[CentOS7] Tomcat 설치 및 설정

1. tomcat다운로드

2. 아래 전 과정은 root가 필요한 별도 명령어를 제외하고 tomcat계정으로 실행

   $ su - tomcat

3. 전송 및 압축해제

   $ mkdir /u00/tomcat
   $ tar xvfp apache-tomcat-8.5.12.tar.gz

4. 실행스크립트

   $ vi /u00/tomcat/apache-tomcat-8.5.12/bin/setenv.sh
   
   ## 1. service name
   TomcatUser="tomcat"
   CATALINA_OUT="/u00/tomcat/apache-tomcat-8.5.12/logs/catalina.out"
   JAVA_HOME="/u00/java/jdk1.8.0_261/"
   CATALINA_HOME="/u00/tomcat/apache-tomcat-8.5.12"
   
   ## 2. JAVA Options
   ## Max HEAP Size
   MAX_HEAP_SIZE="2G"
   JAVA_OPTS="$JAVA_OPTS -Xmx$MAX_HEAP_SIZE -Xms$MAX_HEAP_SIZE"
   ## IBM JAVA MaxPermSize and GC Path not support!!!
   #JAVA_OPTS="$JAVA_OPTS -XX:MaxPermSize=256m -Xloggc:$CATALINA_HOME/logs/gc/gc.log"
   JAVA_OPTS="$JAVA_OPTS -Xloggc:$CATALINA_HOME/logs/gc/gc.log"
   JAVA_OPTS="$JAVA_OPTS -server -d64 -XX:+UseParallelGC -XX:ParallelGCThreads=4"
   JAVA_OPTS="$JAVA_OPTS -XX:-UseGCOverheadLimit"
   JAVA_OPTS="$JAVA_OPTS -verbose:gc"
   JAVA_OPTS="$JAVA_OPTS -XX:+PrintGCDetails -XX:+PrintGCTimeStamps"
   JAVA_OPTS="$JAVA_OPTS -XX:+PrintHeapAtGC -XX:+HeapDumpOnOutOfMemoryError"
   JAVA_OPTS="$JAVA_OPTS -XX:HeapDumpPath=$CATALINA_HOME/logs/gc/"
   
   
   ## 3. tomcat user check
   if [ "`whoami`" != "${TomcatUser}" ] ; then
   echo "Run as ${TomcatUser} user !!!"
   echo "su - ${TomcatUser} -c `pwd`/$0 $*"
   exit 1
   fi
   
   ## 4. Move logs
   Today=`date +%Y-%m-%d`
   HMS=`date '+%H%M%S'`
   logs="$CATALINA_OUT $CATALINA_HOME/logs/gc/gc.log"
   for log in $logs ; do
   if [ ! -f $log-$Today -a -f $log ] ; then
   mv -b -S "-$HMS" $log $log-$Today &> /dev/null
   fi
   done

5.  실행권한부여

   $ chmod 700 /u00/tomcat/apache-tomcat-8.5.12/bin/setenv.sh

6. server.xml수정

   $ vi /u00/tomcat/apache-tomcat-8.5.12/conf/server.xml
   
   <Connector port="8080" protocol="HTTP/1.1"
                  connectionTimeout="20000"
                  redirectPort="8443" 
                  maxThreads="1024"
                  acceptorThreadCount="4"
                  keepAliveTimeout="3000"
                  maxKeepAliveRequests="1000"
                  URIEncoding="UTF-8"
       />
   
   
   <!--<Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />-->

7. 서비스설정을 위한 스크립트

   $ vi /u00/tomcat/apache-tomcat-8.5.12/bin/tomcatctl
   
   #!/bin/bash
   #
   # tomcat     This shell script takes care of starting and stopping Tomcat
   #
   # chkconfig: - 80 20
   #
   ### BEGIN INIT INFO
   # Provides: tomcat
   # Required-Start: $network $syslog
   # Required-Stop: $network $syslog
   # Default-Start:
   # Default-Stop:
   # Short-Description: start and stop tomcat
   ### END INIT INFO
    
   TOMCAT_USER="tomcat"
   TOMCAT_HOME="/u00/tomcat/apache-tomcat-8.5.12/"
   SHUTDOWN_WAIT=50 # Second
   
   . /etc/bashrc
    
   tomcat_pid() {
       echo `ps aux | grep org.apache.catalina.startup.Bootstrap | grep $TOMCAT_HOME | grep -v grep | awk '{ print $2 }'`
   }
    
   start() {
       pid=$(tomcat_pid)
       if [ -n "$pid" ] ; then
           echo "Tomcat is already running (pid: $pid)"
       else
           # Start tomcat
           echo "Starting tomcat"
           if [ "`whoami`" != "$TOMCAT_USER" ] ; then
             /bin/su -l $TOMCAT_USER -s /bin/bash -c "cd $TOMCAT_HOME/bin && $TOMCAT_HOME/bin/startup.sh"
           else 
             cd $TOMCAT_HOME/bin && $TOMCAT_HOME/bin/startup.sh
           fi
       fi
       return 0
   }
    
   stop() {
       pid=$(tomcat_pid)
       if [ -n "$pid" ] ; then
           echo "Stoping Tomcat"
           if [ "`whoami`" != "$TOMCAT_USER" ] ; then
             /bin/su -l $TOMCAT_USER -s /bin/bash -c "cd $TOMCAT_HOME/bin && $TOMCAT_HOME/bin/shutdown.sh"
           else
             cd $TOMCAT_HOME/bin && $TOMCAT_HOME/bin/shutdown.sh
           fi
           let kwait=$SHUTDOWN_WAIT
           count=0
           count_by=1
       
           until [ `ps -p $pid | grep -c $pid` = '0' ] || [ $count -gt $kwait ] ; do
              echo "Waiting for processes to exit. Timeout before we kill the pid: ${count}/${kwait}"
              sleep $count_by
              let count=$count+$count_by;
           done
           if [ $count -gt $kwait ]; then
              echo "Killing processes which didn't stop after $SHUTDOWN_WAIT seconds"
              kill -9 $pid
           fi
       else
           echo "Tomcat is not running"
       fi
    
       return 0
   }
   
   if [ "`whoami`" != "${TOMCAT_USER}" -a "`whoami`" != "root" ] ; then
           echo "Run as ${TOMCAT_USER} user !!!"
           echo "su - ${TOMCAT_USER} -c `pwd`/$0 $*"
           exit 1
   fi
   
    
   case $1 in
       start)
           start
           ;;
       stop)
           stop
           ;;
       restart)
           stop
           start
           ;;
       status)
          pid=$(tomcat_pid)
           if [ -n "$pid" ]
           then
              echo "Tomcat is running with pid: $pid"
           else
              echo "Tomcat is not running"
           fi
           ;;
       *)
           echo "Usage : $0 [start|stop|restart|status]"
   	;;
   esac
    
   exit 0
   
   
   

8. 서비스등록 및 자동재시작

   $ chmod 700 /u00/tomcat/apache-tomcat-8.5.12/bin/tomcatctl
   $ su root
   $ ln -s /u00/tomcat/apache-tomcat-8.5.12/bin/tomcatctl /etc/init.d/tomcat
   $ systemctl enable tomcat
   $ chkconfig --add tomcat
   $ chkconfig tomcat on

   1. 
      

9. 서비스 시작 및 종료 , 재시작, 상태 등

   $ service tomcat start
   $ service tomcat stop
   $ service tomcat restart
   $ service tomcat status

10. sudo 권한 부여

    $root visudo
    
    ## tomcat
    
    tomcat ALL=/usr/sbin/service tomcat, /usr/bin/systemctl start nginx, /usr/bin/systemctl stop nginx
    tomcat ALL=NOPASSWD: ALL

11. 편의기능

    1. 심볼릭 링크를 통한 배포 위치 설정

       $ ln -s /u00/tomcat/apache-tomcat-8.5.12/webapps/ ./

    2. ls -s 원본 링크