def getOvfStartup(ovf):
"""
Returns a schedule representing the startup order for a virtual
appliance from an ovf.
@param ovf: Ovf file
@type ovf: DOM Document
@rtype: dictionary
@return: startup dictionary of domains
"""
startupDict = dict(boot='',
entities=dict())
systems = startupDict['entities']
# Create a list of all startup sections
startupSections = Ovf.getNodes(ovf, (Ovf.hasTagName, 'StartupSection'))
# Create an entry in startup dictionary for each entry in Startup sections
for section in startupSections:
for item in section.getElementsByTagName('Item'):
attributes = []
for i in range(item.attributes.length):
attr = item.attributes.item(i)
if attr.name == 'ovf:id':
sysId = attr.value
elif(attr.name == 'ovf:order' or
attr.name == 'ovf:startDelay'):
attributes.append((attr.name, attr.value))
# Store attribute pairs in dicitonary
virtualSys = dict(attributes)
if not virtualSys.has_key('ovf:order'):
virtualSys['ovf:order'] = '0'
if not virtualSys.has_key('ovf:startDelay'):
virtualSys['ovf:startDelay'] = '0'
parentId = section.parentNode.getAttribute('ovf:id')
if not systems.has_key(parentId):
systems[parentId] = dict(systems=[])
systems[parentId]['systems'].append(sysId)
systems[sysId] = virtualSys
# Create a default entry for each system not in a startup section
for each in Ovf.getNodes(ovf, (Ovf.hasTagName, 'VirtualSystem')):
sysId = each.getAttribute('ovf:id')
# If parentNode is Envelope, set as root system
# else, trace back and fill in missing parent info
if each.parentNode.tagName == 'Envelope':
startupDict['boot'] = sysId
systems[sysId] = {'ovf:order':'0', 'ovf:startDelay':'0'}
else:
parent = each.parentNode
parentId = parent.getAttribute('ovf:id')
if systems.has_key(parentId) and \
not systems.has_key(sysId):
systems[parentId]['systems'].append(sysId)
systems[sysId] = {'ovf:order':'0', 'ovf:startDelay':'0'}
# set parent info
if parent.parentNode.tagName == 'Envelope':
startupDict['boot'] = parentId
while(not systems.has_key(parentId)):
systems[parentId] = {'systems':[]}
systems[parentId]['systems'].append(sysId)
systems[sysId] = {'ovf:order':'0', 'ovf:startDelay':'0'}
# Increment, if not at root
if parent.parentNode.tagName == 'Envelope':
startupDict['boot'] = parentId
else:
parent = parent.parentNode
sysId = parentId
parentId = parent.getAttribute('ovf:id')
return startupDict
def getOvfDomains(ovf, path, hypervisor=None, configId=None, envDirectory=None):
"""
Returns a dictionary with all of the VirtualSystems in an ovf
listed as keys with the libvirt domain, for the specified configuration,
stored as the value.
@param ovf: Ovf file
@type ovf: DOM Document
@param path: path to Ovf file
@type path: String
@param configId: configuration name
@type configId: String
@todo: needs work, very basic, assumes hypervisor type
"""
domains = dict()
#directory = os.path.abspath(path.rsplit("/", 1)[0])
directory = path
if configId == None:
configId = Ovf.getDefaultConfiguration(ovf)
else:
if not Ovf.isConfiguration(ovf, configId):
raise RuntimeError("OvfLibvirt.getOvfDomains: configuration " +
configId + " not found.")
# Get Nodes
references = Ovf.getElementsByTagName(ovf, 'References')
diskSection = Ovf.getElementsByTagName(ovf, 'DiskSection')
if len(references) is not 1:
raise NotImplementedError("OvfLibvirt.getOvfDomain: Unable to locate" +
" a single References node.")
elif len(diskSection) is not 1:
raise NotImplementedError("OvfLibvirt.getOvfDomain: Unable to locate" +
" a single DiskSection node.")
else:
refs = references[0]
disks = diskSection[0]
# For each system, create libvirt domain description
for system in Ovf.getNodes(ovf, (Ovf.hasTagName, 'VirtualSystem')):
ovfId = system.getAttribute('ovf:id')
# Get VirtualHardwareSection
virtualHardwareSection = Ovf.getElementsByTagName(system,
'VirtualHardwareSection')
if len(virtualHardwareSection) is not 1:
raise NotImplementedError("OvfLibvirt.getOvfDomain: Unable to locate" +
" a single VirtualHardwareSection node.")
else:
virtualHardware = virtualHardwareSection[0]
#metadata
name = nameElement(ovfId)
#resources
memory = memoryElement(getOvfMemory(virtualHardware, configId))
vcpu = vcpuElement(getOvfVcpu(virtualHardware, configId))
#domain
if not hypervisor:
hypervisor = OvfPlatform.getVsSystemType(system)
else:
hypervisor = hypervisor.lower()
domainType = getDomainTypeForVsType(hypervisor)
domain = domainElement(domainType)
#boot
bootElements(domain, hypervisor)
#time
clock = clockElement('utc')
#features
features = featuresElement(acpi=True)
#life cycle
onPowerOff = onPowerOffElement('destroy')
onReboot = onRebootElement('restart')
onCrash = onCrashElement('destroy')
#devices - graphics
graphics = graphicsElement('vnc', 'localhost', '-1')
#devices - console
console = consoleElement('pty', '0')
#devices
devices = devicesElement(graphics, console)
#disks
envFile = None
if envDirectory:
envFile = os.path.join(envDirectory, ovfId + '.iso')
diskDicts = getOvfDisks(virtualHardware, directory, refs,
disks, configId, envFile)
for dsk in diskDicts:
addDevice(devices, diskElement(dsk))
#network
netDicts = getOvfNetworks(virtualHardware, configId)
for networkDict in netDicts:
network = networkElement(networkDict)
addDevice(devices, network)
#document
document = libvirtDocument(domain, name, memory, vcpu,
clock, features, onPowerOff,
onReboot, onCrash, devices)
domains[ovfId] = Ovf.xmlString(document)
# Delete any extra copies of disk images
cleanupExtraDiskImages(directory, refs, disks)
return domains
