#!/usr/bin/env bash

# Description : script to check the status of systemd units
# if they failed, try to restart the service once !!

# Author : Seddik Alaoui Ismaili
# Version : 1.0


# Exits code
warning_exit="1"
ok_exit="0"

# Unit list
unit_list=(pagure_ci
pagure_ev
pagure_fast_worker
pagure_loadjson
pagure_logcom
pagure_medium_worker
pagure_milter
pagure_mirror
pagure_slow_worker
pagure_webhook
pagure_worker
pagure_mirror_project_in.timer)

#Element's arrays
failed_array=()
active_array=()

# Check units's status
 echo -e "here the lenght of array : ${#active_array[@]}"
for element in ${unit_list[@]}; do
  status=$(systemctl status ${element} |grep -E "Active:"  | awk '{ print $2 }')
  if [ $status == failed ]; then
    systemctl restart ${element} && active_array+=($element) || failed_array+=($element)
  fi
done

# check the lenght of array and print result/exit code for nagios
if [ ${#failed_array[@]} -ne "0" ]; then
  echo -e "WARNING - Failed systemd units after restart : ${failed_array[@]}"
  exit ${warning_exit}
elif [ ${#failed_array[@]} -eq "0" ]; then
  echo -e "OK - Systemd units are active"
  exit ${ok_exit}
fi