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# shellcheck shell=bash
# no need for shebang - this file is loaded from charts.d.plugin
# SPDX-License-Identifier: GPL-3.0-or-later
# netdata
# real-time performance and health monitoring, done right!
# (C) 2016-2017 Costa Tsaousis <costa@tsaousis.gr>
#
# a space separated list of UPS names
# if empty, the list returned by 'upsc -l' will be used
nut_ups=
# how frequently to collect UPS data
nut_update_every=2
# how much time in seconds, to wait for nut to respond
nut_timeout=2
# set this to 1, to enable another chart showing the number
# of UPS clients connected to upsd
nut_clients_chart=0
# the priority of nut related to other charts
nut_priority=90000
declare -A nut_ids=()
declare -A nut_names=()
nut_get_all() {
run -t $nut_timeout upsc -l
}
nut_get() {
run -t $nut_timeout upsc "$1"
if [ "${nut_clients_chart}" -eq "1" ]; then
printf "ups.connected_clients: "
run -t $nut_timeout upsc -c "$1" | wc -l
fi
}
nut_check() {
# this should return:
# - 0 to enable the chart
# - 1 to disable the chart
local x
require_cmd upsc || return 1
[ -z "$nut_ups" ] && nut_ups="$(nut_get_all)"
for x in $nut_ups; do
nut_get "$x" > /dev/null
# shellcheck disable=SC2181
if [ $? -eq 0 ]; then
if [ -n "${nut_names[${x}]}" ]; then
nut_ids[$x]="$(fixid "${nut_names[${x}]}")"
else
nut_ids[$x]="$(fixid "$x")"
fi
continue
fi
error "cannot get information for NUT UPS '$x'."
done
if [ ${#nut_ids[@]} -eq 0 ]; then
# shellcheck disable=SC2154
error "Cannot find UPSes - please set nut_ups='ups_name' in $confd/nut.conf"
return 1
fi
return 0
}
nut_create() {
# create the charts
local x
for x in "${nut_ids[@]}"; do
cat << EOF
CHART nut_$x.charge '' "UPS Charge" "percentage" ups nut.charge area $((nut_priority + 1)) $nut_update_every
DIMENSION battery_charge charge absolute 1 100
CHART nut_$x.runtime '' "UPS Runtime" "seconds" ups nut.runtime area $((nut_priority + 2)) $nut_update_every
DIMENSION battery_runtime runtime absolute 1 100
CHART nut_$x.battery_voltage '' "UPS Battery Voltage" "Volts" ups nut.battery.voltage line $((nut_priority + 3)) $nut_update_every
DIMENSION battery_voltage voltage absolute 1 100
DIMENSION battery_voltage_high high absolute 1 100
DIMENSION battery_voltage_low low absolute 1 100
DIMENSION battery_voltage_nominal nominal absolute 1 100
CHART nut_$x.input_voltage '' "UPS Input Voltage" "Volts" input nut.input.voltage line $((nut_priority + 4)) $nut_update_every
DIMENSION input_voltage voltage absolute 1 100
DIMENSION input_voltage_fault fault absolute 1 100
DIMENSION input_voltage_nominal nominal absolute 1 100
CHART nut_$x.input_current '' "UPS Input Current" "Ampere" input nut.input.current line $((nut_priority + 5)) $nut_update_every
DIMENSION input_current_nominal nominal absolute 1 100
CHART nut_$x.input_frequency '' "UPS Input Frequency" "Hz" input nut.input.frequency line $((nut_priority + 6)) $nut_update_every
DIMENSION input_frequency frequency absolute 1 100
DIMENSION input_frequency_nominal nominal absolute 1 100
CHART nut_$x.output_voltage '' "UPS Output Voltage" "Volts" output nut.output.voltage line $((nut_priority + 7)) $nut_update_every
DIMENSION output_voltage voltage absolute 1 100
CHART nut_$x.load '' "UPS Load" "percentage" ups nut.load area $((nut_priority)) $nut_update_every
DIMENSION load load absolute 1 100
CHART nut_$x.temp '' "UPS Temperature" "temperature" ups nut.temperature line $((nut_priority + 8)) $nut_update_every
DIMENSION temp temp absolute 1 100
EOF
if [ "${nut_clients_chart}" = "1" ]; then
cat << EOF2
CHART nut_$x.clients '' "UPS Connected Clients" "clients" ups nut.clients area $((nut_priority + 9)) $nut_update_every
DIMENSION clients '' absolute 1 1
EOF2
fi
done
return 0
}
nut_update() {
# the first argument to this function is the microseconds since last update
# pass this parameter to the BEGIN statement (see bellow).
# do all the work to collect / calculate the values
# for each dimension
# remember: KEEP IT SIMPLE AND SHORT
local i x
for i in "${!nut_ids[@]}"; do
x="${nut_ids[$i]}"
nut_get "$i" | awk "
BEGIN {
battery_charge = 0;
battery_runtime = 0;
battery_voltage = 0;
battery_voltage_high = 0;
battery_voltage_low = 0;
battery_voltage_nominal = 0;
input_voltage = 0;
input_voltage_fault = 0;
input_voltage_nominal = 0;
input_current_nominal = 0;
input_frequency = 0;
input_frequency_nominal = 0;
output_voltage = 0;
load = 0;
temp = 0;
client = 0;
do_clients = ${nut_clients_chart};
}
/^battery.charge: .*/ { battery_charge = \$2 * 100 };
/^battery.runtime: .*/ { battery_runtime = \$2 * 100 };
/^battery.voltage: .*/ { battery_voltage = \$2 * 100 };
/^battery.voltage.high: .*/ { battery_voltage_high = \$2 * 100 };
/^battery.voltage.low: .*/ { battery_voltage_low = \$2 * 100 };
/^battery.voltage.nominal: .*/ { battery_voltage_nominal = \$2 * 100 };
/^input.voltage: .*/ { input_voltage = \$2 * 100 };
/^input.voltage.fault: .*/ { input_voltage_fault = \$2 * 100 };
/^input.voltage.nominal: .*/ { input_voltage_nominal = \$2 * 100 };
/^input.current.nominal: .*/ { input_current_nominal = \$2 * 100 };
/^input.frequency: .*/ { input_frequency = \$2 * 100 };
/^input.frequency.nominal: .*/ { input_frequency_nominal = \$2 * 100 };
/^output.voltage: .*/ { output_voltage = \$2 * 100 };
/^ups.load: .*/ { load = \$2 * 100 };
/^ups.temperature: .*/ { temp = \$2 * 100 };
/^ups.connected_clients: .*/ { clients = \$2 };
END {
print \"BEGIN nut_$x.charge $1\";
print \"SET battery_charge = \" battery_charge;
print \"END\"
print \"BEGIN nut_$x.runtime $1\";
print \"SET battery_runtime = \" battery_runtime;
print \"END\"
print \"BEGIN nut_$x.battery_voltage $1\";
print \"SET battery_voltage = \" battery_voltage;
print \"SET battery_voltage_high = \" battery_voltage_high;
print \"SET battery_voltage_low = \" battery_voltage_low;
print \"SET battery_voltage_nominal = \" battery_voltage_nominal;
print \"END\"
print \"BEGIN nut_$x.input_voltage $1\";
print \"SET input_voltage = \" input_voltage;
print \"SET input_voltage_fault = \" input_voltage_fault;
print \"SET input_voltage_nominal = \" input_voltage_nominal;
print \"END\"
print \"BEGIN nut_$x.input_current $1\";
print \"SET input_current_nominal = \" input_current_nominal;
print \"END\"
print \"BEGIN nut_$x.input_frequency $1\";
print \"SET input_frequency = \" input_frequency;
print \"SET input_frequency_nominal = \" input_frequency_nominal;
print \"END\"
print \"BEGIN nut_$x.output_voltage $1\";
print \"SET output_voltage = \" output_voltage;
print \"END\"
print \"BEGIN nut_$x.load $1\";
print \"SET load = \" load;
print \"END\"
print \"BEGIN nut_$x.temp $1\";
print \"SET temp = \" temp;
print \"END\"
if(do_clients) {
print \"BEGIN nut_$x.clients $1\";
print \"SET clients = \" clients;
print \"END\"
}
}"
# shellcheck disable=2181
[ $? -ne 0 ] && unset "nut_ids[$i]" && error "failed to get values for '$i', disabling it."
done
[ ${#nut_ids[@]} -eq 0 ] && error "no UPSes left active." && return 1
return 0
}
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