cmd/zed/zed.d/scrub_finish-notify.sh

   1 #!/bin/sh
   2 # shellcheck disable=SC2154
   3 #
   4 # Send notification in response to a RESILVER_FINISH or SCRUB_FINISH.
   5 #
   6 # By default, "zpool status" output will only be included for a scrub_finish
   7 # zevent if the pool is not healthy; to always include its output, set
   8 # ZED_NOTIFY_VERBOSE=1.
   9 #
  10 # Exit codes:
  11 #   0: notification sent
  12 #   1: notification failed
  13 #   2: notification not configured
  14 #   3: notification suppressed
  15 #   9: internal error
  16
  17 [ -f "${ZED_ZEDLET_DIR}/zed.rc" ] && . "${ZED_ZEDLET_DIR}/zed.rc"
  18 . "${ZED_ZEDLET_DIR}/zed-functions.sh"
  19
  20 [ -n "${ZEVENT_POOL}" ] || exit 9
  21 [ -n "${ZEVENT_SUBCLASS}" ] || exit 9
  22
  23 if   [ "${ZEVENT_SUBCLASS}" = "resilver_finish" ]; then
  24     action="resilver"
  25 elif [ "${ZEVENT_SUBCLASS}" = "scrub_finish" ]; then
  26     action="scrub"
  27 else
  28     zed_log_err "unsupported event class \"${ZEVENT_SUBCLASS}\""
  29     exit 9
  30 fi
  31
  32 zed_check_cmd "${ZPOOL}" || exit 9
  33
  34 # For scrub, suppress notification if the pool is healthy
  35 # and verbosity is not enabled.
  36 #
  37 if [ "${ZEVENT_SUBCLASS}" = "scrub_finish" ]; then
  38     healthy="$("${ZPOOL}" status -x "${ZEVENT_POOL}" \
  39         | grep "'${ZEVENT_POOL}' is healthy")"
  40     [ -n "${healthy}" ] && [ "${ZED_NOTIFY_VERBOSE}" -eq 0 ] && exit 3
  41 fi
  42
  43 umask 077
  44 note_subject="ZFS ${ZEVENT_SUBCLASS} event for ${ZEVENT_POOL} on $(hostname)"
  45 note_pathname="$(mktemp)"
  46 {
  47     echo "ZFS has finished a ${action}:"
  48     echo
  49     echo "   eid: ${ZEVENT_EID}"
  50     echo " class: ${ZEVENT_SUBCLASS}"
  51     echo "  host: $(hostname)"
  52     echo "  time: ${ZEVENT_TIME_STRING}"
  53
  54     "${ZPOOL}" status "${ZEVENT_POOL}"
  55
  56 } > "${note_pathname}"
  57
  58 zed_notify "${note_subject}" "${note_pathname}"; rv=$?
  59 rm -f "${note_pathname}"
  60 exit "${rv}"