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#!/bin/sh
#
# Send email to ZED_EMAIL in response to a RESILVER.FINISH or SCRUB.FINISH.
#
# By default, "zpool status" output will only be included for a scrub.finish
# zevent if the pool is not healthy; to always include its output, set
# ZED_EMAIL_VERBOSE=1.
#
# Exit codes:
# 0: email sent
# 1: email failed
# 2: email not configured
# 3: email suppressed
# 9: internal error
[ -f "${ZED_ZEDLET_DIR}/zed.rc" ] && . "${ZED_ZEDLET_DIR}/zed.rc"
. "${ZED_ZEDLET_DIR}/zed-functions.sh"
[ -n "${ZED_EMAIL}" ] || exit 2
[ -n "${ZEVENT_POOL}" ] || exit 9
[ -n "${ZEVENT_SUBCLASS}" ] || exit 9
if [ "${ZEVENT_SUBCLASS}" = "resilver.finish" ]; then
action="resilver"
elif [ "${ZEVENT_SUBCLASS}" = "scrub.finish" ]; then
action="scrub"
else
zed_log_err "unsupported event class \"${ZEVENT_SUBCLASS}\""
exit 9
fi
zed_check_cmd "mail" "${ZPOOL}" || exit 9
# For scrub, suppress email if pool is healthy and verbosity is not enabled.
#
if [ "${ZEVENT_SUBCLASS}" = "scrub.finish" ]; then
healthy="$("${ZPOOL}" status -x "${ZEVENT_POOL}" \
| grep "'${ZEVENT_POOL}' is healthy")"
[ -n "${healthy}" ] && [ "${ZED_EMAIL_VERBOSE}" -eq 0 ] && exit 3
fi
umask 077
email_subject="ZFS ${ZEVENT_SUBCLASS} event for ${ZEVENT_POOL} on $(hostname)"
email_pathname="${TMPDIR:="/tmp"}/$(basename -- "$0").${ZEVENT_EID}.$$"
cat > "${email_pathname}" <<EOF
ZFS has finished a ${action}:
eid: ${ZEVENT_EID}
host: $(hostname)
time: ${ZEVENT_TIME_STRING}
$("${ZPOOL}" status "${ZEVENT_POOL}")
EOF
mail -s "${email_subject}" "${ZED_EMAIL}" < "${email_pathname}"
mail_status=$?
if [ "${mail_status}" -ne 0 ]; then
zed_log_msg "mail exit=${mail_status}"
exit 1
fi
rm -f "${email_pathname}"
exit 0
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