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https://github.com/retspen/webvirtcloud
synced 2025-07-31 12:41:08 +00:00
external snapshot logs and bug fixes
This commit is contained in:
cserma
catborise
parent
fd6b2ec4bf
commit
68b0494350
2 changed files with 55 additions and 85 deletions
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@ -23,6 +23,9 @@ try:
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VIR_DOMAIN_SNAPSHOT_DELETE_METADATA_ONLY,
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VIR_DOMAIN_SNAPSHOT_LIST_INTERNAL,
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VIR_DOMAIN_SNAPSHOT_LIST_EXTERNAL,
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VIR_DOMAIN_BLOCK_COMMIT_DELETE,
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VIR_DOMAIN_BLOCK_COMMIT_ACTIVE,
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VIR_DOMAIN_BLOCK_JOB_ABORT_PIVOT,
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libvirtError,
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)
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from libvirt_qemu import VIR_DOMAIN_QEMU_AGENT_COMMAND_DEFAULT, qemuAgentCommand
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@ -453,6 +456,7 @@ class wvmInstance(wvmConnect):
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disk_format = used_size = disk_size = None
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disk_cache = disk_io = disk_discard = disk_zeroes = "default"
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readonly = shareable = serial = None
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backing_file = None
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device = disk.xpath("@device")[0]
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if device == "disk":
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@ -484,6 +488,9 @@ class wvmInstance(wvmConnect):
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with contextlib.suppress(Exception):
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disk_zeroes = disk.xpath("driver/@detect_zeroes")[0]
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with contextlib.suppress(Exception):
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backing_file = disk.xpath("backingStore/source/@file")[0]
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readonly = bool(disk.xpath("readonly"))
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shareable = bool(disk.xpath("shareable"))
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serial = (
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@ -513,6 +520,7 @@ class wvmInstance(wvmConnect):
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"storage": storage,
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"path": src_file,
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"format": disk_format,
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"backing_file": backing_file,
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"size": disk_size,
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"used": used_size,
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"cache": disk_cache,
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@ -1309,21 +1317,15 @@ class wvmInstance(wvmConnect):
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xml += self._XMLDesc(VIR_DOMAIN_XML_SECURE)
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xml += """<active>0</active>
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</domainsnapshot>"""
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#
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# flag number for libvirt.VIR_DOMAIN_SNAPSHOT_CREATE_DISK_ONLY
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# is 16 (0x10; 1 << 4)
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#
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self._snapshotCreateXML(xml, VIR_DOMAIN_SNAPSHOT_CREATE_DISK_ONLY)
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tree = ElementTree.fromstring(self._XMLDesc(0))
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for disks in tree.findall("devices/disk"):
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if disks.get('device') == "disk":
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backingStore = disks.find("backingStore")
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if backingStore is not None:
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temp_backing_file = backingStore.find('source').get('file')
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vol_base = self.get_volume_by_path(temp_backing_file)
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pool = vol_base.storagePoolLookupByVolume()
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pool.refresh(0)
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disk_info = self.get_disk_devices()
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for disk in disk_info:
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backing_file = disk["backing_file"]
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vol_base = self.get_volume_by_path(backing_file)
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pool = vol_base.storagePoolLookupByVolume()
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pool.refresh(0)
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def get_external_snapshots(self):
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external_snapshots = []
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@ -1337,52 +1339,20 @@ class wvmInstance(wvmConnect):
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return external_snapshots
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def delete_external_snapshot(self, name, instance):
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base_xml = ElementTree.fromstring(self._XMLDesc(0))
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for disk in base_xml.findall('devices/disk'):
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if disk.get('device') == 'disk':
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backingStore = disk.find('backingStore')
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if backingStore is not None:
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if backingStore.find('source') is not None:
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target_dev = disk.find('target').get('dev')
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backing_file = backingStore.find('source').get('file')
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source_file = disk.find('source').get('file')
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self.instance.blockCommit(target_dev, backing_file, source_file, flags=4|2)
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while True:
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info = self.instance.blockJobInfo(target_dev, 0)
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if info.get('cur') == info.get('end'):
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self.instance.blockJobAbort(target_dev,flags=2)
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break
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snap = self.instance.snapshotLookupByName(name, 0)
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snapXML = ElementTree.fromstring(snap.getXMLDesc(0))
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disks = []
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for disk_backup in snapXML.findall('inactiveDomain/devices/disk'):
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if disk_backup.get('device') == 'disk':
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disk_dict = {}
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if disk_backup.find('source') is not None:
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disk_dict['backing_file'] = disk_backup.find('source').get('file')
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if disk_backup.find('driver') is not None:
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disk_dict['driver_name'] = disk_backup.find('driver').get('name')
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disk_dict['driver_type'] = disk_backup.find('driver').get('type')
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if disk_backup.find('target') is not None:
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disk_dict['target_dev'] = disk_backup.find('target').get('dev')
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disk_dict['target_bus'] = disk_backup.find('target').get('bus')
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if disk_backup.find('boot') is not None:
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disk_dict['boot_order'] = disk_backup.find('boot').get('order')
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disks.append(disk_dict)
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for disk in disks:
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self.instance.updateDeviceFlags("""<disk type='file' device='disk'>
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<driver name='{}' type='{}'/>
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<source file='{}'/>
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<target dev='{}' bus='{}'/>
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<boot order='{}'/>
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</disk>""".format(disk["driver_name"],disk["driver_type"],disk["backing_file"],disk["target_dev"],disk["target_bus"],disk["boot_order"]))
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disk_info = self.get_disk_devices()
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for disk in disk_info:
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target_dev = disk["dev"]
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backing_file = disk["backing_file"]
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source_file = disk["path"]
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self.instance.blockCommit(target_dev, backing_file, source_file,
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flags=VIR_DOMAIN_BLOCK_COMMIT_DELETE|VIR_DOMAIN_BLOCK_COMMIT_ACTIVE)
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while True:
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info = self.instance.blockJobInfo(target_dev, 0)
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if info.get('cur') == info.get('end'):
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self.instance.blockJobAbort(target_dev,flags=VIR_DOMAIN_BLOCK_JOB_ABORT_PIVOT)
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break
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snap = self.instance.snapshotLookupByName(name, 0)
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# flag number for delete snapshot metadata only
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# is 2 (0x2; 1 << 1)
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snap.delete(VIR_DOMAIN_SNAPSHOT_DELETE_METADATA_ONLY)
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def revert_external_snapshot(self, name, instance, date, desc):
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@ -1404,29 +1374,31 @@ class wvmInstance(wvmConnect):
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disk_dict['boot_order'] = disk_backup.find('boot').get('order')
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disks.append(disk_dict)
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# flag number for delete snapshot metadata only
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# is 2 (0x2; 1 << 1)
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snap.delete(VIR_DOMAIN_SNAPSHOT_DELETE_METADATA_ONLY)
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base_xml = ElementTree.fromstring(self._XMLDesc(0))
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for disk in base_xml.findall('devices/disk'):
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if disk.get('device') == 'disk':
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backingStore = disk.find('backingStore')
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if backingStore is not None:
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if backingStore.find('source') is not None:
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vol_base = self.get_volume_by_path(backingStore.find('source').get('file'))
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pool = vol_base.storagePoolLookupByVolume()
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pool.refresh(0)
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vol_snap = self.get_volume_by_path(disk.find('source').get('file'))
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vol_snap.wipe(0)
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vol_snap.delete(0)
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disk_info = self.get_disk_devices()
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for disk in disk_info:
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source_file = disk["path"]
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backing_file = disk["backing_file"]
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vol_base = self.get_volume_by_path(backing_file)
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pool = vol_base.storagePoolLookupByVolume()
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pool.refresh(0)
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vol_snap = self.get_volume_by_path(source_file)
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vol_snap.wipe(0)
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vol_snap.delete(0)
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for disk in disks:
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self.instance.updateDeviceFlags("""<disk type='file' device='disk'>
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<driver name='{}' type='{}'/>
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<source file='{}'/>
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<target dev='{}' bus='{}'/>
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<boot order='{}'/>
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</disk>""".format(disk["driver_name"],disk["driver_type"],disk["backing_file"],disk["target_dev"],disk["target_bus"],disk["boot_order"]))
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self.instance.updateDeviceFlags(
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"""<disk type='file' device='disk'>
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<driver name='{}' type='{}'/>
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<source file='{}'/>
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<target dev='{}' bus='{}'/>
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<boot order='{}'/>
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</disk>""".format(disk["driver_name"],
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disk["driver_type"],
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disk["backing_file"],
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disk["target_dev"],
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disk["target_bus"],
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disk["boot_order"]))
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self.create_external_snapshot(name, instance, date, desc)
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