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