Sidekiq (http://sidekiq.org ) is a simple, efficient background processing for Ruby.
Sidekiq is easy to use, easy to setup. However, to make sidekiq run at startup is not so easy.
There ’s also a nice script here (https://github.com/mperham/sidekiq/blob/master/examples/sidekiq ),
although I ’ve got few problems with it.
If we have another user for deploying, then command bundle exec only accessed with ‘deploy’ user.
Root had no access to bundle exec.
Solution: Modify provided Sidekiq init script, to make it run bundle exec as ‘deploy’ user.
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AS_USER = "your_user"
START_CMD = "$BUNDLE exec $SIDEKIQ -e $APP_ENV -P $PID_FILE"
CMD = "cd ${APP_DIR}; ${START_CMD} >> ${LOG_FILE} 2>&1 &"
# $START_CMD >> $LOG_FILE 2>&1 & #replaced this
su -c "$CMD" - $AS_USER # with this
To make it run at startup, use chkconfig to add this as new service. Moreover, you need to verify
header of your script, make sure it is fired after redis-server.
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chkconfig --add name_of_new_service
Init Script after modified
sidekiq (sidekiq) download 1
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#! /bin/bash
#
# sidekiq Init script for sidekiq
#
# chkconfig: 345 25 75
# description: Starts and stops sidekiq message processor
# Source function library.
# . /etc/rc.d/init.d/functions
# You will need to modify these
APP = "your_app"
AS_USER = "your_user"
APP_DIR = "/home/your_user/${APP}"
APP_CONFIG = "${APP_DIR}/config"
LOG_FILE = "$APP_DIR/log/sidekiq.log"
LOCK_FILE = "$APP_DIR/${APP}-lock"
PID_FILE = "$APP_DIR/${APP}.pid"
GEMFILE = "$APP_DIR/Gemfile"
SIDEKIQ = "sidekiq"
APP_ENV = "production"
BUNDLE = "bundle"
# [ -e /etc/sysconfig/sidekiq-your_app ] && . /etc/sysconfig/sidekiq-your_app
START_CMD = "$BUNDLE exec $SIDEKIQ -e $APP_ENV -P $PID_FILE"
CMD = "cd ${APP_DIR}; ${START_CMD} >> ${LOG_FILE} 2>&1 &"
RETVAL = 0
start() {
status
if [ $? -eq 1 ] ; then
[ ` id -u` == '0' ] || ( echo "$SIDEKIQ runs as root only .." ; exit 5)
[ -d $APP_DIR ] || ( echo "$APP_DIR not found!.. Exiting" ; exit 6)
cd $APP_DIR
echo "Starting $SIDEKIQ message processor .. "
su -c "$CMD" - $AS_USER
RETVAL = $?
#Sleeping for 8 seconds for process to be precisely visible in process table - See status ()
sleep 8
[ $RETVAL -eq 0 ] && touch $LOCK_FILE
return $RETVAL
else
echo "$SIDEKIQ message processor is already running .. "
fi
}
stop() {
echo "Stopping $SIDEKIQ message processor .."
SIG = "INT"
kill -$SIG ` cat $PID_FILE `
RETVAL = $?
[ $RETVAL -eq 0 ] && rm -f $LOCK_FILE
return $RETVAL
}
status() {
ps -ef | grep 'sidekiq [0-9].[0-9].[0-9]' | grep -v grep
return $?
}
restart() {
stop
start
}
reload() {
restart
}
force_reload() {
restart
}
case "$1" in
start)
start
;;
stop)
stop
;;
restart)
;;
reload)
;;
force_reload)
;;
status)
status
if [ $? -eq 0 ] ; then
echo "$SIDEKIQ message processor is running .."
RETVAL = 0
else
echo "$SIDEKIQ message processor is stopped .."
RETVAL = 1
fi
;;
*)
echo "Usage: $0 {start|stop|status}"
exit 0
;;
esac
exit $RETVAL
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