Trinidad init.d script

gistfile1.txt

#! /bin/sh
# Generic script for running ruby scripts as daemons using
# jsvc and a java class to control the daemon.
#
# Contains common parameters and start/stop

# Things you'll need to set on a per script/daemon basis:
# SCRIPT_NAME - Path to the ruby script which creates a Daemon
# object for jsvc to control
# APP_NAME - Name of your application
#
# Things you can set:
# PROG_OPTS - Arguments to send to the program. A few defaults are appended to this.

JSVC=/mnt/java/jdk/bin/jsvc
JAVA_HOME=/mnt/java/jdk
JRUBY_HOME=/mnt/java/jruby
APP_PATH=/mnt/apps/velo-ul/current
RUBY_SCRIPT=/mnt/java/jruby-1.4.0/lib/ruby/gems/1.8/gems/trinidad_daemon-0.3.0/lib/trinidad_daemon.rb
JRUBY_JSVC_JAR=/mnt/java/jruby-1.4.0/lib/ruby/gems/1.8/gems/trinidad_daemon-0.3.0/trinidad-libs/jruby-jsvc.jar
DAEMON_JAR=/mnt/java/jruby-1.4.0/lib/ruby/gems/1.8/gems/trinidad_daemon-0.3.0/trinidad-libs/commons-daemon.jar

# Add here the options that Trinidad needs to run your application,
# but DO NOT delete the -d option, i.e -e production
TRINIDAD_OPTS="--config -d $APP_PATH -e staging"

PIDFILE=/mnt/apps/velo-ul/shared/pids/trinidad.pid 
LOG_FILE=/mnt/apps/velo-ul/shared/log/trinidad.log

# Implements the jsvc Daemon interface.
MAIN_CLASS=com.msp.jsvc.JRubyDaemon

CLASSPATH=$JRUBY_HOME/lib/jruby.jar:$JRUBY_HOME/lib/profile.jar:$DAEMON_JAR:$JRUBY_JSVC_JAR

# TODO: Allow configuration or detect from the OS
JAVA_NATIVE_PROPS="-Djna.boot.library.path=$JRUBY_HOME/lib/native/linux-i386:$JRUBY_HOME/lib/native/linux-amd64 \
-Djffi.boot.library.path=$JRUBY_HOME/lib/native/i386-Linux:$JRUBY_HOME/lib/native/s390x-Linux:$JRUBY_HOME/lib/native/x86_64-Linux"

JAVA_PROPS="$JAVA_PROPS -Djruby.memory.max=500m \
-Djruby.stack.max=1024k \
$JAVA_NATIVE_PROPS \
-Djruby.home=$JRUBY_HOME \
-Djruby.lib=$JRUBY_HOME/lib \
-Djruby.script=jruby \
-Djruby.shell=/bin/sh
-Djruby.daemon.module.name=Trinidad"

JAVA_OPTS="-Xmx500m -Xss1024k -Xbootclasspath/a:$JRUBY_HOME/lib/jruby.jar"

JSVC_ARGS="-home $JAVA_HOME \
$JSVC_ARGS_EXTRA \
-wait 20 \
-pidfile $PIDFILE \
-user $USER \
-procname jsvc-$SCRIPT_NAME \
-jvm server
-outfile $LOG_FILE \
-errfile &1"

#
# Stop/Start
#

STOP_COMMAND="$JSVC $JSVC_ARGS -stop $MAIN_CLASS"
START_COMMAND="$JSVC $JSVC_ARGS -cp $CLASSPATH $JAVA_PROPS $JAVA_OPTS $MAIN_CLASS $RUBY_SCRIPT $TRINIDAD_OPTS"

case "$1" in
    start)
      if [ -e "$PIDFILE" ]; then
          echo "Pidfile already exists, not starting."
          exit 1
      else
          echo "Starting $SCRIPT_NAME daemon..."
          $START_COMMAND
          EXIT_CODE=$?
          if [ "$EXIT_CODE" != 0 ]; then
        echo "Daemon exited with status: $EXIT_CODE. Check pidfile and log"
          fi
      fi
      ;;
    stop)
      if [ -e "$PIDFILE" ]; then
          echo "Stopping $SCRIPT_NAME daemon..."
          $STOP_COMMAND
      else
          echo "No pid file, not stopping."
          exit 1
      fi
      ;;
    restart)
      if [ -e "$PIDFILE" ]; then
          echo "Stopping $SCRIPT_NAME daemon..."
          $STOP_COMMAND
      fi
      if [ -e "$PIDFILE" ]; then
          echo "Pidfile still present, $SCRIPT_NAME hasn't stopped"
          exit 1
      else
          $START_COMMAND
          EXIT_CODE=$?
          if [ "$EXIT_CODE" != 0 ]; then
        echo "Daemon exited with status: $EXIT_CODE. Check pidfile and log"
          fi
      fi
      ;;
    status)
      if [ "$PIDFILE" ]; then
          PID=`cat $PIDFILE`
          OUTPUT=`ps $PID | egrep "^$PID "`
          if [ ${#OUTPUT} -gt 0 ]; then
        echo "Service running with pid: $PID"
          else
        echo "Pidfile present, but process not running"
          fi
      else
          echo "No pidfile present"
      fi
      ;;
    *)
      echo "Unrecognised command. Usage trinidad-daemon [ start | stop | restart ]"
      ;;
esac