aeolusproject/conductor

#!/bin/bash
#
#
# aeolus-conductor       startup script for aeolus-conductor
#
# chkconfig: - 99 01
# description: aeolus-conductor is the primary server process for the
#    Aeolus Conductor
#

[ -r /etc/sysconfig/conductor-rails ] && . /etc/sysconfig/conductor-rails

[ -r /etc/sysconfig/aeolus-conductor ] && . /etc/sysconfig/aeolus-conductor

RAILS_ENV="${RAILS_ENV:-production}"
CONDUCTOR_DIR="${CONDUCTOR_DIR:-/usr/share/aeolus-conductor}"
CONDUCTOR_USER="${CONDUCTOR_USER:-aeolus}"
CONDUCTOR_GROUP="${CONDUCTOR_GROUP:-aeolus}"
THIN_PROG="${THIN_PROG:-thin}"
THIN_PID="${THIN_PID:-/var/run/aeolus-conductor/thin.pid}"
THIN_LOG="${THIN_LOG:-/var/log/aeolus-conductor/thin.log}"
THIN_LOCKFILE="${THIN_LOCKFILE:-/var/lock/subsys/aeolus-conductor}"
PREFIX="${PREFIX:-/conductor}"
ADDR="${ADDR:-127.0.0.1}"

export RAILS_RELATIVE_URL_ROOT=$PREFIX

RETVAL=0
STARTTIMEOUT=60

. /etc/init.d/functions

start() {
    echo -n "Starting ${THIN_PROG}: "
    if [ -f "$THIN_PID" ] && checkpid `cat $THIN_PID` ; then
        echo_failure
        echo
        echo "${THIN_PROG} is already running"
        exit 1
    fi

    $THIN_PROG start -c "$CONDUCTOR_DIR" -l "$THIN_LOG" -P "$THIN_PID" \
    -a $ADDR -e $RAILS_ENV --user $CONDUCTOR_USER -g $CONDUCTOR_GROUP -d --prefix=$PREFIX \
    --rackup "$CONDUCTOR_DIR/config.ru" -A rails
    RETVAL=$?
    if [ $RETVAL -eq 0 ] ; then
        # wait until we can contact the server
        # this bit is based on what the mysql init script does
        TIMEOUT="$STARTTIMEOUT"
        while [ $TIMEOUT -gt 0 ]; do
            /usr/bin/curl --silent http://$ADDR:3000$PREFIX >& /dev/null
            RETVAL=$?
            if [ $RETVAL -eq 0 ] ; then
                touch ${THIN_LOCKFILE}
                echo_success
                echo
                exit 0
            fi
            sleep 1
            let TIMEOUT=${TIMEOUT}-1
        done
    fi

    echo_failure
    echo
    exit 1
}

stop() {
    echo -n "Shutting down ${THIN_PROG}: "
    killproc -p $THIN_PID ${THIN_PROG}
    RETVAL=$?
    echo
    [ $RETVAL = 0 ] && rm -f ${THIN_LOCKFILE} ${THIN_PID}
}

case "$1" in
    start)
        start
        ;;
    stop)
        stop
        ;;
    restart)
        stop
        start
        ;;
    reload)
        ;;
    force-reload)
        restart
        ;;
    status)
        status -p ${THIN_PID} ${THIN_PROG}
        RETVAL=$?
        ;;
    *)
        echo "Usage: aeolus-conductor {start|stop|restart|reload|force-reload|status}"
        exit 1
        ;;
esac

exit $RETVAL