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trinidad daemon config
#! /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/lib/ruby/gems/1.8/gems/trinidad_daemon-0.3.1/lib/trinidad_daemon.rb
JRUBY_JSVC_JAR=/mnt/java/jruby/lib/ruby/gems/1.8/gems/trinidad_daemon-0.3.1/trinidad-libs/jruby-jsvc.jar
DAEMON_JAR=/mnt/java/jruby/lib/ruby/gems/1.8/gems/trinidad_daemon-0.3.1/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="-d $APP_PATH -e staging --config"
PIDFILE=/mnt/apps/velo-ul/shared/pids/trinidad.pid
LOG_FILE=/mnt/apps/velo-ul/shared/log/trinidad.log
# Implements the jsvc Daemon interface.
MAIN_CLASS=com.msp.jsvc.JRubyDaemon
CLASSPATH=$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=$JRUBY_HOME/lib \
-Djruby.script=jruby \
-Djruby.shell=/bin/sh
-Djruby.daemon.module.name=Trinidad"
JAVA_OPTS="-Xmx512m -Xss1024k -Xbootclasspath/a:$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"
cd $APP_PATH || exit 1
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 [ start | stop | restart ]"
;;
esac
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