README.md

• Yapılandırmalar eski yerinde /etc/unicorn
• unicorn-multi.sh (şimdilik) /etc/unicorn altında (executable olması gerekmiyor
• unicorn-multi betiği /etc/init.d altında
• Bu sistemin çalışması için mevcut unicorn betiğini kaldırmak gerekmiyor ama kaldırılırsa daha güvenli olabilir.

unicorn-multi

#!/bin/sh
### BEGIN INIT INFO
# Provides:          unicorn
# Required-Start:    $local_fs $remote_fs
# Required-Stop:     $local_fs $remote_fs
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: unicorn initscript
# Description:       unicorn
### END INIT INFO

set -e

NAME=unicorn-multi
DESC="Unicorn web server for multiple applications"

. /lib/lsb/init-functions

if [ -f /etc/default/unicorn-multi ]; then
  . /etc/default/unicorn-multi
fi

RUNNER=/etc/unicorn/unicorn-multi.sh
CONFDIR=${CONFDIR-/etc/unicorn/conf.d}

[ -f $RUNNER ] || exit_with_message "Unicorn initializer $RUNNER is not exist."
[ -d $CONFDIR ]   || exit_with_message "Configuration directory $CONFDIR is not exist."

list() {
  local f
  for f in ${CONFDIR}/${1}; do
    [ -f "$f" ] || continue
    echo $f
  done
}

run() {
  sh $RUNNER "$1" "$2" || {
    log_warning_msg "Action $1 failed for configuration $2" || true
    ERR=1
  }
}

ERR=

if [ $# -ge 1 ]; then
  conffiles=$(list ${2-'*'})
  if [ -n "$conffiles" ]; then
    for conf in $conffiles; do
      run "$1" "$conf"
    done
  else
    log_warning_msg "No configuration file found." || true
    ERR=1
  fi
else
  log_action_msg "Usage: $0 <start|stop|restart|force-reload|reload|force-stop|reopen-logs|status> [<conffile>]" || true
  ERR=1
fi

exit $ERR

unicorn-multi.sh

#!/bin/sh

set -e

. /lib/lsb/init-functions

usage() {
  log_action_msg "Usage: $0 <start|stop|restart|force-reload|reload|force-stop|reopen-logs|status> <conffile>" || true
  exit 1
}

[ $# -eq 2 ] || usage
[ -f "$2" ]  || exit_with_message "Configuration file '$2' not found."

ACTION=$1
CONFFILE=$2

APP_NAME=${CONFFILE##*/}

NAME=unicorn
DESC="Unicorn web server for $APP_NAME"

. $CONFFILE

DAEMON=/usr/bin/unicorn_rails
DAEMON_OPTS="-c ${APP_ROOT}/config/unicorn.rb -E ${APP_ENV} -D"
PID=${PID-${APP_ROOT}/tmp/pids/unicorn.pid}

run_by_init() {
    ([ "${previous-}" ] && [ "${runlevel-}" ]) || [ "${runlevel-}" = S ]
}

exit_with_message() {
  if ! run_by_init; then
    log_action_msg "$1 Not starting."
  fi
  exit 0
}

check_app_root() {
  if ! [ -d $APP_ROOT ]; then
    exit_with_message "Application directory $APP_ROOT is not exist."
  fi
}

set -u

case "$ACTION" in
  start)
        check_app_root

        log_daemon_msg "Starting $DESC" $NAME || true
        if start-stop-daemon --start --quiet --oknodo --chdir $APP_ROOT --pidfile $PID --exec $DAEMON -- $DAEMON_OPTS; then
          log_end_msg 0 || true
        else
          log_end_msg 1 || true
        fi
	      ;;
  stop)
        log_daemon_msg "Stopping $DESC" $NAME || true
        if start-stop-daemon --stop --signal QUIT --quiet --oknodo --pidfile $PID; then
          log_end_msg 0 || true
        else
          log_end_msg 1 || true
        fi
        ;;
  force-stop)
        log_daemon_msg "Forcing stop of $DESC" $NAME || true
        if start-stop-daemon --stop --quiet --oknodo --pidfile $PID; then
          log_end_msg 0 || true
        else
          log_end_msg 1 || true
        fi
        ;;
  restart|force-reload)
        log_daemon_msg "Restarting $DESC" $NAME || true
        start-stop-daemon --stop --quiet --oknodo --pidfile $PID
        sleep 1
        if start-stop-daemon --start --quiet --oknodo --chdir $APP_ROOT --pidfile $PID --exec $DAEMON -- $DAEMON_OPTS; then
          log_end_msg 0 || true
        else
          log_end_msg 1 || true
        fi
        ;;
  reload)
        log_daemon_msg "Reloading $DESC" $NAME || true
        if start-stop-daemon --stop --signal HUP --quiet --oknodo --pidfile $PID; then
          log_end_msg 0 || true
        else
          log_end_msg 1 || true
        fi
        ;;
  reopen-logs)
        log_daemon_msg "Relopening log files of $DESC" $NAME || true
        if start-stop-daemon --stop --signal USR1 --quiet --oknodo --pidfile $PID; then
          log_end_msg 0 || true
        else
          log_end_msg 1 || true
        fi
        ;;
  status)
        status_of_proc -p $PID $DAEMON $NAME && exit 0 || exit $?
        ;;
  *)
        usage
        ;;
esac