mirror of
https://github.com/retspen/webvirtcloud
synced 2024-12-25 07:35:22 +00:00
352 lines
14 KiB
Python
352 lines
14 KiB
Python
import string
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from vrtManager import util
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from vrtManager.connection import wvmConnect
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from webvirtcloud.settings import INSTANCE_VOLUME_DEFAULT_OWNER as DEFAULT_OWNER
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from webvirtcloud.settings import INSTANCE_VOLUME_DEFAULT_FORMAT
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from webvirtcloud.settings import INSTANCE_VOLUME_DEFAULT_SCSI_CONTROLLER
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def get_rbd_storage_data(stg):
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xml = stg.XMLDesc(0)
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ceph_user = util.get_xml_path(xml, "/pool/source/auth/@username")
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def get_ceph_hosts(doc):
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hosts = list()
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for host in doc.xpath("/pool/source/host"):
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name = host.prop("name")
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if name:
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hosts.append({'name': name, 'port': host.prop("port")})
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return hosts
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ceph_hosts = util.get_xml_path(xml, func=get_ceph_hosts)
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secret_uuid = util.get_xml_path(xml, "/pool/source/auth/secret/@uuid")
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return ceph_user, secret_uuid, ceph_hosts
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class wvmCreate(wvmConnect):
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image_format = INSTANCE_VOLUME_DEFAULT_FORMAT
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def get_storages_images(self):
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"""
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Function return all images on all storages
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"""
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images = list()
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storages = self.get_storages(only_actives=True)
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for storage in storages:
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stg = self.get_storage(storage)
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try:
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stg.refresh(0)
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except:
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pass
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for img in stg.listVolumes():
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if img.lower().endswith('.iso'):
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pass
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else:
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images.append(img)
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return images
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def get_os_type(self):
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"""Get guest os type"""
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return util.get_xml_path(self.get_cap_xml(), "/capabilities/guest/os_type")
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def get_host_arch(self):
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"""Get guest capabilities"""
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return util.get_xml_path(self.get_cap_xml(), "/capabilities/host/cpu/arch")
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def create_volume(self, storage, name, size, image_format=image_format, metadata=False, owner=DEFAULT_OWNER):
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size = int(size) * 1073741824
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stg = self.get_storage(storage)
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storage_type = util.get_xml_path(stg.XMLDesc(0), "/pool/@type")
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if storage_type == 'dir':
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if image_format in ('qcow', 'qcow2'):
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name += '.' + image_format
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else:
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name += '.img'
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alloc = 0
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else:
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alloc = size
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metadata = False
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xml = """
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<volume>
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<name>%s</name>
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<capacity>%s</capacity>
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<allocation>%s</allocation>
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<target>
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<format type='%s'/>
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<permissions>
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<owner>%s</owner>
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<group>%s</group>
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<mode>0644</mode>
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<label>virt_image_t</label>
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</permissions>
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<compat>1.1</compat>
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<features>
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<lazy_refcounts/>
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</features>
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</target>
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</volume>""" % (name, size, alloc, image_format, owner['uid'], owner['guid'])
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stg.createXML(xml, metadata)
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try:
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stg.refresh(0)
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except:
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pass
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vol = stg.storageVolLookupByName(name)
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return vol.path()
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def get_volume_type(self, path):
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vol = self.get_volume_by_path(path)
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vol_type = util.get_xml_path(vol.XMLDesc(0), "/volume/target/format/@type")
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if vol_type == 'unknown' or vol_type == 'iso':
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return 'raw'
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if vol_type:
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return vol_type
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else:
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return 'raw'
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def get_volume_path(self, volume, pool=None):
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if not pool:
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storages = self.get_storages(only_actives=True)
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else:
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storages = [pool]
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for storage in storages:
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stg = self.get_storage(storage)
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if stg.info()[0] != 0:
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stg.refresh(0)
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for img in stg.listVolumes():
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if img == volume:
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vol = stg.storageVolLookupByName(img)
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return vol.path()
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def get_storage_by_vol_path(self, vol_path):
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vol = self.get_volume_by_path(vol_path)
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return vol.storagePoolLookupByVolume()
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def clone_from_template(self, clone, template, storage=None, metadata=False, owner=DEFAULT_OWNER):
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vol = self.get_volume_by_path(template)
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if not storage:
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stg = vol.storagePoolLookupByVolume()
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else:
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stg = self.get_storage(storage)
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storage_type = util.get_xml_path(stg.XMLDesc(0), "/pool/@type")
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format = util.get_xml_path(vol.XMLDesc(0), "/volume/target/format/@type")
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if storage_type == 'dir':
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clone += '.img'
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else:
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metadata = False
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xml = """
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<volume>
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<name>%s</name>
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<capacity>0</capacity>
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<allocation>0</allocation>
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<target>
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<format type='%s'/>
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<permissions>
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<owner>%s</owner>
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<group>%s</group>
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<mode>0644</mode>
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<label>virt_image_t</label>
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</permissions>
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<compat>1.1</compat>
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<features>
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<lazy_refcounts/>
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</features>
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</target>
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</volume>""" % (clone, format, owner['uid'], owner['guid'])
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stg.createXMLFrom(xml, vol, metadata)
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clone_vol = stg.storageVolLookupByName(clone)
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return clone_vol.path()
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def _defineXML(self, xml):
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self.wvm.defineXML(xml)
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def delete_volume(self, path):
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vol = self.get_volume_by_path(path)
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vol.delete()
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def create_instance(self, name, memory, vcpu, vcpu_mode, uuid, arch, machine, firmware, images,
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networks, nwfilter, graphics, virtio, listen_addr,
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video="vga", console_pass="random", mac=None,
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cache_mode=None, io_mode=None, discard_mode=None, detect_zeroes_mode=None,
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qemu_ga=True):
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"""
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Create VM function
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"""
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caps = self.get_capabilities(arch)
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dom_caps = self.get_dom_capabilities(arch, machine)
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memory = int(memory) * 1024
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xml = """
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<domain type='%s'>
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<name>%s</name>
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<description>None</description>
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<uuid>%s</uuid>
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<memory unit='KiB'>%s</memory>
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<vcpu>%s</vcpu>""" % (dom_caps["domain"], name, uuid, memory, vcpu)
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if dom_caps["os_support"] == 'yes':
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xml += """<os>
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<type arch='%s' machine='%s'>%s</type>""" % (arch, machine, caps["os_type"])
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xml += """ <boot dev='hd'/>
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<boot dev='cdrom'/>
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<bootmenu enable='yes'/>"""
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if firmware:
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if firmware["secure"] == 'yes':
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xml += """<loader readonly='%s' type='%s' secure='%s'>%s</loader>""" % (firmware["readonly"],
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firmware["type"],
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firmware["secure"],
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firmware["loader"])
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if firmware["secure"] == 'no':
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xml += """<loader readonly='%s' type='%s'>%s</loader>""" % (firmware["readonly"],
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firmware["type"],
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firmware["loader"])
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xml += """</os>"""
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if caps["features"]:
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xml += """<features>"""
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if 'acpi' in caps["features"]:
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xml += """<acpi/>"""
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if 'apic' in caps["features"]:
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xml += """<apic/>"""
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if 'pae' in caps["features"]:
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xml += """<pae/>"""
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if 'yes' == firmware.get("secure", 'no'):
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xml += """<smm state="on"/>"""
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xml += """</features>"""
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if vcpu_mode == "host-model":
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xml += """<cpu mode='host-model'/>"""
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elif vcpu_mode == "host-passthrough":
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xml += """<cpu mode='host-passthrough'/>"""
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elif vcpu_mode == "":
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pass
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else:
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xml += """<cpu mode='custom' match='exact' check='none'>
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<model fallback='allow'>%s</model>""" % vcpu_mode
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xml += """</cpu>"""
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xml += """
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<clock offset="utc"/>
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<on_poweroff>destroy</on_poweroff>
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<on_reboot>restart</on_reboot>
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<on_crash>restart</on_crash>
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"""
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xml += """<devices>"""
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vd_disk_letters = list(string.lowercase)
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fd_disk_letters = list(string.lowercase)
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hd_disk_letters = list(string.lowercase)
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sd_disk_letters = list(string.lowercase)
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add_cd = True
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disk_opts = ''
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if cache_mode is not None and cache_mode != 'default':
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disk_opts += "cache='%s' " % cache_mode
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if io_mode is not None and io_mode != 'default':
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disk_opts += "io='%s' " % io_mode
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if discard_mode is not None and discard_mode != 'default':
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disk_opts += "discard='%s' " % discard_mode
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if detect_zeroes_mode is not None and detect_zeroes_mode != 'default':
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disk_opts += "detect_zeroes='%s' " % detect_zeroes_mode
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for volume in images:
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stg = self.get_storage_by_vol_path(volume['path'])
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stg_type = util.get_xml_path(stg.XMLDesc(0), "/pool/@type")
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if volume['device'] == 'cdrom': add_cd = False
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if stg_type == 'rbd':
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ceph_user, secret_uuid, ceph_hosts = get_rbd_storage_data(stg)
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xml += """<disk type='network' device='disk'>
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<driver name='qemu' type='%s' %s />""" % (volume['type'], disk_opts)
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xml += """ <auth username='%s'>
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<secret type='ceph' uuid='%s'/>
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</auth>
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<source protocol='rbd' name='%s'>""" % (ceph_user, secret_uuid, volume['path'])
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if isinstance(ceph_hosts, list):
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for host in ceph_hosts:
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if host.get('port'):
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xml += """
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<host name='%s' port='%s'/>""" % (host.get('name'), host.get('port'))
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else:
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xml += """
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<host name='%s'/>""" % host.get('name')
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xml += """</source>"""
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else:
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xml += """<disk type='file' device='%s'>""" % volume['device']
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xml += """ <driver name='qemu' type='%s' %s/>""" % (volume['type'], disk_opts)
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xml += """ <source file='%s'/>""" % volume['path']
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if volume.get('bus') == 'virtio':
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xml += """<target dev='vd%s' bus='%s'/>""" % (vd_disk_letters.pop(0), volume.get('bus'))
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elif volume.get('bus') == 'ide':
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xml += """<target dev='hd%s' bus='%s'/>""" % (hd_disk_letters.pop(0), volume.get('bus'))
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elif volume.get('bus') == 'fdc':
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xml += """<target dev='fd%s' bus='%s'/>""" % (fd_disk_letters.pop(0), volume.get('bus'))
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elif volume.get('bus') == 'sata' or volume.get('bus') == 'scsi':
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xml += """<target dev='sd%s' bus='%s'/>""" % (sd_disk_letters.pop(0), volume.get('bus'))
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else:
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xml += """<target dev='sd%s'/>""" % sd_disk_letters.pop(0)
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xml += """</disk>"""
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if add_cd:
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xml += """<disk type='file' device='cdrom'>
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<driver name='qemu' type='raw'/>
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<source file = '' />
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<readonly/>"""
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if 'ide' in dom_caps['disk_bus']:
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xml += """<target dev='hd%s' bus='%s'/>""" % (hd_disk_letters.pop(0), 'ide')
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elif 'sata' in dom_caps['disk_bus']:
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xml += """<target dev='sd%s' bus='%s'/>""" % (sd_disk_letters.pop(0), 'sata')
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elif 'scsi' in dom_caps['disk_bus']:
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xml += """<target dev='sd%s' bus='%s'/>""" % (sd_disk_letters.pop(0), 'scsi')
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else:
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xml += """<target dev='vd%s' bus='%s'/>""" % (vd_disk_letters.pop(0), 'virtio')
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xml += """</disk>"""
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if volume.get('bus') == 'scsi':
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xml += """<controller type='scsi' model='%s'/>""" % INSTANCE_VOLUME_DEFAULT_SCSI_CONTROLLER
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for net in networks.split(','):
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xml += """<interface type='network'>"""
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if mac:
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xml += """<mac address='%s'/>""" % mac
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xml += """<source network='%s'/>""" % net
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if nwfilter:
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xml += """<filterref filter='%s'/>""" % nwfilter
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if virtio:
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xml += """<model type='virtio'/>"""
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xml += """</interface>"""
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if console_pass == "random":
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console_pass = "passwd='" + util.randomPasswd() + "'"
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else:
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if not console_pass == "":
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console_pass = "passwd='" + console_pass + "'"
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if 'usb' in dom_caps['disk_bus']:
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xml += """<input type='mouse' bus='{}'/>""".format('virtio' if virtio else 'usb')
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xml += """<input type='keyboard' bus='{}'/>""".format('virtio' if virtio else 'usb')
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xml += """<input type='tablet' bus='{}'/>""".format('virtio' if virtio else 'usb')
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else:
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xml += """<input type='mouse'/>"""
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xml += """<input type='keyboard'/>"""
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xml += """<input type='tablet'/>"""
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xml += """
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<graphics type='%s' port='-1' autoport='yes' %s listen='%s'/>
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<console type='pty'/> """ % (graphics, console_pass, listen_addr)
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if qemu_ga and virtio:
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xml += """ <channel type='unix'>
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<target type='virtio' name='org.qemu.guest_agent.0'/>
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</channel>"""
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xml += """ <video>
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<model type='%s'/>
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</video>
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</devices>
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</domain>""" % video
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self._defineXML(xml)
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