mirror of
https://github.com/munin-monitoring/contrib.git
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122 lines
2.6 KiB
Bash
Executable file
122 lines
2.6 KiB
Bash
Executable file
#!/bin/sh
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# -*- sh -*-
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: << =cut
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=head1 NAME
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lxc_ram - Plugin to monitor LXC memory usage.
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=head1 CONFIGURATION
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[lxc_*]
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user root
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[lxc_ram]
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env.areastack true
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=head1 INTERPRETATION
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This plugin needs root privilege.
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If env.areastack is set to true, all memory usages of containers will be
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drawn as stacked area charts.
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This option changes graph order, all of 'Mem usage' comes first and then others.
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(default: false)
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=head1 AUTHOR
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vajtsz vajtsz@gmail.com
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mitty mitty@mitty.jp
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=head1 LICENSE
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Unknown license
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=head1 MAGIC MARKERS
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#%# family=auto
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#%# capabilities=autoconf
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=cut
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# configurable: true/false
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areastack=${areastack:-false}
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# shellcheck disable=SC1090
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. "$MUNIN_LIBDIR/plugins/plugin.sh"
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guest_names=$(lxc-ls | sort -u)
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for guest in $guest_names; do
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if lxc-info -n "$guest" 2>&1 | grep -qs RUNNING ; then
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active="$active $guest"
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fi
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done
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guest_names="$active"
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f_comm='lxc-cgroup '
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do_autoconf() {
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if [ -r /proc/stat ]; then
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echo yes
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else
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echo "no (no /proc/stat)"
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fi
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}
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do_config() {
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echo 'graph_title Memory '
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echo 'graph_args -l 0 --base 1024'
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echo 'graph_vlabel byte'
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echo 'graph_category memory'
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for guest_name in $guest_names; do
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guest="$(clean_fieldname "$guest_name")"
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echo "mem_usage_$guest.label $guest_name: Mem usage"
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echo "mem_usage_$guest.type GAUGE"
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if [ "$areastack" = "true" ]; then
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echo "mem_usage_$guest.draw AREASTACK"
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fi
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echo "mem_cache_$guest.label $guest_name: Cache"
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echo "mem_cache_$guest.type GAUGE"
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echo "mem_active_$guest.label $guest_name: Active"
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echo "mem_active_$guest.type GAUGE"
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echo "mem_inactive_$guest.label $guest_name: Inactive"
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echo "mem_inactive_$guest.type GAUGE"
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done
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}
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do_fetch() {
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for guest_name in $guest_names; do
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guest="$(clean_fieldname "$guest_name")"
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value=$($f_comm -n "$guest_name" memory.usage_in_bytes)
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echo "mem_usage_$guest.value $value"
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value=$($f_comm -n "$guest_name" memory.stat | grep total_cache | awk '{print($2)}')
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echo "mem_cache_$guest.value $value"
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value=$($f_comm -n "$guest_name" memory.stat | grep total_active_anon | awk '{print($2)}')
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echo "mem_active_$guest.value $value"
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value=$($f_comm -n "$guest_name" memory.stat | grep total_inactive_anon | awk '{print($2)}')
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echo "mem_inactive_$guest.value $value"
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done
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}
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if [ "$1" = "autoconf" ]; then
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do_autoconf
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elif [ "$1" = "config" ]; then
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do_config
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if [ "${MUNIN_CAP_DIRTYCONFIG:-0}" = "1" ]; then do_fetch; fi
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else
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do_fetch
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fi
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