import string
from vrtManager import util
from vrtManager.connection import wvmConnect
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 = list()
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):
def get_storages_images(self):
"""
Function return all images on all storages
"""
images = list()
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.lower().endswith('.iso'):
pass
else:
images.append(img)
return images
def get_os_type(self):
"""Get guest os type"""
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, metadata=False, disk_owner_uid=0, disk_owner_gid=0):
size = int(size) * 1073741824
stg = self.get_storage(storage)
storage_type = util.get_xml_path(stg.XMLDesc(0), "/pool/@type")
if storage_type == 'dir':
if image_format in ('qcow', 'qcow2'):
name += '.' + image_format
else:
name += '.img'
alloc = 0
else:
alloc = size
metadata = False
xml = f"""
<volume>
<name>{name}</name>
<capacity>{size}</capacity>
<allocation>{alloc}</allocation>
<target>
<format type='{image_format}'/>
<permissions>
<owner>{disk_owner_uid}</owner>
<group>{disk_owner_gid}</group>
<mode>0644</mode>
<label>virt_image_t</label>
</permissions>
<compat>1.1</compat>
<features>
<lazy_refcounts/>
</features>
</target>
</volume>"""
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' or vol_type == 'iso':
return 'raw'
if vol_type:
return vol_type
else:
return 'raw'
def get_volume_path(self, volume, pool=None):
if not pool:
storages = self.get_storages(only_actives=True)
else:
storages = [pool]
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, storage=None, metadata=False, disk_owner_uid=0, disk_owner_gid=0):
vol = self.get_volume_by_path(template)
if not storage:
stg = vol.storagePoolLookupByVolume()
else:
stg = self.get_storage(storage)
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 = f"""
<volume>
<name>{clone}</name>
<capacity>0</capacity>
<allocation>0</allocation>
<target>
<format type='{format}'/>
<permissions>
<owner>{disk_owner_uid}</owner>
<group>{disk_owner_gid}</group>
<mode>0644</mode>
<label>virt_image_t</label>
</permissions>
<compat>1.1</compat>
<features>
<lazy_refcounts/>
</features>
</target>
</volume>"""
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, vcpu_mode, uuid, arch, machine, firmware, volumes,
networks, nwfilter, graphics, virtio, listen_addr,
video="vga", console_pass="random", mac=None, qemu_ga=True):
"""
Create VM function
"""
caps = self.get_capabilities(arch)
dom_caps = self.get_dom_capabilities(arch, machine)
memory = int(memory) * 1024
xml = f"""
<domain type='{dom_caps["domain"]}'>
<name>{name}</name>
<description>None</description>
<uuid>{uuid}</uuid>
<memory unit='KiB'>{memory}</memory>
<vcpu>{vcpu}</vcpu>"""
if dom_caps["os_support"] == 'yes':
xml += f"""<os>
<type arch='{arch}' machine='{machine}'>{caps["os_type"]}</type>"""
xml += """ <boot dev='hd'/>
<boot dev='cdrom'/>
<bootmenu enable='yes'/>"""
if firmware:
if firmware["secure"] == 'yes':
xml += """<loader readonly='%s' type='%s' secure='%s'>%s</loader>""" % (firmware["readonly"],
firmware["type"],
firmware["secure"],
firmware["loader"])
if firmware["secure"] == 'no':
xml += """<loader readonly='%s' type='%s'>%s</loader>""" % (firmware["readonly"],
firmware["type"],
firmware["loader"])
xml += """</os>"""
if caps["features"]:
xml += """<features>"""
if 'acpi' in caps["features"]:
xml += """<acpi/>"""
if 'apic' in caps["features"]:
xml += """<apic/>"""
if 'pae' in caps["features"]:
xml += """<pae/>"""
if firmware.get("secure", 'no') == 'yes':
xml += """<smm state="on"/>"""
xml += """</features>"""
if vcpu_mode == "host-model":
xml += """<cpu mode='host-model'/>"""
elif vcpu_mode == "host-passthrough":
xml += """<cpu mode='host-passthrough'/>"""
elif vcpu_mode == "":
pass
else:
xml += f"""<cpu mode='custom' match='exact' check='none'>
<model fallback='allow'>{vcpu_mode}</model>"""
xml += """</cpu>"""
xml += """
<clock offset="utc"/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
"""
xml += """<devices>"""
vd_disk_letters = list(string.ascii_lowercase)
fd_disk_letters = list(string.ascii_lowercase)
hd_disk_letters = list(string.ascii_lowercase)
sd_disk_letters = list(string.ascii_lowercase)
add_cd = True
for volume in volumes:
disk_opts = ''
if volume['cache_mode'] is not None and volume['cache_mode'] != 'default':
disk_opts += f"cache='{volume['cache_mode']}' "
if volume['io_mode'] is not None and volume['io_mode'] != 'default':
disk_opts += f"io='{volume['io_mode']}' "
if volume['discard_mode'] is not None and volume['discard_mode'] != 'default':
disk_opts += f"discard='{volume['discard_mode']}' "
if volume['detect_zeroes_mode'] is not None and volume['detect_zeroes_mode'] != 'default':
disk_opts += f"detect_zeroes='{volume['detect_zeroes_mode']}' "
stg = self.get_storage_by_vol_path(volume['path'])
stg_type = util.get_xml_path(stg.XMLDesc(0), "/pool/@type")
if volume['device'] == 'cdrom': add_cd = False
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' %s />""" % (volume['type'], disk_opts)
xml += """ <auth username='%s'>
<secret type='ceph' uuid='%s'/>
</auth>
<source protocol='rbd' name='%s'>""" % (ceph_user, secret_uuid, volume['path'])
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='%s'>""" % volume['device']
xml += """ <driver name='qemu' type='%s' %s/>""" % (volume['type'], disk_opts)
xml += f""" <source file='%s'/>""" % volume['path']
if volume.get('bus') == 'virtio':
xml += """<target dev='vd%s' bus='%s'/>""" % (vd_disk_letters.pop(0), volume.get('bus'))
elif volume.get('bus') == 'ide':
xml += """<target dev='hd%s' bus='%s'/>""" % (hd_disk_letters.pop(0), volume.get('bus'))
elif volume.get('bus') == 'fdc':
xml += """<target dev='fd%s' bus='%s'/>""" % (fd_disk_letters.pop(0), volume.get('bus'))
elif volume.get('bus') == 'sata' or volume.get('bus') == 'scsi':
xml += """<target dev='sd%s' bus='%s'/>""" % (sd_disk_letters.pop(0), volume.get('bus'))
else:
xml += """<target dev='sd%s'/>""" % sd_disk_letters.pop(0)
xml += """</disk>"""
if add_cd:
xml += """<disk type='file' device='cdrom'>
<driver name='qemu' type='raw'/>
<source file = '' />
<readonly/>"""
if 'ide' in dom_caps['disk_bus']:
xml += """<target dev='hd%s' bus='%s'/>""" % (hd_disk_letters.pop(0), 'ide')
elif 'sata' in dom_caps['disk_bus']:
xml += """<target dev='sd%s' bus='%s'/>""" % (sd_disk_letters.pop(0), 'sata')
elif 'scsi' in dom_caps['disk_bus']:
xml += """<target dev='sd%s' bus='%s'/>""" % (sd_disk_letters.pop(0), 'scsi')
else:
xml += """<target dev='vd%s' bus='%s'/>""" % (vd_disk_letters.pop(0), 'virtio')
xml += """</disk>"""
if volume.get('bus') == 'scsi':
xml += f"""<controller type='scsi' model='{volume.get('scsi_model')}'/>"""
for net in networks.split(','):
xml += """<interface type='network'>"""
if mac:
xml += f"""<mac address='{mac}'/>"""
xml += f"""<source network='{net}'/>"""
if nwfilter:
xml += f"""<filterref filter='{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 + "'"
if 'usb' in dom_caps['disk_bus']:
xml += """<input type='mouse' bus='{}'/>""".format('virtio' if virtio else 'usb')
xml += """<input type='keyboard' bus='{}'/>""".format('virtio' if virtio else 'usb')
xml += """<input type='tablet' bus='{}'/>""".format('virtio' if virtio else 'usb')
else:
xml += """<input type='mouse'/>"""
xml += """<input type='keyboard'/>"""
xml += """<input type='tablet'/>"""
xml += f"""
<graphics type='{graphics}' port='-1' autoport='yes' {console_pass} listen='{listen_addr}'/>
<console type='pty'/> """
if qemu_ga and virtio:
xml += """ <channel type='unix'>
<target type='virtio' name='org.qemu.guest_agent.0'/>
</channel>"""
xml += f""" <video>
<model type='{video}'/>
</video>
</devices>
</domain>"""
self._defineXML(xml)