh-copy-id user@slave-02
    RUN ssh-copy-id user@slave-03
    RUN ssh-copy-id user@slave-04
    RUN ssh-copy-id user@slave-05
    RUN ssh-copy-id user@slave-06
    RUN ssh-copy-id user@slave-07

    # -- HADOOP ENVIRONMENT VARIABLES START -- #
    RUN export HADOOP_HOME=/opt/hadoop/hadoop
    RUN export PATH=$PATH:$HADOOP_HOME/bin
    RUN export PATH=$PATH:$HADOOP_HOME/sbin
    RUN export HADOOP_MAPRED_HOME=$HADOOP_HOME
    RUN export HADOOP_COMMON_HOME=$HADOOP_HOME
    RUN export HADOOP_HDFS_HOME=$HADOOP_HOME
    RUN export YARN_HOME=$HADOOP_HOME
    RUN export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_HOME/lib/native
    RUN export HADOOP_OPTS="-Djava.library.path=$HADOOP_HOME/lib"
    # -- HADOOP ENVIRONMENT VARIABLES END -- #
    RUN export JAVA_HOME=/usr/lib/jvm/jdk-8-oracle-arm32-vfp-hflt/jre 


    # install hadoop 2.7.2
    RUN cd /opt/hadoop/
    RUN sudo wget http://www-us.apache.org/dist/hadoop/common/hadoop-2.6.4/hadoop-2.6.4.tar.gz
    RUN sudo tar xvf hadoop-2.6.4.tar.gz
    RUN mv hadoop-2.6.4 hadoop

    # set environment variable
    ENV JAVA_HOME=/usr/lib/jvm/java-7-openjdk-amd64 
    ENV HADOOP_HOME=/usr/local/hadoop 
    ENV PATH=$PATH:/usr/local/hadoop/bin:/usr/local/hadoop/sbin 

    # setup hdfs
    RUN sudo mkdir /opt/hadoop_tmp/hdfs
    RUN sudo mkdir /opt/hadoop_tmp/hdfs/namenode

    # copy configurations to slave nodes
    RUN rsync -avxP $HADOOP_HOME pirate@10.0.0.13:$HADOOP_HOME

    CMD [ "sh", "-c", "service ssh start; bash"]