mirror of
https://github.com/retspen/webvirtcloud
synced 2024-12-25 07:35:22 +00:00
247 lines
9.2 KiB
Python
247 lines
9.2 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 QEMU_CONSOLE_DEFAULT_TYPE
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from webvirtcloud.settings import INSTANCE_VOLUME_DEFAULT_FORMAT
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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 = []
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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 = []
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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.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 capabilities"""
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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):
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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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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>107</owner>
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<group>107</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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</target>
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</volume>""" % (name, size, alloc, image_format)
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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':
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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):
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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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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, metadata=False):
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vol = self.get_volume_by_path(template)
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stg = vol.storagePoolLookupByVolume()
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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>107</owner>
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<group>107</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)
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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, host_model, uuid, images, cache_mode, networks, virtio, mac=None):
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"""
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Create VM function
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"""
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memory = int(memory) * 1024
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if self.is_kvm_supported():
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hypervisor_type = 'kvm'
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else:
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hypervisor_type = 'qemu'
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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>""" % (hypervisor_type, name, uuid, memory, vcpu)
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if host_model:
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xml += """<cpu mode='host-model'/>"""
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xml += """<os>
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<type arch='%s'>%s</type>
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<boot dev='hd'/>
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<boot dev='cdrom'/>
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<bootmenu enable='yes'/>
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</os>""" % (self.get_host_arch(), self.get_os_type())
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xml += """<features>
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<acpi/><apic/><pae/>
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</features>
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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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<devices>"""
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disk_letters = list(string.lowercase)
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for image, img_type in images.items():
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stg = self.get_storage_by_vol_path(image)
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stg_type = util.get_xml_path(stg.XMLDesc(0), "/pool/@type")
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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' cache='%s'/>
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<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'>""" % (img_type, cache_mode, ceph_user, secret_uuid, image)
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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 += """
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</source>"""
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else:
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xml += """<disk type='file' device='disk'>
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<driver name='qemu' type='%s' cache='%s'/>
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<source file='%s'/>""" % (img_type, cache_mode, image)
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if virtio:
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xml += """<target dev='vd%s' bus='virtio'/>""" % (disk_letters.pop(0),)
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else:
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xml += """<target dev='sd%s' bus='ide'/>""" % (disk_letters.pop(0),)
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xml += """</disk>"""
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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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<target dev='hda' bus='ide'/>
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<readonly/>
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<address type='drive' controller='0' bus='1' target='0' unit='1'/>
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</disk>"""
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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'/>
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<filterref filter='clean-traffic'/>""" % net
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if virtio:
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xml += """<model type='virtio'/>"""
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xml += """</interface>"""
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xml += """ <input type='mouse' bus='ps2'/>
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<input type='tablet' bus='usb'/>
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<graphics type='%s' port='-1' autoport='yes' passwd='%s' listen='127.0.0.1'/>
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<console type='pty'/>
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<video>
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<model type='cirrus'/>
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</video>
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<memballoon model='virtio'/>
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</devices>
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</domain>""" % (QEMU_CONSOLE_DEFAULT_TYPE, util.randomPasswd())
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self._defineXML(xml)
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