import string
from vrtManager import util
from vrtManager.connection import wvmConnect
from webvirtcloud.settings import QEMU_CONSOLE_DEFAULT_TYPE
from webvirtcloud.settings import QEMU_CONSOLE_LISTEN_ADDRESSES
from webvirtcloud.settings import INSTANCE_VOLUME_DEFAULT_FORMAT
def get_rbd_storage_data(stg):
xml = stg.XMLDesc(0)
ceph_user = util.get_xml_path(xml, "/pool/source/auth/@username")
def get_ceph_hosts(doc):
hosts = []
for host in doc.xpath("/pool/source/host"):
name = host.prop("name")
if name:
hosts.append({'name': name, 'port': host.prop("port")})
return hosts
ceph_hosts = util.get_xml_path(xml, func=get_ceph_hosts)
secret_uuid = util.get_xml_path(xml, "/pool/source/auth/secret/@uuid")
return ceph_user, secret_uuid, ceph_hosts
class wvmCreate(wvmConnect):
image_format = INSTANCE_VOLUME_DEFAULT_FORMAT
def get_storages_images(self):
"""
Function return all images on all storages
"""
images = []
storages = self.get_storages(only_actives=True)
for storage in storages:
stg = self.get_storage(storage)
try:
stg.refresh(0)
except:
pass
for img in stg.listVolumes():
if img.endswith('.iso'):
pass
else:
images.append(img)
return images
def get_os_type(self):
"""Get guest capabilities"""
return util.get_xml_path(self.get_cap_xml(), "/capabilities/guest/os_type")
def get_host_arch(self):
"""Get guest capabilities"""
return util.get_xml_path(self.get_cap_xml(), "/capabilities/host/cpu/arch")
def create_volume(self, storage, name, size, image_format=image_format, metadata=False):
size = int(size) * 1073741824
stg = self.get_storage(storage)
storage_type = util.get_xml_path(stg.XMLDesc(0), "/pool/@type")
if storage_type == 'dir':
name += '.img'
alloc = 0
else:
alloc = size
metadata = False
xml = """
<volume>
<name>%s</name>
<capacity>%s</capacity>
<allocation>%s</allocation>
<target>
<format type='%s'/>
<permissions>
<owner>107</owner>
<group>107</group>
<mode>0644</mode>
<label>virt_image_t</label>
</permissions>
</target>
</volume>""" % (name, size, alloc, image_format)
stg.createXML(xml, metadata)
try:
stg.refresh(0)
except:
pass
vol = stg.storageVolLookupByName(name)
return vol.path()
def get_volume_type(self, path):
vol = self.get_volume_by_path(path)
vol_type = util.get_xml_path(vol.XMLDesc(0), "/volume/target/format/@type")
if vol_type == 'unknown':
return 'raw'
if vol_type:
return vol_type
else:
return 'raw'
def get_volume_path(self, volume):
storages = self.get_storages(only_actives=True)
for storage in storages:
stg = self.get_storage(storage)
if stg.info()[0] != 0:
stg.refresh(0)
for img in stg.listVolumes():
if img == volume:
vol = stg.storageVolLookupByName(img)
return vol.path()
def get_storage_by_vol_path(self, vol_path):
vol = self.get_volume_by_path(vol_path)
return vol.storagePoolLookupByVolume()
def clone_from_template(self, clone, template, metadata=False):
vol = self.get_volume_by_path(template)
stg = vol.storagePoolLookupByVolume()
storage_type = util.get_xml_path(stg.XMLDesc(0), "/pool/@type")
format = util.get_xml_path(vol.XMLDesc(0), "/volume/target/format/@type")
if storage_type == 'dir':
clone += '.img'
else:
metadata = False
xml = """
<volume>
<name>%s</name>
<capacity>0</capacity>
<allocation>0</allocation>
<target>
<format type='%s'/>
<permissions>
<owner>107</owner>
<group>107</group>
<mode>0644</mode>
<label>virt_image_t</label>
</permissions>
<compat>1.1</compat>
<features>
<lazy_refcounts/>
</features>
</target>
</volume>""" % (clone, format)
stg.createXMLFrom(xml, vol, metadata)
clone_vol = stg.storageVolLookupByName(clone)
return clone_vol.path()
def _defineXML(self, xml):
self.wvm.defineXML(xml)
def delete_volume(self, path):
vol = self.get_volume_by_path(path)
vol.delete()
def create_instance(self, name, memory, vcpu, host_model, uuid, images, cache_mode, networks, virtio, listen_addr, nwfilter=None, video="cirrus", console_pass="random", mac=None):
"""
Create VM function
"""
memory = int(memory) * 1024
if self.is_kvm_supported():
hypervisor_type = 'kvm'
else:
hypervisor_type = 'qemu'
xml = """
<domain type='%s'>
<name>%s</name>
<description>None</description>
<uuid>%s</uuid>
<memory unit='KiB'>%s</memory>
<vcpu>%s</vcpu>""" % (hypervisor_type, name, uuid, memory, vcpu)
if host_model:
xml += """<cpu mode='host-model'/>"""
xml += """<os>
<type arch='%s'>%s</type>
<boot dev='hd'/>
<boot dev='cdrom'/>
<bootmenu enable='yes'/>
</os>""" % (self.get_host_arch(), self.get_os_type())
xml += """<features>
<acpi/><apic/><pae/>
</features>
<clock offset="utc"/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<devices>"""
disk_letters = list(string.lowercase)
for image, img_type in images.items():
stg = self.get_storage_by_vol_path(image)
stg_type = util.get_xml_path(stg.XMLDesc(0), "/pool/@type")
if stg_type == 'rbd':
ceph_user, secret_uuid, ceph_hosts = get_rbd_storage_data(stg)
xml += """<disk type='network' device='disk'>
<driver name='qemu' type='%s' cache='%s'/>
<auth username='%s'>
<secret type='ceph' uuid='%s'/>
</auth>
<source protocol='rbd' name='%s'>""" % (img_type, cache_mode, ceph_user, secret_uuid, image)
if isinstance(ceph_hosts, list):
for host in ceph_hosts:
if host.get('port'):
xml += """
<host name='%s' port='%s'/>""" % (host.get('name'), host.get('port'))
else:
xml += """
<host name='%s'/>""" % host.get('name')
xml += """
</source>"""
else:
xml += """<disk type='file' device='disk'>
<driver name='qemu' type='%s' cache='%s'/>
<source file='%s'/>""" % (img_type, cache_mode, image)
if virtio:
xml += """<target dev='vd%s' bus='virtio'/>""" % (disk_letters.pop(0),)
else:
xml += """<target dev='sd%s' bus='ide'/>""" % (disk_letters.pop(0),)
xml += """</disk>"""
xml += """ <disk type='file' device='cdrom'>
<driver name='qemu' type='raw'/>
<source file=''/>
<target dev='hda' bus='ide'/>
<readonly/>
<address type='drive' controller='0' bus='1' target='0' unit='1'/>
</disk>"""
for net in networks.split(','):
xml += """<interface type='network'>"""
if mac:
xml += """<mac address='%s'/>""" % mac
xml += """<source network='%s'/>""" % net
if nwfilter:
xml += """<filterref filter='%s'/>""" % nwfilter
if virtio:
xml += """<model type='virtio'/>"""
xml += """</interface>"""
if console_pass == "random":
console_pass = "passwd='" + util.randomPasswd() + "'"
else:
if not console_pass == "":
console_pass = "passwd='" + console_pass + "'"
xml += """ <input type='mouse' bus='ps2'/>
<input type='tablet' bus='usb'/>
<graphics type='%s' port='-1' autoport='yes' %s listen='%s'/>
<console type='pty'/>
<video>
<model type='%s'/>
</video>
<memballoon model='virtio'/>
</devices>
</domain>""" % (QEMU_CONSOLE_DEFAULT_TYPE, console_pass, listen_addr, video)
self._defineXML(xml)