Fedora Tomcat5 service 分析

/etc/init.d/tomcat5:

#!/bin/bash # # tomcat5      This shell script takes care of starting and stopping Tomcat # # chkconfig: - 80 20 # ### BEGIN INIT INFO # Provides: tomcat5 # Required-Start: $network $syslog # Required-Stop: $network $syslog # Default-Start: # Default-Stop: # Description: Release implementation for Servlet 2.4 and JSP 2.0 # Short-Description: start and stop tomcat ### END INIT INFO # # - originally written by Henri Gomez, Keith Irwin, and Nicolas Mailhot # - heavily rewritten by Deepak Bhole and Jason Corley # if [ -r /lib/lsb/init-functions ]; then     . /lib/lsb/init-functions else     exit 1 fi NAME="$(basename $0)" unset ISBOOT if [ "${NAME:0:1}" = "S" -o "${NAME:0:1}" = "K" ]; then     NAME="${NAME:3}"     ISBOOT="1" fi # For SELinux we need to use 'runuser' not 'su' if [ -x "/sbin/runuser" ]; then     SU="/sbin/runuser" else     SU="su" fi # Get the tomcat config (use this for environment specific settings) TOMCAT_CFG="/etc/tomcat5/tomcat5.conf " if [ -r "$TOMCAT_CFG" ]; then     . ${TOMCAT_CFG} fi # Get instance specific config file if [ -r "/etc/sysconfig/${NAME}" ]; then     . /etc/sysconfig/${NAME} fi if [ -z "${CATALINA_BASE}" ]; then     CATALINA_BASE="${CATALINA_HOME}" fi # Define which connector port to use CONNECTOR_PORT="${CONNECTOR_PORT:-8080 }" # Path to the tomcat launch script TOMCAT_SCRIPT="/usr/bin/dtomcat5" # Path to the script that will refresh jar symlinks on startup TOMCAT_RELINK_SCRIPT="${CATALINA_HOME}/bin/relink" # Tomcat program name TOMCAT_PROG="$NAME"          # Define the tomcat username TOMCAT_USER="${TOMCAT_USER:-tomcat}" # Define the tomcat log file TOMCAT_LOG="${TOMCAT_LOG:-/var/log/tomcat5/catalina.out}" RETVAL="0" function checkpid() {     local i     for i in $* ; do         if [ -d "/proc/${i}" ]; then             return 0         fi     done     return 1 } # Look for open ports, as the function name might imply function findFreePorts() {     local isSet1="false"     local isSet2="false"     local isSet3="false"     local lower="8000"     randomPort1="0"     randomPort2="0"     randomPort3="0"     local -a listeners="( $(                         netstat -ntl | \                         awk '/^tcp/ {gsub("(.)*:", "", $4); print $4}'                     ) )"     while [ "$isSet1" = "false" ] || \           [ "$isSet2" = "false" ] || \           [ "$isSet3" = "false" ]; do         let port="${lower}+${RANDOM:0:4}"         if [ -z `expr " ${listeners[*]} " : ".*\( $port \).*"` ]; then             if [ "$isSet1" = "false" ]; then                 export randomPort1="$port"                 isSet1="true"             elif [ "$isSet2" = "false" ]; then                 export randomPort2="$port"                 isSet2="true"             elif [ "$isSet3" = "false" ]; then                 export randomPort3="$port"                 isSet3="true"             fi         fi     done } function makeHomeDir() {     SAVE_UMASK=$(umask)     umask 022     if [ ! -d "${CATALINA_HOME}" ]; then         echo "${CATALINA_HOME} does not exist, creating"         if [ ! -d "/var/lib/${NAME}" ]; then             mkdir -p /var/lib/${NAME}             cp -pR /var/lib/tomcat5/* /var/lib/${NAME}         fi         mkdir -p ${CATALINA_HOME} ${CATALINA_HOME}/conf /var/cache/${NAME}/temp \             /var/cache/${NAME}/work /var/log/${NAME}         for i in temp work; do             ln -fs /var/cache/${NAME}/${i} ${CATALINA_HOME}/${i}         done         for i in common server shared webapps; do             ln -fs /var/lib/${NAME}/${i} ${CATALINA_HOME}/${i}         done         ln -fs /var/log/${NAME} ${CATALINA_HOME}/logs         cp -pLR /etc/tomcat5/* ${CATALINA_HOME}/conf/         cp -pLR /usr/share/tomcat5/bin ${CATALINA_HOME}         cp -pLR /var/cache/tomcat5/work/* ${CATALINA_HOME}/work/         chown ${TOMCAT_USER}:${TOMCAT_USER} /var/log/${NAME}     fi     umask ${SAVE_UMASK} } function parseOptions() {     options=""     options="$options $(                  awk '!/^#/ && !/^$/ { ORS=" "; print "export ", $0, ";" }' \                  $TOMCAT_CFG              )"     if [ -r "/etc/sysconfig/${NAME}" ]; then         options="$options $(                      awk '!/^#/ && !/^$/ { ORS=" ";                                             print "export ", $0, ";" }' \                      /etc/sysconfig/${NAME}                  )"     fi     TOMCAT_SCRIPT="$options $TOMCAT_SCRIPT" } # See how we were called. function start() {     echo -n "Starting ${TOMCAT_PROG}: "     if [ -f "/var/lock/subsys/${NAME}" ] ; then         if [ -f "/var/run/${NAME}.pid" ]; then             read kpid < /var/run/${NAME}.pid                 if checkpid $kpid 2>&1; then                     echo "$NAME process already running"                         return -1                     else                         echo "lock file found but no process running for"                         echo "pid $kpid, continuing"                 fi         fi     fi     export CATALINA_PID="/var/run/${NAME}.pid"     touch $CATALINA_PID     chown ${TOMCAT_USER}:${TOMCAT_USER} $CATALINA_PID     if [ "$CATALINA_HOME" != "/usr/share/tomcat5" ]; then         # Create a tomcat directory if it doesn't exist         makeHomeDir         # If CATALINA_HOME doesn't exist modify port number so that         # multiple instances don't interfere with each other         findFreePorts         sed -i -e "s/8005/${randomPort1}/g" -e "s/8080/${CONNECTOR_PORT}/g" \             -e "s/8009/${randomPort2}/g" -e "s/8443/${randomPort3}/g" \             ${CATALINA_HOME}/conf/server.xml     fi     touch $TOMCAT_LOG     chown ${TOMCAT_USER}:${TOMCAT_USER} $TOMCAT_LOG     if [ "$RELINK" = "yes" ]; then         $TOMCAT_RELINK_SCRIPT     fi     $SU - $TOMCAT_USER -c "$TOMCAT_SCRIPT start" >> $TOMCAT_LOG 2>&1     RETVAL="$?"     if [ "$RETVAL" -eq 0 ]; then          log_success_msg         touch /var/lock/subsys/${NAME}     else         log_failure_msg     fi     #echo     return $RETVAL } function status() {     RETVAL="1"     if [ -f "/var/run/${NAME}.pid" ]; then         read kpid < /var/run/${NAME}.pid         if checkpid $kpid 2>&1; then             echo "$0 is already running (${kpid})"             RETVAL="0"         else             echo "lock file found but no process running for pid $kpid"         fi     else         pid="$(pgrep -u ${TOMCAT_USER} -G ${TOMCAT_USER} java)"         if [ -n "$pid" ]; then             echo "$0 running (${pid}) but no PID file exists"             RETVAL="0"         else             echo "$0 is stopped"         fi     fi     return $RETVAL } function stop() {     local STOP_VERBOSE="false"     echo -n "Stopping $TOMCAT_PROG: "     if [ -f "/var/lock/subsys/${NAME}" ]; then         $SU - $TOMCAT_USER -c "$TOMCAT_SCRIPT stop" >> $TOMCAT_LOG 2>&1         RETVAL="$?"         if [ "$RETVAL" -eq "0" ]; then             count="0"             if [ -f "/var/run/${NAME}.pid" ]; then                 read kpid < /var/run/${NAME}.pid                 until [ "$(ps --pid $kpid | grep -c $kpid)" -eq "0" ] || \                       [ "$count" -gt "$SHUTDOWN_WAIT" ]; do                     if [ "$STOP_VERBOSE" = "true" ]; then                         echo -n -e "\nwaiting for processes $kpid to exit"                     fi                     sleep 1                     let count="${count}+1"                 done                 if [ "$count" -gt "$SHUTDOWN_WAIT" ]; then                     if [ "$STOP_VERBOSE" = "true" ]; then                         echo -n -e "\nkilling processes which didn't stop"                         echo -n -e "after "                         echo -n "$SHUTDOWN_WAIT seconds"                     fi                     kill -9 $kpid                 fi                 if [ "$STOP_VERBOSE" = "true" -a "$count" -gt "0" ]; then                     echo -n -e "\n"                 fi                 log_success_msg             else                 log_failure_msg             fi             rm -f /var/lock/subsys/$NAME /var/run/$NAME.pid         else             log_failure_msg         fi     else         log_failure_msg     fi     #echo } # See how we were called. case "$1" in     start)         parseOptions         start         ;;     stop)         parseOptions         stop         ;;     restart)         parseOptions         stop         sleep 2             start         ;;     condrestart|try-restart)         if [ -f "/var/run/${NAME}.pid" ]; then             parseOptions             stop             start         fi         ;;     reload)         RETVAL="3"         ;;     force-reload)         if [ -f "/var/run/${NAME}.pid" ]; then             stop             start         fi         ;;     status)         status         ;;     version)         parseOptions         "${JAVA_HOME}/bin/java" \             -classpath "${CATALINA_HOME}/server/lib/[tomcat5][catalina].jar" \             org.apache.catalina.util.ServerInfo         ;;     *)         echo "Usage: $TOMCAT_PROG {start|stop|restart|condrestart|try-restart|reload|force-reload|status|version}"         exit 1 esac exit $RETVAL

/etc/tomcat5/tomcat5.conf:

# System-wide  configuration file for tomcat5 services # This will be sourced by tomcat5 and any secondary service # Values will be overridden by service-specific configuration # files in /etc/sysconfig # Use this one to change default values for all services # Change the service specific ones to affect only one service # (see, for instance, /etc/sysconfig/tomcat5) # # tomcat5 service configuration file # you could also override JAVA_HOME here # Where your java installation lives JAVA_HOME="/usr/lib/jvm/java-1.6.0" # Where your tomcat installation lives # That change from spanvious RPM where TOMCAT_HOME  # used to be /var/tomcat. # Now /var/tomcat will be the base for webapps only CATALINA_HOME="/usr/share/tomcat5" JASPER_HOME="/usr/share/tomcat5" CATALINA_TMPDIR="/usr/share/tomcat5/temp" JAVA_ENDORSED_DIRS="/usr/share/tomcat5/common/endorsed" # You can pass some parameters to java # here if you wish to #JAVA_OPTS="-Xminf0.1 -Xmaxf0.3" # Use JAVA_OPTS to set java.library.path for libtcnative.so #JAVA_OPTS="-Djava.library.path=/usr/lib64" # Bug 190: # https://www.jpackage.org/bugzilla/show_bug.cgi?id=190  # System property catalina.ext.dirs should be set to its default value # for ExtensionValidator to be functional.  JAVA_OPTS="$JAVA_OPTS -Dcatalina.ext.dirs=$CATALINA_HOME/shared/lib:$CATALINA_HOME/common/lib" # What user should run tomcat TOMCAT_USER="tomcat" # You can change your tomcat locale here #LANG=en_US # Time to wait in seconds, before killing process SHUTDOWN_WAIT=30 # Set the TOMCAT_PID location CATALINA_PID=/var/run/tomcat5.pid # Connector port is 8080 for this tomcat5 instance #CONNECTOR_PORT=8080 # Change to yes if you want the tomcat init script to run the relink script RELINK="no" # If you wish to further customize your tomcat environment, # put your own definitions here # (i.e. LD_LIBRARY_PATH for some jdbc drivers) # Just do not forget to export them :)

/etc/tomcat5/tomcat5.conf:

# Service-specific  configuration file for tomcat5 services # This will be sourced by the SysV service script after the global # configuration file /etc/tomcat5/tomcat5.conf, thus allowing values # to be overridden on a per-service way # # NEVER change the init script itself: # To change values for all services make your changes in # /etc/tomcat5/tomcat5.conf # To change values  for a specific service, change it here # To create a new service , create a link  from /etc/init.d/ to # /etc/init.d/tomcat5 (do not copy the init script) and make a copy  of the # /etc/sysconfig/tomcat5 file to /etc/sysconfig/ and change # the property values so the two services won't conflict # Register the new service in the system as usual (see chkconfig and similars) #