def createSnapshot(self, domain=None, xmlDesc=None):
retval = False
if domain is not None:
parent_snapshot_name = self.getCurrentSnapshotName(domain)
if xmlDesc is None:
xml = "<domainsnapshot/>"
else: # validate xml file
try:
doc = XMLParse(xmlDesc)
name = XMLXpath(doc, '/domainsnapshot/name/text()')
if name is not None:
xml = xmlDesc
except:
pass
try:
xml
guest = self.kvc.search_guests(domain)[0]
snapshot = libvirtmod.virDomainSnapshotCreateXML(guest._o,xml,0)
if snapshot is not False:
retval = libvirtmod.virDomainSnapshotGetXMLDesc(snapshot, 0)
except:
pass
if retval is not False:
kvg_guest = self.kvc.search_kvg_guests(domain)[0]
id = self.getCurrentSnapshotName(domain)
kvg_guest.set_current_snapshot(id)
# ここにsnapshotのxmlファイルに親のsnapshotの情報を書き込む処理
try:
xml_path = self.getSnapshotXMLPath(id)
# <parent/>が設定されてない場合
# かつ、snapshot実行前に<currentSnapshot/>が設定されていた場合
if self.getParentName(id) is None and parent_snapshot_name is not None:
if os.path.exists(xml_path):
doc = XMLParse(xml_path)
parent = doc.createElement("parent")
name = doc.createElement("name")
txt = doc.createTextNode(str(parent_snapshot_name))
name.appendChild(txt)
parent.appendChild(name)
doc.childNodes[0].appendChild(parent)
xmlDesc = self.generateXML(doc)
ConfigFile(xml_path).write(xmlDesc)
if os.path.exists(xml_path):
if os.getuid() == 0:
r_chgrp(xml_path,KARESANSUI_GROUP)
r_chmod(xml_path,"g+rw")
r_chmod(xml_path,"o-rwx")
except:
pass
return retval
def getCurrentSnapshotXMLDesc(self,domain=None):
retval = False
if domain is not None:
has_current = self.hasCurrentSnapshot(domain)
if has_current is True:
guest = self.kvc.search_guests(domain)[0]
snapshot = libvirtmod.virDomainSnapshotCurrent(guest._o,0)
if snapshot is not False:
retval = libvirtmod.virDomainSnapshotGetXMLDesc(snapshot, 0)
return retval
def getCurrentSnapshotXMLDesc(self, domain=None):
retval = False
if domain is not None:
has_current = self.hasCurrentSnapshot(domain)
if has_current is True:
guest = self.kvc.search_guests(domain)[0]
snapshot = libvirtmod.virDomainSnapshotCurrent(guest._o, 0)
if snapshot is not False:
retval = libvirtmod.virDomainSnapshotGetXMLDesc(
snapshot, 0)
return retval
def getXMLDesc(self, name, domain=None, flag=True):
retval = None
snapshot = self.lookupByName(name, domain=domain)
if snapshot is not False:
if flag is True:
xml_path = self.getSnapshotXMLPath(name, domain=domain)
if os.path.exists(xml_path):
retval = open(xml_path).read()
if retval is None:
retval = libvirtmod.virDomainSnapshotGetXMLDesc(snapshot, 0)
if retval is False:
retval = None
return retval
def getXMLDesc(self,name,domain=None,flag=True):
retval = None
snapshot = self.lookupByName(name,domain=domain)
if snapshot is not False:
if flag is True:
xml_path = self.getSnapshotXMLPath(name,domain=domain)
if os.path.exists(xml_path):
retval = open(xml_path).read()
if retval is None:
retval = libvirtmod.virDomainSnapshotGetXMLDesc(snapshot, 0)
if retval is False:
retval = None
return retval
def createSnapshot(self, domain=None, xmlDesc=None):
retval = False
if domain is not None:
parent_snapshot_name = self.getCurrentSnapshotName(domain)
if xmlDesc is None:
xml = "<domainsnapshot/>"
else: # validate xml file
try:
doc = XMLParse(xmlDesc)
name = XMLXpath(doc, '/domainsnapshot/name/text()')
if name is not None:
xml = xmlDesc
except:
pass
try:
xml
guest = self.kvc.search_guests(domain)[0]
snapshot = libvirtmod.virDomainSnapshotCreateXML(
guest._o, xml, 0)
if snapshot is not False:
retval = libvirtmod.virDomainSnapshotGetXMLDesc(
snapshot, 0)
except:
pass
if retval is not False:
kvg_guest = self.kvc.search_kvg_guests(domain)[0]
id = self.getCurrentSnapshotName(domain)
kvg_guest.set_current_snapshot(id)
# ここにsnapshotのxmlファイルに親のsnapshotの情報を書き込む処理
try:
xml_path = self.getSnapshotXMLPath(id)
# <parent/>が設定されてない場合
# かつ、snapshot実行前に<currentSnapshot/>が設定されていた場合
if self.getParentName(
id) is None and parent_snapshot_name is not None:
if os.path.exists(xml_path):
doc = XMLParse(xml_path)
parent = doc.createElement("parent")
name = doc.createElement("name")
txt = doc.createTextNode(str(parent_snapshot_name))
name.appendChild(txt)
parent.appendChild(name)
doc.childNodes[0].appendChild(parent)
xmlDesc = self.generateXML(doc)
ConfigFile(xml_path).write(xmlDesc)
if os.path.exists(xml_path):
if os.getuid() == 0:
r_chgrp(xml_path, KARESANSUI_GROUP)
r_chmod(xml_path, "g+rw")
r_chmod(xml_path, "o-rwx")
except:
pass
return retval
