Add sidekiq as a service in Ubuntu 20.04

readme.md

STEPS

vim /etc/init.d/sidekiq

Copy and paste the code below and change appropriately Save and exit (ESC + :wq)

sudo update-rc.d sidekiq defaults

sudo service sidekiq start
sudo service sidekiq status

sidekiq

#!/bin/bash
# sidekiq    Init script for Sidekiq
# chkconfig: 345 100 75
#
# Description: Starts and Stops Sidekiq message processor for Stratus application.
#
# User-specified exit parameters used in this script:
#
# Exit Code 5 - Incorrect User ID
# Exit Code 6 - Directory not found


# You will need to modify these
APP="{{ app_name }}"
AS_USER="{{ deploy_user }}"
APP_DIR="{{ app_directory }}"

LOG_FILE="$APP_DIR/log/sidekiq.log"
LOCK_FILE="$APP_DIR/tmp/pids/sidekiq-${APP}-lock"
PID_FILE="$APP_DIR/tmp/pids/sidekiq-${APP}.pid"
SIDEKIQ="sidekiq"
APP_ENV="production"
BUNDLE="bundle"

START_CMD="$BUNDLE exec $SIDEKIQ -e $APP_ENV -P $PID_FILE -C ${APP_DIR}/config/sidekiq.yml"
CMD="cd ${APP_DIR}; ${START_CMD} >> ${LOG_FILE} 2>&1 &"

RETVAL=0


start() {
  status
  if [ $? -eq 1 ]; then
    [ `id -u` == '0' ] || (echo >&2 "$SIDEKIQ runs as root only ..."; exit 5)
    [ -d $APP_DIR ] || (echo >&2 "$APP_DIR not found!... Exiting"; exit 6)
    cd $APP_DIR
    echo >&2 "Starting $SIDEKIQ message processor ..."

    su -c "$CMD" - $AS_USER

    RETVAL=$?
    sleep 8
    [ $RETVAL -eq 0 ] && touch $LOCK_FILE
    return $RETVAL
  else
    echo >&2 "$SIDEKIQ message processor is already running ..."
  fi
}

stop() {
  status
  if [ $? -eq 0 ]; then
    echo >&2 "Stopping sidekiq message processor ..."
    SIG="INT"
    kill -$SIG `cat $PID_FILE`
    RETVAL=$?
    [ $RETVAL -eq 0 ] && rm -f $LOCK_FILE
    return $RETVAL
  else
    echo >&2 "Sidekiq message processor is stopped already ..."
  fi
}

status() {
  ps -ef | grep 'sidekiq [0-9].[0-9].[0-9]' | grep -v grep
  return $?
}

restart() {
  if [ -f $LOCK_FILE ]; then
    stop
  fi
  echo >&2 "Waiting while stopping ..."
  sleep 4
  start
}

case "$1" in
  start)
    start
    ;;
  stop)
    stop
    ;;
  restart)
    restart
    ;;
  status)
    status
    if [ $? -eq 0 ]; then
      echo >&2 "$SIDEKIQ message processor is running ..."
      RETVAL=0
     else
      echo >&2 "$SIDEKIQ message processor is stopped ..."
      RETVAL=1
     fi
    ;;
  *)
    echo >&2 "Usage: $0 {start|stop|restart|status}"
    exit 0
    ;;
esac
exit $RETVAL