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-rwxr-xr-xcharts.d/nut.chart.sh187
1 files changed, 187 insertions, 0 deletions
diff --git a/charts.d/nut.chart.sh b/charts.d/nut.chart.sh
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+#!/bin/bash
+
+# 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
+
+nut_timeout=2
+
+# the priority of nut related to other charts
+nut_priority=90000
+
+declare -A nut_ids=()
+
+nut_get_all() {
+ timeout $nut_timeout upsc -l
+}
+
+nut_get() {
+ timeout $nut_timeout upsc "$1"
+}
+
+nut_check() {
+
+ # this should return:
+ # - 0 to enable the chart
+ # - 1 to disable the chart
+
+ local x
+
+ require_cmd upsc || return 1
+
+ [ -z "$nut_ups" ] && nut_ups="$( nut_get_all )"
+
+ for x in $nut_ups
+ do
+ nut_get "$x" >/dev/null
+ if [ $? -eq 0 ]
+ then
+ nut_ids[$x]="$( fixid "$x" )"
+ continue
+ fi
+ echo >&2 "nut: ERROR: Cannot get information for NUT UPS '$x'."
+ done
+
+ if [ ${#nut_ids[@]} -eq 0 ]
+ then
+ echo >&2 "nut: 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.battery_voltage '' "UPS Battery Voltage" "Volts" ups nut.battery.voltage line $[nut_priority + 2] $nut_update_every
+DIMENSION battery_voltage voltage absolute 1 100
+DIMENSION battery_voltage_high high absolute 1 100
+DIMENSION battery_voltage_low low absolute 1 100
+DIMENSION battery_voltage_nominal nominal absolute 1 100
+
+CHART nut_$x.input_voltage '' "UPS Input Voltage" "Volts" input nut.input.voltage line $[nut_priority + 3] $nut_update_every
+DIMENSION input_voltage voltage absolute 1 100
+DIMENSION input_voltage_fault fault absolute 1 100
+DIMENSION input_voltage_nominal nominal absolute 1 100
+
+CHART nut_$x.input_current '' "UPS Input Current" "Ampere" input nut.input.current line $[nut_priority + 4] $nut_update_every
+DIMENSION input_current_nominal nominal absolute 1 100
+
+CHART nut_$x.input_frequency '' "UPS Input Frequency" "Hz" input nut.input.frequency line $[nut_priority + 5] $nut_update_every
+DIMENSION input_frequency frequency absolute 1 100
+DIMENSION input_frequency_nominal nominal absolute 1 100
+
+CHART nut_$x.output_voltage '' "UPS Output Voltage" "Volts" output nut.output.voltage line $[nut_priority + 6] $nut_update_every
+DIMENSION output_voltage voltage absolute 1 100
+
+CHART nut_$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 + 7] $nut_update_every
+DIMENSION temp temp absolute 1 100
+EOF
+ done
+
+ return 0
+}
+
+
+nut_update() {
+ # the first argument to this function is the microseconds since last update
+ # pass this parameter to the BEGIN statement (see bellow).
+
+ # do all the work to collect / calculate the values
+ # for each dimension
+ # remember: KEEP IT SIMPLE AND SHORT
+
+ local i x
+ for i in "${!nut_ids[@]}"
+ do
+ x="${nut_ids[$i]}"
+ nut_get "$i" | awk "
+BEGIN {
+ battery_charge = 0;
+ battery_voltage = 0;
+ battery_voltage_high = 0;
+ battery_voltage_low = 0;
+ battery_voltage_nominal = 0;
+ input_voltage = 0;
+ input_voltage_fault = 0;
+ input_voltage_nominal = 0;
+ input_current_nominal = 0;
+ input_frequency = 0;
+ input_frequency_nominal = 0;
+ output_voltage = 0;
+ load = 0;
+ temp = 0;
+}
+/^battery.charge: .*/ { battery_charge = \$2 * 100 };
+/^battery.voltage: .*/ { battery_voltage = \$2 * 100 };
+/^battery.voltage.high: .*/ { battery_voltage_high = \$2 * 100 };
+/^battery.voltage.low: .*/ { battery_voltage_low = \$2 * 100 };
+/^battery.voltage.nominal: .*/ { battery_voltage_nominal = \$2 * 100 };
+/^input.voltage: .*/ { input_voltage = \$2 * 100 };
+/^input.voltage.fault: .*/ { input_voltage_fault = \$2 * 100 };
+/^input.voltage.nominal: .*/ { input_voltage_nominal = \$2 * 100 };
+/^input.current.nominal: .*/ { input_current_nominal = \$2 * 100 };
+/^input.frequency: .*/ { input_frequency = \$2 * 100 };
+/^input.frequency.nominal: .*/ { input_frequency_nominal = \$2 * 100 };
+/^output.voltage: .*/ { output_voltage = \$2 * 100 };
+/^ups.load: .*/ { load = \$2 * 100 };
+/^ups.temperature: .*/ { temp = \$2 * 100 };
+END {
+ print \"BEGIN nut_$x.charge $1\";
+ print \"SET battery_charge = \" battery_charge;
+ print \"END\"
+
+ print \"BEGIN nut_$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\"
+}"
+ [ $? -ne 0 ] && unset nut_ids[$i] && echo >&2 "nut: failed to get values for '$i', disabling it."
+ done
+
+ [ ${#nut_ids[@]} -eq 0 ] && echo >&2 "nut: no UPSes left active." && return 1
+ return 0
+}