install-zeppelin.sh

#!/usr/bin/env bash

set -e
set -o pipefail

# iptables does not exists in this container
# echo "Disable ipatbles"
# sudo service iptables stop
# sudo chkconfig iptables off

pushd /usr/local/
  if [ ! -d zeppelin ]; then

    #
    read -p "Make sure you have already started hadoop services. (yes to continue, no to abort and try again after your services started) [y/N]" -n 1 -r
    echo ""
    if [[ $REPLY =~ ^[Yy]$ ]]; then
        echo "Starting..."
    else
        echo "Aborted.."
        exit 1
    fi

    echo "Downloading Zeppelin..."
    wget http://sunlab.org/teaching/download/zeppelin-0.7.3-bin-netinst.tgz
    tar -xzf zeppelin-0.7.3-bin-netinst.tgz
    rm -rf zeppelin-0.7.3-bin-netinst.tgz
    mv zeppelin-0.7.3-bin-netinst zeppelin

    pushd zeppelin

      echo 'List Interpreters...'
      ./bin/install-interpreter.sh  -l

      REQUIRED_INTERPRETERS=file,hbase,md,shell,python,pig
      echo "Install Interpreters: $REQUIRED_INTERPRETERS"
      ./bin/install-interpreter.sh  -n $REQUIRED_INTERPRETERS

      echo 'Update Configures...'
      cat conf/zeppelin-site.xml.template > conf/zeppelin-site.xml
      sed -i 's/8080/9530/' conf/zeppelin-site.xml
      echo '#!/bin/bash' > conf/zeppelin-env.sh
      # initialize the environment
      echo '[ -f /etc/profile.d/bigbox.sh ] && . /etc/profile.d/bigbox.sh' >> conf/zeppelin-env.sh
      # unmatched spark
      echo 'unset SPARK_HOME' >> conf/zeppelin-env.sh # use embedded spark binaries
      cat conf/zeppelin-env.sh.template >> conf/zeppelin-env.sh
      # when user want to run interpreter as end web user
      echo 'export ZEPPELIN_IMPERSONATE_CMD='"'"'sudo -H -u ${ZEPPELIN_IMPERSONATE_USER} bash -c '"'"'' >> conf/zeppelin-env.sh

      # logs is exists..
      # mkdir logs
      [ -d logs ] && chmod 777 logs

    popd # /usr/local/

    (! id -u zeppelin > /dev/null 2>&1 ) && adduser zeppelin
    chown -R zeppelin:zeppelin zeppelin
    sudo -u hdfs hdfs dfs -mkdir -p /user/zeppelin
    sudo -u hdfs hdfs dfs -chown -R zeppelin:zeppelin /user/zeppelin

    echo 'Zeppelin is Ready Now!'
    echo 'Please use this command to start your service: '
    echo 'sudo -u zeppelin /usr/local/zeppelin/bin/zeppelin-daemon.sh start'
    echo 'Please use this command to stop your service: '
    echo 'sudo -u zeppelin /usr/local/zeppelin/bin/zeppelin-daemon.sh stop'

  else

    echo "DIR: /usr/local/zeppelin detected, stop the installing progress"
    echo "This used to prevent this script executed twice"
    echo "If this folder is installed by yourself, please erase it first"

  fi

popd # /