54 lines
1.9 KiB
Bash
Executable file
54 lines
1.9 KiB
Bash
Executable file
#!/bin/sh
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#
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# Send notification in response to a given zevent.
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#
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# This is a generic script than can be symlinked to a file in the
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# enabled-zedlets directory to have a notification sent when a particular
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# class of zevents occurs. The symlink filename must begin with the zevent
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# (sub)class string (e.g., "probe_failure-notify.sh" for the "probe_failure"
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# subclass). Refer to the zed(8) manpage for details.
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#
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# Only one notification per ZED_NOTIFY_INTERVAL_SECS will be sent for a given
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# class/pool combination. This protects against spamming the recipient
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# should multiple events occur together in time for the same pool.
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#
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# Exit codes:
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# 0: notification sent
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# 1: notification failed
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# 2: notification not configured
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# 3: notification suppressed
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[ -f "${ZED_ZEDLET_DIR}/zed.rc" ] && . "${ZED_ZEDLET_DIR}/zed.rc"
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. "${ZED_ZEDLET_DIR}/zed-functions.sh"
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# Rate-limit the notification based in part on the filename.
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#
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rate_limit_tag="${ZEVENT_POOL};${ZEVENT_SUBCLASS};$(basename -- "$0")"
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rate_limit_interval="${ZED_NOTIFY_INTERVAL_SECS}"
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zed_rate_limit "${rate_limit_tag}" "${rate_limit_interval}" || exit 3
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umask 077
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pool_str="${ZEVENT_POOL:+" for ${ZEVENT_POOL}"}"
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host_str=" on $(hostname)"
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note_subject="ZFS ${ZEVENT_SUBCLASS} event${pool_str}${host_str}"
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note_pathname="${TMPDIR:="/tmp"}/$(basename -- "$0").${ZEVENT_EID}.$$"
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{
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echo "ZFS has posted the following event:"
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echo
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echo " eid: ${ZEVENT_EID}"
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echo " class: ${ZEVENT_SUBCLASS}"
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echo " host: $(hostname)"
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echo " time: ${ZEVENT_TIME_STRING}"
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[ -n "${ZEVENT_VDEV_TYPE}" ] && echo " vtype: ${ZEVENT_VDEV_TYPE}"
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[ -n "${ZEVENT_VDEV_PATH}" ] && echo " vpath: ${ZEVENT_VDEV_PATH}"
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[ -n "${ZEVENT_VDEV_GUID}" ] && echo " vguid: ${ZEVENT_VDEV_GUID}"
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[ -n "${ZEVENT_POOL}" ] && [ -x "${ZPOOL}" ] \
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&& "${ZPOOL}" status "${ZEVENT_POOL}"
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} > "${note_pathname}"
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zed_notify "${note_subject}" "${note_pathname}"; rv=$?
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rm -f "${note_pathname}"
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exit "${rv}"
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