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This commit is contained in:
Michael Grote 2021-06-16 13:17:24 +02:00
parent 23b9aaf59b
commit 9d04ea2b30
3 changed files with 1 additions and 251 deletions
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2
docker_cpu
View file

@ -38,7 +38,7 @@ GPLv3
=cut
my $docker=`which docker`;
my $docker=`sudo /usr/bin/docker`;
if ( defined $ARGV[0] and $ARGV[0] eq "autoconf" ) {
if ($docker) {

135
kvm_cpu
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@ -1,135 +0,0 @@
#!/usr/bin/env python3
"""
=encoding utf8
=head1 NAME
kvm_cpu - show CPU usage of VM
=head1 CONFIGURATION
Parsed environment variables:
vmsuffix: part of VM name to be removed
=head1 LICENSE
GPLv3
SPDX-License-Identifier: GPL-3.0-only
=head1 AUTHORS
Maxence Dunnewind
Rodolphe Quiédeville
=head1 MAGIC MARKERS
#%# capabilities=autoconf
#%# family=contrib
=cut
"""
import os
import re
import sys
from subprocess import Popen, PIPE
def config(vm_names):
''' Print the plugin's config
@param vm_names : a list of "cleaned" vms' name
'''
percent = 100 * len(
filter(lambda x: x[0:3] == 'cpu' and x[3] != ' ', open('/proc/stat', 'r').readlines()))
base_config = """graph_title KVM Virtual Machine CPU usage
graph_vlabel %%
graph_category virtualization
graph_scale no
graph_period second
graph_info This graph shows the current CPU used by virtual machines
graph_args --base 1000 -r --lower-limit 0 --upper-limit %d""" % percent
print(base_config)
for vm in vm_names:
print("%s_cpu.label %s" % (vm, vm))
print("%s_cpu.min 0" % vm)
print("%s_cpu.type DERIVE" % vm)
print("%s_cpu.draw AREASTACK" % vm)
print("%s_cpu.info percent of cpu time used by virtual machine" % vm)
def clean_vm_name(vm_name):
''' Replace all special chars
@param vm_name : a vm's name
@return cleaned vm's name
'''
# suffix part defined in conf
suffix = os.getenv('vmsuffix')
if suffix:
vm_name = re.sub(suffix, '', vm_name)
# proxmox uses kvm with -name parameter
parts = vm_name.split('\x00')
if parts[0].endswith('kvm'):
try:
return parts[parts.index('-name') + 1]
except ValueError:
pass
return re.sub(r"[^a-zA-Z0-9_]", "_", vm_name)
def detect_kvm():
''' Check if kvm is installed '''
kvm = Popen("which kvm", shell=True, stdout=PIPE)
kvm.communicate()
return not bool(kvm.returncode)
def find_vm_names(pids):
'''Find and clean vm names from pids
@return a dictionary of {pids : cleaned vm name}
'''
result = {}
for pid in pids:
cmdline = open("/proc/%s/cmdline" % pid, "r")
result[pid] = clean_vm_name(
re.sub(r"^.*guest=([a-zA-Z0-9.-_-]*).*$", r"\1", cmdline.readline()))
return result
def list_pids():
''' Find the pid of kvm processes
@return a list of pids from running kvm
'''
pid = Popen("pidof qemu-kvm qemu-system-x86_64 kvm", shell=True, stdout=PIPE)
return pid.communicate()[0].split()
def fetch(vms):
''' Fetch values for a list of pids
@param dictionary {kvm_pid: cleaned vm name}
'''
for pid, name in vms.items():
user, system = open("/proc/%s/stat" % pid, 'r').readline().split(' ')[13:15]
print('%s_cpu.value %d' % (name, int(user) + int(system)))
if __name__ == "__main__":
if len(sys.argv) > 1:
if sys.argv[1] in ['autoconf', 'detect']:
if detect_kvm():
print("yes")
else:
print("no")
elif sys.argv[1] == "config":
config(find_vm_names(list_pids()).values())
else:
fetch(find_vm_names(list_pids()))
else:
fetch(find_vm_names(list_pids()))

115
kvm_io
View file

@ -1,115 +0,0 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# vim: set fileencoding=utf-8
#
# Munin plugin to show io by vm
#
# Copyright Maxence Dunnewind, Rodolphe Quiédeville
#
# License : GPLv3
#
# parsed environment variables:
# vmsuffix: part of vm name to be removed
#
#%# capabilities=autoconf
#%# family=contrib
import re, os, sys
from subprocess import Popen, PIPE
def config(vm_names):
''' Print the plugin's config
@param vm_names : a list of "cleaned" vms' name
'''
base_config = """graph_title KVM Virtual Machine IO usage
graph_vlabel Bytes read(-)/written(+) per second
graph_category virtualization
graph_info This graph shows the block device I/O used of virtual machines
graph_args --base 1024
"""
print base_config
for vm in vm_names:
print "%s_read.label %s" % (vm, vm)
print "%s_read.type COUNTER" % vm
print "%s_read.min 0" % vm
print "%s_read.info I/O used by virtual machine %s" % (vm, vm)
print "%s_read.graph no" % vm
print "%s_write.label %s" % (vm, vm)
print "%s_write.type COUNTER" % vm
print "%s_write.min 0" % vm
print "%s_write.negative %s_read" % (vm, vm)
print "%s_write.info I/O used by virtual machine %s" % (vm, vm)
def clean_vm_name(vm_name):
''' Replace all special chars
@param vm_name : a vm's name
@return cleaned vm's name
'''
# suffix part defined in conf
suffix = os.getenv('vmsuffix')
if suffix:
vm_name = re.sub(suffix,'',vm_name)
# proxmox uses kvm with -name parameter
parts = vm_name.split('\x00')
if (parts[0].endswith('kvm')):
try:
return parts[parts.index('-name')+1]
except ValueError:
pass
return re.sub(r"[^a-zA-Z0-9_]", "_", vm_name)
def fetch(vms):
''' Fetch values for a list of pids
@param dictionary {kvm_pid: cleaned vm name}
'''
res = {}
for pid in vms:
f = open("/proc/%s/io" % pid, "r")
for line in f.readlines():
if "read_bytes" in line:
read = line.split()[1]
print "%s_read.value %s" % (vms[pid], read)
if "write_bytes" in line:
write = line.split()[1]
print "%s_write.value %s" % (vms[pid], write)
break
f.close()
def detect_kvm():
''' Check if kvm is installed
'''
kvm = Popen("which kvm", shell=True, stdout=PIPE)
kvm.communicate()
return not bool(kvm.returncode)
def find_vm_names(pids):
'''Find and clean vm names from pids
@return a dictionary of {pids : cleaned vm name}
'''
result = {}
for pid in pids:
cmdline = open("/proc/%s/cmdline" % pid, "r")
result[pid] = clean_vm_name(re.sub(r"^.*guest=([a-zA-Z0-9.-_-]*).*$",r"\1", cmdline.readline()))
return result
def list_pids():
''' Find the pid of kvm processes
@return a list of pids from running kvm
'''
pid = Popen("pidof qemu-kvm qemu-system-x86_64 kvm", shell=True, stdout=PIPE)
return pid.communicate()[0].split()
if __name__ == "__main__":
if len(sys.argv) > 1:
if sys.argv[1] in ['autoconf', 'detect']:
if detect_kvm():
print "yes"
else:
print "no"
elif sys.argv[1] == "config":
config(find_vm_names(list_pids()).values())
else:
fetch(find_vm_names(list_pids()))
else:
fetch(find_vm_names(list_pids()))