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authormh <mh@immerda.ch>2012-09-12 13:04:33 +0200
committermh <mh@immerda.ch>2012-09-12 13:05:19 +0200
commit405cd4fcc4639e4c9f204bcebf852aeaf6a1b129 (patch)
treeb8be1c1b051c07c53738a42ebec460052cf291aa /files
parenta3e8f8ed1861d0a253b1605557e195f2530c2ae8 (diff)
add kvm plugins
Diffstat (limited to 'files')
-rw-r--r--files/plugins/kvm_cpu101
-rw-r--r--files/plugins/kvm_io110
-rw-r--r--files/plugins/kvm_mem107
-rw-r--r--files/plugins/kvm_net143
4 files changed, 461 insertions, 0 deletions
diff --git a/files/plugins/kvm_cpu b/files/plugins/kvm_cpu
new file mode 100644
index 0000000..f48d9f0
--- /dev/null
+++ b/files/plugins/kvm_cpu
@@ -0,0 +1,101 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+# vim: set fileencoding=utf-8
+#
+# Munin plugin to show CPU used 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
+ '''
+ percent = len(filter(lambda x: x[0:3] == 'cpu' and x[3] != ' ', open('/proc/stat', 'r').readlines())) * 100
+
+ base_config = """graph_title KVM Virtual Machine CPU usage
+graph_vlabel %%
+graph_category KVM
+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
+ draw = "AREA"
+ 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 %s" % (vm, draw)
+ print "%s_cpu.info percent of cpu time used by virtual machine" % vm
+ draw = "STACK"
+
+
+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)
+
+ 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 dictionnary 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"^.*-name\x00([a-zA-Z0-9.-]*)\x00\-.*$",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 kvm", shell=True, stdout=PIPE)
+ return pid.communicate()[0].split()
+
+def fetch(vms):
+ ''' Fetch values for a list of pids
+ @param dictionnary {kvm_pid: cleaned vm name}
+ '''
+ for ( pid, name ) in vms.iteritems():
+ ( 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()))
diff --git a/files/plugins/kvm_io b/files/plugins/kvm_io
new file mode 100644
index 0000000..602b2ca
--- /dev/null
+++ b/files/plugins/kvm_io
@@ -0,0 +1,110 @@
+#!/usr/bin/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 KVM
+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.draw LINE1" % vm
+ print "%s_read.info I/O used by virtual machine %s" % (vm, vm)
+ print "%s_write.label %s" % (vm, vm)
+ print "%s_write.type COUNTER" % vm
+ print "%s_write.min 0" % vm
+ print "%s_write.draw LINE1" % 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)
+
+ return re.sub(r"[^a-zA-Z0-9_]", "_", vm_name)
+
+def fetch(vms):
+ ''' Fetch values for a list of pids
+ @param dictionnary {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 dictionnary 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"^.*-name\x00([a-zA-Z0-9.-]*)\x00\-.*$",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 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()))
diff --git a/files/plugins/kvm_mem b/files/plugins/kvm_mem
new file mode 100644
index 0000000..c64d8ce
--- /dev/null
+++ b/files/plugins/kvm_mem
@@ -0,0 +1,107 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+# vim: set fileencoding=utf-8
+#
+# Munin plugin to show amount of memory used by vm
+#
+# Copyright Maxence Dunnewind, Rodolphe Quiédeville, Adrien Pujol
+#
+# 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 Memory usage
+graph_vlabel Bytes
+graph_category KVM
+graph_info This graph shows the current amount of memory used by virtual machines
+graph_args --base 1024
+ """
+ print base_config
+ draw = "AREA"
+ for vm in vm_names:
+ print "%s_mem.label %s" % (vm, vm)
+ print "%s_mem.type GAUGE" % vm
+ if draw == 'AREA':
+ print "%s_mem.min 0" % vm
+ print "%s_mem.draw %s" % (vm, draw)
+ print "%s_mem.info memory used by virtual machine %s" % (vm, vm)
+ draw = "STACK"
+
+
+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)
+
+ return re.sub(r"[^a-zA-Z0-9_]", "_", vm_name)
+
+def fetch(vms):
+ ''' Fetch values for a list of pids
+ @param dictionnary {kvm_pid: cleaned vm name}
+ '''
+ res = {}
+ for pid in vms:
+ try:
+ cmdline = open("/proc/%s/cmdline" % pid, "r")
+ amount = re.sub(r"^.*-m\x00(.*)\x00-smp.*$",r"\1", cmdline.readline())
+ ammount = int(amount) * 1024 * 1024
+ print "%s_mem.value %s" % (vms[pid], ammount)
+ except:
+ cmdline = open("/proc/%s/cmdline" % pid, "r")
+ amount = re.sub(r"^.*-m\x00(\d+).*$",r"\1", cmdline.readline())
+ ammount = int(amount) * 1024 * 1024
+ print "%s_mem.value %s" % (vms[pid], ammount)
+
+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 dictionnary 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"^.*-name\x00([a-zA-Z0-9.-]*)\x00\-.*$",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 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()))
diff --git a/files/plugins/kvm_net b/files/plugins/kvm_net
new file mode 100644
index 0000000..6da0d90
--- /dev/null
+++ b/files/plugins/kvm_net
@@ -0,0 +1,143 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+# vim: set fileencoding=utf-8
+#
+# Munin plugin to show the network I/O per vm
+# On redhat based systems
+#
+# Copyright Igor Borodikhin
+# Copyright Peter Meier
+#
+# 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 Network I/O
+graph_vlabel Bytes rx(-)/tx(+) per second
+graph_category KVM
+graph_info This graph shows the network I/O of the virtual machines
+graph_args --base 1024
+ """
+ print base_config
+ for vm in vm_names:
+ print "%s_in.label %s" % (vm, vm)
+ print "%s_in.type COUNTER" % vm
+ print "%s_in.min 0" % vm
+ print "%s_in.draw LINE2" % vm
+ print "%s_out.negative %s_in" % (vm, vm)
+ print "%s_out.label %s" % (vm, vm)
+ print "%s_out.type COUNTER" % vm
+ print "%s_out.min 0" % vm
+ print "%s_out.draw LINE2" % 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)
+
+ return re.sub(r"[^a-zA-Z0-9_]", "_", vm_name)
+
+def fetch(vms):
+ ''' Fetch values for a list of pids
+ @param dictionnary {kvm_pid: cleaned vm name}
+ '''
+ res = {}
+ macs_to_inf = find_macs_to_inf()
+ interfaces = {}
+ for e in Popen('cat /proc/net/dev | awk \'{ print $1 ":" $9 }\'', shell=True, stdout=PIPE).communicate()[0].split('\n'):
+ s = e.split(':')
+ if len(s) == 3:
+ interfaces[s[0]] = (s[1],s[2])
+ for pid in vms:
+ macs = get_vm_macs(pid)
+ for mac in macs:
+ inf = macs_to_inf[mac]
+ values = interfaces[inf]
+ if len(values) == 2:
+ print "%s_%s_in.value %s" % (vms[pid], inf, values[0])
+ print "%s_%s_out.value %s" % (vms[pid], inf, values[1])
+
+def detect_kvm():
+ ''' Check if kvm is installed
+ '''
+ kvm = Popen("which kvm", shell=True, stdout=PIPE)
+ kvm.communicate()
+ return not bool(kvm.returncode)
+
+def find_vm_names(pids):
+ '''Find and clean vm names from pids
+ @return a dictionnary of {pids : cleaned vm name}
+ '''
+ result = {}
+ for pid in pids:
+ cmdline = open("/proc/%s/cmdline" % pid, "r")
+ result[pid] = clean_vm_name(re.sub(r"^.*-name\x00([a-zA-Z0-9.-]*)\x00\-.*$",r"\1", cmdline.readline()))
+ return result
+
+def get_vm_macs(pid):
+ '''Find macs for a pid
+ @return the mac addresses for a specified pid
+ '''
+ cmdline = open("/proc/%s/cmdline" % pid, "r")
+ line = cmdline.readline()
+ # macs are fe:... on the host
+ macs = [ re.sub(r"^\d{2}",'fe',p.split('=')[1]) for p in line.split(",") if re.match(r"^mac(addr)?=",p) ]
+ return macs
+
+def list_pids():
+ ''' Find the pid of kvm processes
+ @return a list of pids from running kvm
+ '''
+ pid = Popen("pidof qemu-kvm kvm", shell=True, stdout=PIPE)
+ return pid.communicate()[0].split()
+
+def find_macs_to_inf():
+ ''' Find interfaces for vms
+ @return a dictionary of macs to inf
+ '''
+ result = {}
+ inf = ""
+ kvm = Popen("ip a | grep -E -A 1 '(tap|vnet)' | awk '{print $2}' | grep -v '^$'", shell=True, stdout=PIPE)
+ res = kvm.communicate()[0].split('\n')
+ for line in res:
+ if len(line) > 0:
+ if re.match(r"^tap.*", line):
+ inf = re.sub(r"(tap[^:]+):", r"\1", line)
+ elif re.match(r"^vnet.*", line):
+ inf = re.sub(r"(vnet[^:]+):", r"\1", line)
+ else:
+ result[line] = inf
+
+ return result
+
+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()))
+