class XenInterface():
def __init__(self, host, port):
self.session = Session("http://%s:%d" % (host, port))
self.session.login_with_password('', '')
print "Session: " + str(self.session)
# Retorna uma lista de XenData para cada VM da maquina fisica
def get_data_vms(self):
vm = self.session.xenapi.VM
vm_list = self.session.xenapi.VM.get_all()
print vm_list
vm_list = vm_list[1:]
list_vm_data = []
for vm_ref in vm_list:
vm_metrics = self.session.xenapi.VM.get_metrics(vm_ref)
cpu_carga = self.session.xenapi.VM_metrics.get_VCPUs_utilisation(vm_metrics)
#print "******** cpu carga", cpu_carga
vcpus = self.session.xenapi.VM_metrics.get_VCPUs_CPU(vm_metrics)
# Obtem qual o processador da vcpu0 para fazer normalizacao ao final
vcpu0 = vcpus['0']
vm_instance = XenData(uuid=vm_ref,cpu=round(cpu_carga['0']*100))
vm_instance.vcpu = vcpu0
#vm_instance = XenData(uuid=100,cpu=255)
list_vm_data.append(vm_instance)
# faz normalizacao das cpus
consolidacao_por_cpu = {}
for item in list_vm_data:
print "Antes normalizacao", item.uuid, item.cpu, item.vcpu
if item.vcpu not in consolidacao_por_cpu:
consolidacao_por_cpu[item.vcpu] = { 'sum': 0, 'max' : 0 }
c = consolidacao_por_cpu[item.vcpu]
c['sum'] = c['sum'] + item.cpu
c['max'] = (item.cpu if c['max'] < item.cpu else c['max'])
# normalizando
for item in list_vm_data:
if consolidacao_por_cpu[item.vcpu]['max'] > 0:
item.cpu = round(item.cpu/consolidacao_por_cpu[item.vcpu]['max']*consolidacao_por_cpu[item.vcpu]['sum'])
print "Apos normalizacao", item.uuid, item.cpu, item.vcpu
return list_vm_data
# Migra(LIVE) de uma maquina virtual a partir de seu UUID para uma maquina fisica
# sudo xm migrate 7a2232de-5c5b-ae98-80e1-eeee6e1686fa 192.168.2.20 --live
def migrate_vm_fvm(self,uuid,ip_host):
print "Migrate started: "
vm_migrate_data = self.session.xenapi.VM.migrate(uuid,ip_host,'true',{'':''})
print "Migrate finish: ", vm_migrate_data
def get_api(machine):
global API_CONNECTIONS
if (machine in API_CONNECTIONS):
xenapi = API_CONNECTIONS[machine]
else:
session=Session('http://' + machine + ':9363');
try:
session.login_with_password('','');
xenapi = session.xenapi;
xenapi.VM.get_all_records();
API_CONNECTIONS[machine] = xenapi
except:
xenapi = None;
return xenapi;
#!/usr/bin/python
from xen.xm.XenAPI import Session
session = Session('http://localhost:9363/')
try:
session.login_with_password('', '')
xenapi = session.xenapi
host = xenapi.host.get_all()[0]
hostcpu = xenapi.host_cpu.get_all()[0]
print "CPU_NUM CPU_MODEL"
print xenapi.host_cpu.get_number(hostcpu), xenapi.host_cpu.get_modelname(
hostcpu)
finally:
session.xenapi.session.logout()
#!/usr/bin/python
from xen.xm.XenAPI import Session
session = Session("httpu:///var/run/xend/xen-api.sock")
try:
session.login_with_password("", "")
xenapi = session.xenapi
# print xenapi.VM.get_all_records()
# print xenapi.VM_metrics.get_all_records()
print xenapi.VM.get_all()
print xenapi.host.get_all()
vm = xenapi.VM.get_by_name_label("vmu")[0]
xenapi.VM.start(vm, False)
finally:
session.xenapi.session.logout()
#!/usr/bin/python
from xen.xm.XenAPI import Session
session=Session('http://localhost:9363/')
try:
session.login_with_password('', '')
xenapi=session.xenapi
host=xenapi.host.get_all()[0]
hostcpu=xenapi.host_cpu.get_all()
print xenapi.host_cpu.get_modelname(hostcpu[0])
finally:
session.xenapi.session.logout()
def __init__(self, host, port):
self.session = Session("http://%s:%d" % (host, port))
self.session.login_with_password('', '')
print "Session: " + str(self.session)
