buymeapie_erl

#! /bin/sh
### BEGIN INIT INFO
# Provides:          skeleton
# Required-Start:    $remote_fs $syslog
# Required-Stop:     $remote_fs $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Example initscript
# Description:       This file should be used to construct scripts to be
#                    placed in /etc/init.d.
### END INIT INFO

# Author: Foo Bar <foobar@baz.org>
#
# Please remove the "Author" lines above and replace them
# with your own name if you copy and modify this script.

# Do NOT "set -e"

# PATH should only include /usr/* if it runs after the mountnfs.sh script
PATH=/sbin:/usr/sbin:/opt/bin:/bin:/usr/bin
DESC="Buymeapie erlang server"
NAME=buymeapie_erl
APP_DIR=/srv/buymeapie/current/erl_front/rel/front
PIDFILE=/var/run/$NAME.pid
SCRIPTNAME=/etc/init.d/$NAME


# Read configuration variable file if it is present
[ -r /etc/default/$NAME ] && . /etc/default/$NAME

BIN_DIR=$APP_DIR/bin
DAEMON=$BIN_DIR/front
PID_SOURCE=$APP_DIR/pid.pid

# Exit if the package is not installed
[ -x "$DAEMON" ] ||  exit 3

DAEMON_CMD="sudo -u buymeapie HOME=/tmp $DAEMON"

# Load the VERBOSE setting and other rcS variables
#[ -x /lib/init/vars.sh ] && . /lib/init/vars.sh

#
# Function that starts the daemon/service
#
do_start()
{
  # Return
  #   0 if daemon has been started
  #   1 if daemon was already running
  #   2 if daemon could not be started
  $DAEMON_CMD start || return 1
  sleep 5 && pgrep beam || return 2
  cp $PID_SOURCE $PIDFILE
}

#
# Function that stops the daemon/service
#
do_stop()
{
  # Return
  #   0 if daemon has been stopped
  #   1 if daemon was already stopped
  #   2 if daemon could not be stopped
  #   other if a failure occurred
  $DAEMON_CMD ping > /dev/null || return 1
  $DAEMON_CMD stop 
  RETVAL="$?"
  [ "$RETVAL" = 2 ] && return 2
  rm -f $PIDFILE
  return "$RETVAL"
}

#
# Function that sends a SIGHUP to the daemon/service
#
do_reload() {
  $DAEMON_CMD restart
  return 0
}

log_msg() {
  echo $1
  return 0 
}


log_error() {
  echo "Error on $NAME"
  echo "Service $DESC $2"
  exit $1
}

case "$1" in
  start)
  log_msg "Starting $DESC" "$NAME"
  do_start
  case "$?" in
    0) return 0 ;;
    1) echo "$DESC is already started";return 0 ;;
    2) log_error 1 "failed to start" ;;
  esac
  ;;
  stop)
  log_msg "Stopping $DESC" "$NAME"
  do_stop
  case "$?" in
    0) return 0 ;;
    1) echo  "$DESC is already stopped"; return 0 ;;
    2) log_error 2 "could not be stopped" ;;
  esac
  ;;
  status)
       escript $APP_DIR/show_status.escript
       ;;
  #reload|force-reload)
  #
  # If do_reload() is not implemented then leave this commented out
  # and leave 'force-reload' as an alias for 'restart'.
  #
  #log_msg "Reloading $DESC" "$NAME"
  #do_reload
  #log_end $?
  #;;
  restart|force-reload)
  #
  # If the "reload" option is implemented then remove the
  # 'force-reload' alias
  #
  log_msg "Restarting $DESC" "$NAME"
  do_stop
  case "$?" in
    0|1)
    do_start
    case "$?" in
      0) return 0 ;;
      1) log_error 1 "Old process is still running" ;;
      *) log_error 2 "failed to start" ;;
    esac
    ;;
    *)
      # Failed to stop
    log_error 2 "Failed to stop"
    ;;
  esac
  ;; 
  *)
  #echo "Usage: $SCRIPTNAME {start|stop|restart|reload|force-reload}" >&2
  echo "Usage: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2
  exit 3
  ;;
esac

:

buymeapie_erl_monit

set mail-format {
     from: monit@$HOST
  subject: monit alert -- $HOST: $EVENT $SERVICE
  message: $EVENT Service $SERVICE
                Date:        $DATE
                Action:      $ACTION
                Host:        $HOST
                Description: $DESCRIPTION
           Your faithful employee,
           Monit
}

check process erlang_process with pidfile /run/buymeapie_erl.pid
    start program = "/etc/init.d/buymeapie_erl start" with timeout 60 seconds
    stop program  = "/etc/init.d/buymeapie_erl stop" with timeout 60 seconds
    if cpu > 80% for 2 cycles then alert
    if children > 34 then restart
    #if loadavg(5min) greater than 10 for 8 cycles then stop
    if 3 restarts within 5 cycles then timeout
    group server

check host erl_buymeapie with address 127.0.0.1
    start program = "/etc/init.d/buymeapie_erl start" with timeout 60 seconds
    stop program  = "/etc/init.d/buymeapie_erl stop" with timeout 60 seconds
    if failed url http://zabbix:8989@phpd13.buymeapie.com/bauth within 3 cycles then restart
    #if failed port 8082 within 3 cycles then restart
    if 10 restarts within 15 cycles then timeout
    group server

check file erl_error_log with path /srv/buymeapie/shared/log/error.log
    stop program  = "/etc/init.d/buymeapie_erl stop" with timeout 60 seconds
    if match ".* CRASH REPORT .*" then stop
    #if 3 restarts within 5 cycles then timeout
    group server