1#!/bin/sh 2# shellcheck disable=SC2154 3# 4# Send notification in response to a given zevent. 5# 6# This is a generic script than can be symlinked to a file in the 7# enabled-zedlets directory to have a notification sent when a particular 8# class of zevents occurs. The symlink filename must begin with the zevent 9# (sub)class string (e.g., "probe_failure-notify.sh" for the "probe_failure" 10# subclass). Refer to the zed(8) manpage for details. 11# 12# Only one notification per ZED_NOTIFY_INTERVAL_SECS will be sent for a given 13# class/pool combination. This protects against spamming the recipient 14# should multiple events occur together in time for the same pool. 15# 16# Exit codes: 17# 0: notification sent 18# 1: notification failed 19# 2: notification not configured 20# 3: notification suppressed 21 22[ -f "${ZED_ZEDLET_DIR}/zed.rc" ] && . "${ZED_ZEDLET_DIR}/zed.rc" 23. "${ZED_ZEDLET_DIR}/zed-functions.sh" 24 25# Rate-limit the notification based in part on the filename. 26# 27rate_limit_tag="${ZEVENT_POOL};${ZEVENT_SUBCLASS};${0##*/}" 28rate_limit_interval="${ZED_NOTIFY_INTERVAL_SECS}" 29zed_rate_limit "${rate_limit_tag}" "${rate_limit_interval}" || exit 3 30 31umask 077 32pool_str="${ZEVENT_POOL:+" for ${ZEVENT_POOL}"}" 33host_str=" on $(hostname)" 34note_subject="ZFS ${ZEVENT_SUBCLASS} event${pool_str}${host_str}" 35note_pathname="$(mktemp)" 36{ 37 echo "ZFS has posted the following event:" 38 echo 39 echo " eid: ${ZEVENT_EID}" 40 echo " class: ${ZEVENT_SUBCLASS}" 41 echo " host: $(hostname)" 42 echo " time: ${ZEVENT_TIME_STRING}" 43 44 [ -n "${ZEVENT_VDEV_TYPE}" ] && echo " vtype: ${ZEVENT_VDEV_TYPE}" 45 [ -n "${ZEVENT_VDEV_PATH}" ] && echo " vpath: ${ZEVENT_VDEV_PATH}" 46 [ -n "${ZEVENT_VDEV_GUID}" ] && echo " vguid: ${ZEVENT_VDEV_GUID}" 47 48 [ -n "${ZEVENT_POOL}" ] && [ -x "${ZPOOL}" ] \ 49 && "${ZPOOL}" status "${ZEVENT_POOL}" 50 51} > "${note_pathname}" 52 53zed_notify "${note_subject}" "${note_pathname}"; rv=$? 54rm -f "${note_pathname}" 55exit "${rv}" 56