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Viewing file:     nut.chart.sh (7.04 KB)      -rwxr-xr-x

# 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
}