1#@!#!123s

: / lib64 / nagios / plugins /
Filename : check_salt_running.sh
back
#!/usr/bin/env bash
set -u

SERVICE_NAME="salt-minion"
STATE_FILE="/opt/.saltrunning"
WARN_AGE=5400
CRIT_AGE=7200

usage() {
  cat <<'USAGE'
Usage: check_salt_running.sh [-s service] [-f state_file] [-w warn_age] [-c crit_age]

Checks that the salt-minion service is active and that the state file has been
updated recently. Defaults are tuned for Icinga/Nagios-style service checks.
USAGE
}

while getopts ":s:f:w:c:h" opt; do
  case "$opt" in
    s) SERVICE_NAME="$OPTARG" ;;
    f) STATE_FILE="$OPTARG" ;;
    w) WARN_AGE="$OPTARG" ;;
    c) CRIT_AGE="$OPTARG" ;;
    h)
      usage
      exit 0
      ;;
    \?)
      echo "UNKNOWN - invalid option: -$OPTARG"
      usage
      exit 3
      ;;
    :)
      echo "UNKNOWN - option -$OPTARG requires an argument"
      usage
      exit 3
      ;;
  esac
done

WARN_AGE_MINUTES=$(( WARN_AGE / 60 ))
CRIT_AGE_MINUTES=$(( CRIT_AGE / 60 ))

if ! command -v systemctl >/dev/null 2>&1; then
  echo "UNKNOWN - systemctl not available"
  exit 3
fi

service_state="$(systemctl is-active "$SERVICE_NAME" 2>/dev/null || true)"
if [[ "$service_state" != "active" ]]; then
  echo "CRITICAL - $SERVICE_NAME is not active (state: ${service_state:-unknown})"
  exit 2
fi

if [[ ! -e "$STATE_FILE" ]]; then
  echo "CRITICAL - $STATE_FILE does not exist"
  exit 2
fi

if ! last_run="$(stat -c '%Y' "$STATE_FILE" 2>/dev/null)"; then
  echo "UNKNOWN - unable to read mtime for $STATE_FILE"
  exit 3
fi

now="$(date +%s)"
age=$(( now - last_run ))
age_minutes=$(( age / 60 ))

if (( age < 0 )); then
  echo "UNKNOWN - $STATE_FILE has a future timestamp"
  exit 3
fi

if (( age >= CRIT_AGE )); then
  echo "CRITICAL - Salt has not updated for ${age_minutes} minutes (threshold ${CRIT_AGE_MINUTES} minutes) | saltrunning_age=${age_minutes}m;${WARN_AGE_MINUTES};${CRIT_AGE_MINUTES};0;"
  exit 2
fi

if (( age >= WARN_AGE )); then
  echo "WARNING - Salt has not updated for ${age_minutes} minutes (threshold ${WARN_AGE_MINUTES} minutes) | saltrunning_age=${age_minutes}m;${WARN_AGE_MINUTES};${CRIT_AGE_MINUTES};0;"
  exit 1
fi

echo "OK - $SERVICE_NAME active, last update ${age_minutes} minutes ago | saltrunning_age=${age_minutes}m;${WARN_AGE_MINUTES};${CRIT_AGE_MINUTES};0;"
exit 0