#!/bin/bash
#
# Monitoring check script to list data obtained via
# /etc/cron.d/a2-kvm-virtualizor-backups-check
#  - will alert if the data file is older than 1 day
#

_data_file="/opt/vzbackups/cache/monitoring.data"

_verify() {
  # Default exit code is OK
  exit_code=0
  status_msg="OK - All backups are fine"

  # Read through the file and determine severity
  while IFS= read -r line; do
    case "$line" in
        *" CRIT"*)
          exit_code=2
          status_msg="CRITICAL - Backup issues detected, check ${_data_file}!"
          ;;
        *" disabled"*)
          if [[ $exit_code -lt 1 ]]; then
            exit_code=1
            status_msg="WARNING - Some backups are disabled, check ${_data_file}"
          fi
          ;;
    esac
  done < "${_data_file}"

  echo "${exit_code} kvm_backup_CHECK - ${status_msg}"
  exit ${exit_code}
}

if [ -s "${_data_file}" ]; then
  if /usr/bin/find "${_data_file}" -mtime +1 | grep -q data; then
    echo "kvm_backup_CHECK - CRIT - data file is too old, please check"
    cat "${_data_file}"
    exit 2
  else
    echo "0 kvm_backup_CHECK - OK - data file is OK"
    _verify
  fi
else
  echo "kvm_backup_CHECK - CRIT - data file is empty, please check"
  exit 2
fi