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###############################################################################
# Copyright (c) 2015 Ericsson AB and others.
# szilard.cserey@ericsson.com
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
###############################################################################
from lxml import etree
from hardware_adapter import HardwareAdapter
import tempfile
import os
from common import (
log,
exec_cmd,
err,
delete,
)
DEV = {'pxe': 'network',
'disk': 'hd',
'iso': 'cdrom'}
VOL_XML_TEMPLATE = '''<volume type='file'>
<name>{name}</name>
<capacity unit='{unit}'>{size!s}</capacity>
<target>
<format type='{format_type}'/>
</target>
</volume>'''
DEFAULT_POOL = 'jenkins'
class LibvirtAdapter(HardwareAdapter):
def __init__(self, yaml_path):
super(LibvirtAdapter, self).__init__(yaml_path)
self.parser = etree.XMLParser(remove_blank_text=True)
def node_power_off(self, node_id):
vm_name = self.get_node_property(node_id, 'libvirtName')
log('Power OFF Node %s' % vm_name)
state = exec_cmd('virsh domstate %s' % vm_name)
if state == 'running':
exec_cmd('virsh destroy %s' % vm_name, False)
def node_power_on(self, node_id):
vm_name = self.get_node_property(node_id, 'libvirtName')
log('Power ON Node %s' % vm_name)
state = exec_cmd('virsh domstate %s' % vm_name)
if state == 'shut off':
exec_cmd('virsh start %s' % vm_name)
def node_reset(self, node_id):
vm_name = self.get_node_property(node_id, 'libvirtName')
log('Reset Node %s' % vm_name)
exec_cmd('virsh reset %s' % vm_name)
def translate(self, boot_order_list):
translated = []
for boot_dev in boot_order_list:
if boot_dev in DEV:
translated.append(DEV[boot_dev])
else:
err('Boot device %s not recognized' % boot_dev)
return translated
def node_set_boot_order(self, node_id, boot_order_list):
boot_order_list = self.translate(boot_order_list)
vm_name = self.get_node_property(node_id, 'libvirtName')
temp_dir = tempfile.mkdtemp()
log('Set boot order %s on Node %s' % (boot_order_list, vm_name))
resp = exec_cmd('virsh dumpxml %s' % vm_name)
xml_dump = etree.fromstring(resp, self.parser)
os = xml_dump.xpath('/domain/os')
for o in os:
for bootelem in ['boot', 'bootmenu']:
boot = o.xpath(bootelem)
for b in boot:
o.remove(b)
for dev in boot_order_list:
b = etree.Element('boot')
b.set('dev', dev)
o.append(b)
bmenu = etree.Element('bootmenu')
bmenu.set('enable', 'no')
o.append(bmenu)
tree = etree.ElementTree(xml_dump)
xml_file = temp_dir + '/%s.xml' % vm_name
with open(xml_file, 'w') as f:
tree.write(f, pretty_print=True, xml_declaration=True)
exec_cmd('virsh define %s' % xml_file)
delete(temp_dir)
def node_zero_mbr(self, node_id):
vm_name = self.get_node_property(node_id, 'libvirtName')
resp = exec_cmd('virsh dumpxml %s' % vm_name)
xml_dump = etree.fromstring(resp)
disks = xml_dump.xpath('/domain/devices/disk')
for disk in disks:
if disk.get('device') == 'disk':
sources = disk.xpath('source')
for source in sources:
disk_file = source.get('file')
disk_size = exec_cmd('qemu-img info '
'%s |grep \"virtual size:\"'
% disk_file).split()[2]
delete(disk_file)
exec_cmd('qemu-img create -f qcow2 %s %s' % (disk_file,
disk_size))
def node_eject_iso(self, node_id):
vm_name = self.get_node_property(node_id, 'libvirtName')
device = self.get_name_of_device(vm_name, 'cdrom')
exec_cmd('virsh change-media %s --eject %s --config --live'
% (vm_name, device), False)
def node_insert_iso(self, node_id, iso_file):
vm_name = self.get_node_property(node_id, 'libvirtName')
device = self.get_name_of_device(vm_name, 'cdrom')
exec_cmd('virsh change-media %s --insert %s %s'
% (vm_name, device, iso_file))
def get_node_pxe_mac(self, node_id):
mac_list = []
vm_name = self.get_node_property(node_id, 'libvirtName')
resp = exec_cmd('virsh dumpxml %s' % vm_name)
xml_dump = etree.fromstring(resp)
interfaces = xml_dump.xpath('/domain/devices/interface')
for interface in interfaces:
macs = interface.xpath('mac')
for mac in macs:
mac_list.append(mac.get('address').lower())
return mac_list
def get_name_of_device(self, vm_name, device_type):
resp = exec_cmd('virsh dumpxml %s' % vm_name)
xml_dump = etree.fromstring(resp)
disks = xml_dump.xpath('/domain/devices/disk')
for disk in disks:
if disk.get('device') == device_type:
targets = disk.xpath('target')
for target in targets:
device = target.get('dev')
if device:
return device
def get_virt_net_conf_dir(self):
return self.dha_struct['virtNetConfDir']
def upload_iso(self, iso_file):
size = os.path.getsize(iso_file)
vol_name = os.path.basename(iso_file)
vol_xml = VOL_XML_TEMPLATE.format(name=vol_name, unit='bytes',
size=size, format_type='raw')
fd, fname = tempfile.mkstemp(text=True, suffix='deploy')
os.write(fd, vol_xml)
os.close(fd)
log(vol_xml)
pool = DEFAULT_POOL # FIXME
exec_cmd('virsh vol-create --pool %s %s' % (pool, fname))
vol_path = exec_cmd('virsh vol-path --pool %s %s' % (pool, vol_name))
exec_cmd('virsh vol-upload %s %s' % (vol_path, iso_file),
attempts=5, delay=10, verbose=True)
delete(fname)
return vol_path
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