kvm_io wieder entfernt, ist im Master mit enthalten
This commit is contained in:
parent
3fdd147d1b
commit
87bdb9c71f
1 changed files with 0 additions and 143 deletions
143
kvm_io
143
kvm_io
|
@ -1,143 +0,0 @@
|
|||
#!/usr/bin/env python3
|
||||
"""
|
||||
=encoding utf8
|
||||
|
||||
=head1 NAME
|
||||
|
||||
kvm_io - show IO 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 re
|
||||
import os
|
||||
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
|
||||
'''
|
||||
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:
|
||||
vm_name = 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}
|
||||
'''
|
||||
for pid in vms:
|
||||
with open("/proc/%s/io" % pid.decode(), "r") as f:
|
||||
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
|
||||
|
||||
|
||||
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:
|
||||
with open("/proc/%s/cmdline" % pid.decode(), "r") as cmdline:
|
||||
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 (detect_kvm failed - is kvm installed?)")
|
||||
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()))
|
Loading…
Add table
Reference in a new issue