Node_Exporter/text_collector_examples/apt.sh
Filippo Giunchedi af4cf20b46 apt.sh: handle multiple origins in apt-get output (#757)
It might happen that a given upgrade comes from multiple origins, in
which case the origins are separated by ", " and thus breaking
whitespace-based split. For example:

Inst package [1.2.3] (1.2.4 Debian:8.10/oldstable, Debian-Security:8/oldstable [amd64])

To workaround this case, mangle the apt-get output to remove whitespaces from
the origins list.
2017-12-12 10:45:59 +01:00

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#!/bin/bash
#
# Description: Expose metrics from apt updates.
#
# Author: Ben Kochie <superq@gmail.com>
upgrades="$(/usr/bin/apt-get --just-print upgrade \
| /usr/bin/awk -F'[()]' \
'/^Inst/ { sub("^[^ ]+ ", "", $2); sub("\\[", " ", $2);
sub(" ", "", $2); sub("\\]", "", $2); print $2 }'
| /usr/bin/sort \
| /usr/bin/uniq -c \
| awk '{ gsub(/\\\\/, "\\\\", $2); gsub(/\"/, "\\\"", $2);
gsub(/\[/, "", $3); gsub(/\]/, "", $3);
print "apt_upgrades_pending{origin=\"" $2 "\",arch=\"" $3 "\"} " $1}'
)"
echo '# HELP apt_upgrades_pending Apt package pending updates by origin.'
echo '# TYPE apt_upgrades_pending gauge'
if [[ -n "${upgrades}" ]] ; then
echo "${upgrades}"
else
echo 'apt_upgrades_pending{origin="",arch=""} 0'
fi
echo '# HELP node_reboot_required Node reboot is required for software updates.'
echo '# TYPE node_reboot_required gauge'
if [[ -f '/run/reboot-required' ]] ; then
echo 'node_reboot_required 1'
else
echo 'node_reboot_required 0'
fi