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#!/usr/bin/env bash
#
# nagios-clear(1) -- Shortcut to removing all active downtime and
# acknowledgements from a host.
#
self=nagios-clear
# Usage printing function
usage() {
printf 'USAGE: %s [<host[/service][,host[/service],...>|-] [comment]\n' "$self"
}
# Process options (just help at the moment)
OPTIND=1
while getopts 'h' opt ; do
case "$opt" in
h)
usage
exit 0
;;
'?')
usage >&2
exit 1
;;
esac
done
shift "$((OPTIND-1))"
# Bail if too few arguments left; we need at least an object name; the comma is
# optional
if ! (($#)) ; then
usage >&2
exit 1
fi
# Define relatively fixed/guaranteed fields for Nagios command
now=$(date +%s)
spec=$1
cmdfile=${NAGCMD_FILE:-/usr/local/nagios/var/rw/nagios.cmd}
# Define the path to the Livestatus socket
socket=${MK_LIVESTATUS_SOCKET:-/usr/local/nagios/var/rw/live}
# How to get the objects depends on the spec (the first argument)
declare -a objects
case $spec in
# If the spec is just "-", we just read unique objects from stdin
-)
while read -r object ; do
[[ $object ]] || continue
objects[${#objects[@]}]=$object
done < <(sort -u)
;;
# If the spec is anything else, we break it up with commas and read the
# objects that way
*)
IFS=, read -a objects -r < <(printf '%s\n' "$spec")
;;
esac
# There must be at least one object
if ! ((${#objects[@]})) ; then
printf '%s: At least one host/service must be given\n' \
"$self" >&2
exit 1
fi
# All the hosts or services must exist, just to be strict
for object in "${objects[@]}" ; do
nagios-exists "$object" && continue
printf '%s: Host/service %s does not seem to exist\n' \
"$self" "$object" >&2
exit 1
done
# Write commands to remove acknowledgements for each of the objects
for object in "${objects[@]}" ; do
case $object in
*/*)
host=${object%/*}
service=${object##*/}
printf '[%lu] REMOVE_SVC_ACKNOWLEDGEMENT;%s;%s\n' \
"$now" "$host" "$service"
unixcat "$socket" <<EOF |
GET downtimes
Columns: id
Filter: host_name = $host
Filter: service_description = $service
EOF
while read -r id ; do
printf '[%lu] DEL_SVC_DOWNTIME;%u\n' \
"$now" "$id"
done
;;
*)
host=$object
printf '[%lu] REMOVE_HOST_ACKNOWLEDGEMENT;%s\n' \
"$now" "$host"
unixcat "$socket" <<EOF |
GET downtimes
Columns: id
Filter: host_name = $host
Filter: service_description = ''
EOF
while read -r id ; do
printf '[%lu] DEL_HOST_DOWNTIME;%u\n' \
"$now" "$id"
done
;;
esac
done > "$cmdfile"
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