1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
###############################################################################
# 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
from common import (
log,
exec_cmd,
err,
delete,
)
DEV = {'pxe': 'network',
'disk': 'hd',
'iso': 'cdrom'}
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 = exec_cmd('mktemp -d')
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('ls -l %s' % disk_file).split()[4]
delete(disk_file)
exec_cmd('fallocate -l %s %s' % (disk_size, disk_file))
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']
|
