munin-plugins/mikrotik/mt_system

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#!/bin/bash
#%# family=auto
#%# capabilities=autoconf
# Michael Grote
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# Mail: michael.grote ät posteo.de
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# This plugin fetches multiple Values from a mikrotik device.
# tested with a RB750GR3 and CRS309.
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# Dependencies:
# - bc
# - sshpass
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# A User is needed for this plugin to work:
# /user add name=munin group=read password=hallowelt address=<munin-server-ip>
# plugin config:
# [mt_system_<name>]
# user root
# env.ssh_user munin
# env.ssh_password hallowelt
# env.ssh_host 192.168.2.1
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# TODO:
# - [ ] free-hdd-space: 4760.0KiB
# - [ ] total-hdd-space: 16.3MiB
# - [ ] uptime: 1w4d22h29m28s
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# - [ ] linter
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# - [ ] doku für munin mit ==HEAD usw.
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# - [ ] firewall counter
# - [ ] temp sfp+
# - [ ] interface stats
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# setze Variablen mit default-Werten
ssh_user=${ssh_user:-user}
ssh_password=${ssh_password:-password}
ssh_host=${ssh_host:-192.168.2.1}
c=0 # zähler; wird für verschiedene Schleifen benötigt
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# Funktionen
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function get_name {
while read -r line; do
if echo $line | grep 'name:' > /dev/null; then
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name=$(echo $line | grep name: | awk '{ print $2 }')
fi
done <<< "$data"
}
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function get_cpu_count {
while read -r line; do
if echo $line | grep 'cpu-count' > /dev/null; then
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anzahl_cpu=$(echo $line | grep cpu-count: | sed -r 's/(cpu-count: )([0-9]+)/\2/g' | tr -dc '[0-9]')
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fi
done <<< "$data"
}
function check_sshpass {
if [[ $(dpkg -l sshpass > /dev/null 2>&1) -ne "0" ]] ; then
echo "could not find sshpass"
exit 1
fi
}
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function check_bc {
if [[ $(dpkg -l bc > /dev/null 2>&1) -ne "0" ]] ; then
echo "could not find bc"
exit 1
fi
}
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function get_data {
# hole daten per ssh
data=$(sshpass -p $ssh_password ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no $ssh_user@$ssh_host -q ':delay 6s; /system health print; /system resource print; /system resource cpu print; /system identity print')
}
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function get_mem_total {
mem_total=$(
while read -r line; do
echo $line | awk '/total-memory:/{ gsub(/MiB/,"",$2); print $2 }' | tr -dc '[0-9.]'
done <<< "$data")
}
function get_mem_free {
mem_free=$(
while read -r line; do
echo $line | awk '/free-memory:/{ gsub(/MiB/,"",$2); print $2 }' | tr -dc '[0-9.]'
done <<< "$data")
}
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function get_voltage_label {
while read -r line; do # für jede zeile in... ; siehe "done"
# gebe die zeile aus
# suche mit awk nach "voltage:"
# wenn gefunden:
# gebe jede zeile per print text aus
# externe/bash-variablen mit "'"<var>"'"
echo $line | awk '/voltage:/{
print "multigraph voltage_graph_""'"$name"'";
print "graph_title voltage " "'"$name"'";
print "graph_vlabel volt";
print "graph_category mikrotik";
print "graph_args -l 0";
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print "voltage.label voltage";
print "graph_info Input Voltage."
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}'
done <<< "$data" # der variable data
}
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function get_voltage_value {
while read -r line; do
# funktion wie bei den "label"-funktionen
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# gib überschrift aus wenn dirtyconfig nicht gesetzt ist
# weil aufruf dann nicht in "config" erfolgt
# wenn dirtyconfig nicht gesetzt sind, gebe überschrift aus
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if [ "$MUNIN_CAP_DIRTYCONFIG" = "0" ] || [ -z "$MUNIN_CAP_DIRTYCONFIG" ]; then
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echo $line | awk '/voltage:/{
print "multigraph voltage_graph_""'"$name"'";
}'
fi
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# entferne mit gsub das zeichen % in wert $2
# gebe $2 aus
echo $line | awk '/voltage:/{
gsub(/V/,"",$2);
print "voltage.value " $2
}'
done <<< "$data"
}
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function get_bad_blocks_label {
while read -r line; do
echo $line | awk '/bad-blocks:/{
print "multigraph bad_blocks_graph_""'"$name"'";
print "graph_title bad blocks " "'"$name"'";
print "graph_vlabel %";
print "graph_category mikrotik";
print "graph_args -l 0 --upper-limit 100";
print "bad_blocks.label bad_blocks";
print "bad_blocks.warning 2";
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print "bad_blocks.critical 25";
print "graph_info Percentage of Bad Blocks."
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}'
done <<< "$data"
}
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function get_bad_blocks_value {
while read -r line; do
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if [ "$MUNIN_CAP_DIRTYCONFIG" = "0" ] || [ -z "$MUNIN_CAP_DIRTYCONFIG" ]; then
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echo $line | awk '/bad-blocks:/{
print "multigraph bad_blocks_graph_""'"$name"'";
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}'
fi
echo $line | awk '/bad-blocks:/{
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gsub(/%/,"",$2);
print "bad_blocks.value " $2
}'
done <<< "$data"
}
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function get_write_sect_total_label {
while read -r line; do
echo $line | awk '/write-sect-total:/{
print "multigraph write_sect_total_graph_""'"$name"'";
print "graph_title Total sector writes " "'"$name"'";
print "graph_vlabel count";
print "graph_category mikrotik";
print "graph_args -l 0";
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print "write_sect_total.label write_sect_total";
print "graph_info Total sector writes."
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}'
done <<< "$data"
}
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function get_write_sect_total_value {
while read -r line; do
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if [ "$MUNIN_CAP_DIRTYCONFIG" = "0" ] || [ -z "$MUNIN_CAP_DIRTYCONFIG" ]; then
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echo $line | awk '/write-sect-total:/{
print "multigraph write_sect_total_graph_""'"$name"'";
}'
fi
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echo $line | awk '/write-sect-total:/{
print "write_sect_total.value " $2
}'
done <<< "$data"
}
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function get_write_sect_since_reboot_label {
while read -r line; do
echo $line | awk '/write-sect-since-reboot:/{
print "multigraph write_sect_since_reboot_graph_""'"$name"'";
print "graph_title Sector writes since reboot " "'"$name"'";
print "graph_vlabel count";
print "graph_category mikrotik";
print "graph_args -l 0";
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print "write_sect_since_reboot.label write_sect_since_reboot";
print "graph_info Total Sector writes since last reboot."
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}'
done <<< "$data"
}
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function get_write_sect_since_reboot_value {
while read -r line; do
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if [ "$MUNIN_CAP_DIRTYCONFIG" = "0" ] || [ -z "$MUNIN_CAP_DIRTYCONFIG" ]; then
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echo $line | awk '/write-sect-since-reboot:/{
print "multigraph write_sect_since_reboot_graph_""'"$name"'";
}'
fi
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echo $line | awk '/write-sect-since-reboot:/{
print "write_sect_since_reboot.value " $2
}'
done <<< "$data"
}
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function get_temperature_label {
while read -r line; do
echo $line | awk '/temperature:/{
print "multigraph temperature_graph_""'"$name"'";
print "graph_title temperature " "'"$name"'";
print "graph_vlabel °C";
print "graph_category mikrotik";
print "graph_args -l 0";
print "temperature.label cpu temperature";
print "temperature.warning 75";
print "temperature.critical 90"
}'
done <<< "$data"
}
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function get_temperature_value {
while read -r line; do
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if [ "$MUNIN_CAP_DIRTYCONFIG" = "0" ] || [ -z "$MUNIN_CAP_DIRTYCONFIG" ]; then
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echo $line | awk '/temperature:/{
print "multigraph temperature_graph_""'"$name"'";
}'
fi
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echo $line | awk '/temperature:/{
gsub(/C/,"",$2);
print "temperature.value " $2
}'
done <<< "$data"
}
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function get_cpu_label {
echo multigraph cpu_load_graph_$name
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echo graph_title cpu load $name
echo graph_vlabel %
echo graph_category mikrotik
echo graph_args -l 0 --upper-limit 100
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echo cpu_total.label total load
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echo cpu_total.warning 75
echo cpu_total.critical 90
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echo graph_info Total CPU Load and Load, IRQ and Disk per Core.
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while [ "$c" -lt "$anzahl_cpu" ]; do
while read -r line; do
echo $line | grep cpu$c | awk '{
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print "cpu"'"$c"'"_load.label " "cpu" "'"$c"'" " load"
print "cpu"'"$c"'"_irq.label " "cpu" "'"$c"'" " irq"
print "cpu"'"$c"'"_disk.label " "cpu" "'"$c"'" " disk"
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}'
done <<< "$data"
c=$(( $c + 1 ))
done
}
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function get_cpu_value {
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if [ "$MUNIN_CAP_DIRTYCONFIG" = "0" ] || [ -z "$MUNIN_CAP_DIRTYCONFIG" ]; then
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echo multigraph cpu_load_graph_$name
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fi
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while read -r line; do
echo $line | awk '/cpu-load:/{
gsub(/%/,"",$2);
print "cpu_total.value " $2
}'
done <<< "$data"
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c=0
while [ "$c" -lt "$anzahl_cpu" ]; do
while read -r line; do
echo $line | grep cpu$c | awk '{
gsub(/%/,"",$3);
gsub(/%/,"",$4);
gsub(/%/,"",$5);
print "cpu"'"$c"'"_load.value " $3
print "cpu"'"$c"'"_irq.value " $4
print "cpu"'"$c"'"_disk.value " $5
}'
done <<< "$data"
c=$(( $c + 1 ))
done
}
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function get_memory_label {
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get_mem_total
get_mem_free
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while read -r line; do
echo $line | awk '/free-memory:/{
print "multigraph memory_graph_""'"$name"'";
print "graph_title memory " "'"$name"'";
print "graph_vlabel MiB";
print "graph_category mikrotik";
print "graph_args -l 0";
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print "total_memory.label total memory";
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print "used_memory.label used memory";
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print "free_memory.label free memory";
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print "graph_info Total, Used & free RAM.";
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gsub(/MiB/,"",$2);
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print "used_memory.critical " $2*0.9;
print "used_memory.warning " $2*0.7 }'
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done <<< "$data"
}
function get_memory_value {
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get_mem_total
get_mem_free
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if [ "$MUNIN_CAP_DIRTYCONFIG" = "0" ] || [ -z "$MUNIN_CAP_DIRTYCONFIG" ]; then
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echo multigraph memory_$name
fi
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while read -r line; do
echo $line | awk '/total-memory:/{
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gsub(/MiB/,"",$2);
print "total_memory.value " $2
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}'
done <<< "$data"
while read -r line; do
echo $line | awk '/free-memory:/{
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gsub(/MiB/,"",$2);
print "free_memory.value " $2
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}'
done <<< "$data"
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# berechne used-memory
# gesamt + frei = benutzt
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echo used_memory.value $(echo $mem_total-$mem_free| bc)
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}
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#Kibibyte = Mebibyte x (8x1024x1024) / (8x1024)
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# rufe funktionen auf, reihenfolge ist wichtig
check_sshpass
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check_bc
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get_data
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get_name
get_cpu_count
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# munin-Logik
# wenn $1 = X; dann
if [ "$1" = "autoconf" ]; then
echo yes
exit 0
fi
if [ "$1" = "config" ]; then
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# gebe label aus
# wenn dirtyconfig gesetzt rufe value funktion auf
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get_voltage_label
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if [ "$MUNIN_CAP_DIRTYCONFIG" = "1" ]; then
get_voltage_value
fi
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get_bad_blocks_label
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if [ "$MUNIN_CAP_DIRTYCONFIG" = "1" ]; then
get_bad_blocks_value
fi
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get_write_sect_total_label
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if [ "$MUNIN_CAP_DIRTYCONFIG" = "1" ]; then
get_write_sect_total_value
fi
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get_write_sect_since_reboot_label
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if [ "$MUNIN_CAP_DIRTYCONFIG" = "1" ]; then
get_write_sect_since_reboot_value
fi
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get_temperature_label
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if [ "$MUNIN_CAP_DIRTYCONFIG" = "1" ]; then
get_temperature_value
fi
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get_cpu_label
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if [ "$MUNIN_CAP_DIRTYCONFIG" = "1" ]; then
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get_cpu_value
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fi
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get_memory_label
if [ "$MUNIN_CAP_DIRTYCONFIG" = "1" ]; then
get_memory_value
fi
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exit 0
fi
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# wird nie aufgerufen wenn dirtyconfig gesetzt ist
# dann wird nur config aufgerufen und dabei werden zusätzlich die values ausgegeben
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get_voltage_value
get_bad_blocks_value
get_write_sect_total_value
get_write_sect_since_reboot_value
get_temperature_value
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get_cpu_value
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get_memory_value
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exit 0
# Beispieloutput:
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# voltage: 24.5V
# temperature: 46C
# uptime: 1w6d17h12m25s
# version: 6.48.4 (stable)
# build-time: Aug/18/2021 06:43:27
# factory-software: 6.46.3
# free-memory: 209.9MiB
# total-memory: 256.0MiB
# cpu: MIPS 1004Kc V2.15
# cpu-count: 4
# cpu-frequency: 880MHz
# cpu-load: 0%
# free-hdd-space: 4760.0KiB
# total-hdd-space: 16.3MiB
# write-sect-since-reboot: 46412
# write-sect-total: 62012
# bad-blocks: 0%
# architecture-name: mmips
# board-name: hEX
# platform: MikroTik
# # CPU LOAD IRQ DISK
# 0 cpu0 0% 0% 0%
# 1 cpu1 1% 1% 0%
# 2 cpu2 0% 0% 0%
# 3 cpu3 1% 0% 0%
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# name: hEX