Tomcat startup/shutdown script for instances behind proxy.

tomcat_instances_proxy.sh

#!/bin/bash
#Tomcat Startup and Shutdown Script for Instances Behind Proxy Server
#Created By Mughil Anand Nainar

exit_usage ()
{
  USAGE="Usage: $1 { start | stop | version } $2 (linux) $3 ( instance0 | instance1 )"
  echo "${USAGE}"
  exit 1
}

general_env_setup ()
{
  cat /dev/null
  PROXY_HOST=ip-address
  PROXY_PORT=port
  EXCLUDE_PROXY='hostname1|hostanme2'
}

general_instance_env_setup ()
{
  NLS_LANG="Language"
  CATALINA_BASE=/usr/local/tomcat/instance0
  JAVA_OPTS="-server -Dapp.log.environment=hostname1 -Xmx4096M -XX:PermSize=256m -XX:MaxPermSize=512m -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+PrintGCDateStamps -Xloggc:/var/log/tomcat/gc.log -Djava.awt.headless=true -Dfile.encoding=UTF-8 -Dsun.lang.ClassLoader.allowArraySyntax=true -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager"
  JAVA_OPTS="${JAVA_OPTS} -Dhttp.proxyHost=${PROXY_HOST} \
             -Dhttp.proxyPort=${PROXY_PORT} -Dhttp.nonProxyHosts=${EXCLUDE_PROXY}"
  JAVA_OPTS="${JAVA_OPTS} -Dhttps.proxyHost=${PROXY_HOST} \
             -Dhttps.proxyPort=${PROXY_PORT} -Dhttps.nonProxyHosts=${EXCLUDE_PROXY}"
  CLASSPATH="$JAVA_HOME"/lib/tools.jar
  export CATALINA_BASE JAVA_OPTS CLASSPATH NLS_LANG
}

if [ $# -ne 3 ]; then
    echo "Wrong number of arguments"
    exit_usage
fi

general_env_setup
ENV=$2
general_instance_env_setup
STARTUP_OPTS=

case "${ENV}" in
  linux)
    JAVA_HOME=/usr/local/java/java
    PATH=$JAVA_HOME/bin:$PATH
    export JAVA_HOME PATH
    TOMCAT_HOME=/usr/local/tomcat/instance0
  ;;
  *)
    echo "Unconfigured Environment"
    exit_usage
  ;;
esac

cd ${CATALINA_BASE}/temp

case "$1" in
  start)
    if [ " $3 " == " instance0 " ];
    then
        echo -n "Starting Tomcat INSTANCE 0: "
        echo ""
        export JAVA_OPTS="${JAVA_OPTS} -Dlog.home=/usr/local/tomcat/$3/logs"
        export CATALINA_BASE="/usr/local/tomcat/instance0"
        ${TOMCAT_HOME}/bin/startup.sh ${STARTUP_OPTS}
    elif [ " $3 " == " instance1 " ]
    then
        echo -n "Starting Tomcat INSTANCE 1: "
        echo  ""
        export JAVA_OPTS="${JAVA_OPTS} -Dlog.home=/usr/local/tomcat/$3/logs"
        export CATALINA_BASE="/usr/local/tomcat/instance1"
        ${TOMCAT_HOME}/bin/startup.sh ${STARTUP_OPTS}
    else
        echo " Unconfigured Tomcat Instance "
        exit_usage
    fi
    echo "."
  ;;

  stop)
    if [ " $3 " == " instance0 " ];
    then
        echo -n "Stopping Tomcat INSTANCE 0: "
        echo ""
        export CATALINA_BASE="/usr/local/tomcat/instance0"
        ${TOMCAT_HOME}/bin/shutdown.sh
        sleep 5
        pid=$(echo `ps aux | grep "[t]omcat/$3/logs" | awk '{print $2}'`)
        if [ -n "$pid" ];
        then
            kill -9 $pid
        fi
        echo -n " Successfully Stopped Tomcat $3 "
    elif [ " $3 " == " instance1 " ]
    then
        echo -n "Stopping Tomcat INSTANCE 1: "
        echo -n ""
        export CATALINA_BASE="/usr/local/tomcat/instance1"
        ${TOMCAT_HOME}/bin/shutdown.sh
        sleep 5
        pid=$(echo `ps aux | grep "[t]omcat/$3/logs" | awk '{print $2}'`)
        if [ -n "$pid" ];
        then
            kill -9 $pid
        fi
        echo -n " Successfully Stopped Tomcat $3 "
    else
        echo " Unconfigured Tomcat Instance "
        exit_usage
    fi
    echo "."
  ;;
  version)
    ${TOMCAT_HOME}/bin/version.sh
  ;;
  *)
    echo " Unconfigured Service "
    exit_usage
  ;;