def sync_with_hypervisor(vmachineguid, storagedriver_id=None):
"""
Updates a given vmachine with data retrieved from a given pmachine
:param vmachineguid: Guid of the virtual machine
:param storagedriver_id: Storage Driver hosting the vmachine
"""
try:
vmachine = VMachine(vmachineguid)
except Exception as ex:
VMachineController._logger.info('Cannot get VMachine object: {0}'.format(str(ex)))
raise
vm_object = None
if vmachine.pmachine.mgmtcenter and storagedriver_id is not None and vmachine.devicename is not None:
try:
mgmt_center = Factory.get_mgmtcenter(vmachine.pmachine)
storagedriver = StorageDriverList.get_by_storagedriver_id(storagedriver_id)
VMachineController._logger.info('Syncing vMachine (name {0}) with Management center {1}'.format(vmachine.name, vmachine.pmachine.mgmtcenter.name))
vm_object = mgmt_center.get_vm_agnostic_object(devicename=vmachine.devicename,
ip=storagedriver.storage_ip,
mountpoint=storagedriver.mountpoint)
except Exception as ex:
VMachineController._logger.info('Error while fetching vMachine info from management center: {0}'.format(str(ex)))
if vm_object is None and storagedriver_id is None and vmachine.hypervisor_id is not None and vmachine.pmachine is not None:
try:
# Only the vmachine was received, so base the sync on hypervisor id and pmachine
hypervisor = Factory.get(vmachine.pmachine)
VMachineController._logger.info('Syncing vMachine (name {0})'.format(vmachine.name))
vm_object = hypervisor.get_vm_agnostic_object(vmid=vmachine.hypervisor_id)
except Exception as ex:
VMachineController._logger.info('Error while fetching vMachine info from hypervisor: {0}'.format(str(ex)))
if vm_object is None and storagedriver_id is not None and vmachine.devicename is not None:
try:
# Storage Driver id was given, using the devicename instead (to allow hypervisor id updates
# which can be caused by re-adding a vm to the inventory)
pmachine = PMachineList.get_by_storagedriver_id(storagedriver_id)
storagedriver = StorageDriverList.get_by_storagedriver_id(storagedriver_id)
hypervisor = Factory.get(pmachine)
if not hypervisor.file_exists(storagedriver, hypervisor.clean_vmachine_filename(vmachine.devicename)):
return
vmachine.pmachine = pmachine
vmachine.save()
VMachineController._logger.info('Syncing vMachine (device {0}, ip {1}, mountpoint {2})'.format(vmachine.devicename,
storagedriver.storage_ip,
storagedriver.mountpoint))
vm_object = hypervisor.get_vm_object_by_devicename(devicename=vmachine.devicename,
ip=storagedriver.storage_ip,
mountpoint=storagedriver.mountpoint)
except Exception as ex:
VMachineController._logger.info('Error while fetching vMachine info from hypervisor using devicename: {0}'.format(str(ex)))
if vm_object is None:
message = 'Not enough information to sync vmachine'
VMachineController._logger.info('Error: {0}'.format(message))
raise RuntimeError(message)
VMachineController.update_vmachine_config(vmachine, vm_object)
def sync_with_hypervisor(vmachineguid, storagedriver_id=None):
"""
Updates a given vmachine with data retrieved from a given pmachine
:param vmachineguid: Guid of the virtual machine
:param storagedriver_id: Storage Driver hosting the vmachine
"""
try:
vmachine = VMachine(vmachineguid)
except Exception as ex:
VMachineController._logger.info('Cannot get VMachine object: {0}'.format(str(ex)))
raise
vm_object = None
if vmachine.pmachine.mgmtcenter and storagedriver_id is not None and vmachine.devicename is not None:
try:
mgmt_center = Factory.get_mgmtcenter(vmachine.pmachine)
storagedriver = StorageDriverList.get_by_storagedriver_id(storagedriver_id)
VMachineController._logger.info('Syncing vMachine (name {0}) with Management center {1}'.format(vmachine.name, vmachine.pmachine.mgmtcenter.name))
vm_object = mgmt_center.get_vm_agnostic_object(devicename=vmachine.devicename,
ip=storagedriver.storage_ip,
mountpoint=storagedriver.mountpoint)
except Exception as ex:
VMachineController._logger.info('Error while fetching vMachine info from management center: {0}'.format(str(ex)))
if vm_object is None and storagedriver_id is None and vmachine.hypervisor_id is not None and vmachine.pmachine is not None:
try:
# Only the vmachine was received, so base the sync on hypervisor id and pmachine
hypervisor = Factory.get(vmachine.pmachine)
VMachineController._logger.info('Syncing vMachine (name {0})'.format(vmachine.name))
vm_object = hypervisor.get_vm_agnostic_object(vmid=vmachine.hypervisor_id)
except Exception as ex:
VMachineController._logger.info('Error while fetching vMachine info from hypervisor: {0}'.format(str(ex)))
if vm_object is None and storagedriver_id is not None and vmachine.devicename is not None:
try:
# Storage Driver id was given, using the devicename instead (to allow hypervisor id updates
# which can be caused by re-adding a vm to the inventory)
pmachine = PMachineList.get_by_storagedriver_id(storagedriver_id)
storagedriver = StorageDriverList.get_by_storagedriver_id(storagedriver_id)
hypervisor = Factory.get(pmachine)
if not hypervisor.file_exists(storagedriver, hypervisor.clean_vmachine_filename(vmachine.devicename)):
return
vmachine.pmachine = pmachine
vmachine.save()
VMachineController._logger.info('Syncing vMachine (device {0}, ip {1}, mountpoint {2})'.format(vmachine.devicename,
storagedriver.storage_ip,
storagedriver.mountpoint))
vm_object = hypervisor.get_vm_object_by_devicename(devicename=vmachine.devicename,
ip=storagedriver.storage_ip,
mountpoint=storagedriver.mountpoint)
except Exception as ex:
VMachineController._logger.info('Error while fetching vMachine info from hypervisor using devicename: {0}'.format(str(ex)))
if vm_object is None:
message = 'Not enough information to sync vmachine'
VMachineController._logger.info('Error: {0}'.format(message))
raise RuntimeError(message)
VMachineController.update_vmachine_config(vmachine, vm_object)
def sync_with_hypervisor(vmachineguid, storagedriver_id=None):
"""
Updates a given vmachine with data retreived from a given pmachine
"""
try:
vmachine = VMachine(vmachineguid)
if storagedriver_id is None and vmachine.hypervisor_id is not None and vmachine.pmachine is not None:
# Only the vmachine was received, so base the sync on hypervisorid and pmachine
hypervisor = Factory.get(vmachine.pmachine)
logger.info('Syncing vMachine (name {})'.format(vmachine.name))
vm_object = hypervisor.get_vm_agnostic_object(
vmid=vmachine.hypervisor_id)
elif storagedriver_id is not None and vmachine.devicename is not None:
# Storage Driver id was given, using the devicename instead (to allow hypervisorid updates
# which can be caused by re-adding a vm to the inventory)
pmachine = PMachineList.get_by_storagedriver_id(
storagedriver_id)
storagedriver = StorageDriverList.get_by_storagedriver_id(
storagedriver_id)
hypervisor = Factory.get(pmachine)
if not hypervisor.file_exists(
vmachine.vpool,
hypervisor.clean_vmachine_filename(
vmachine.devicename)):
return
vmachine.pmachine = pmachine
vmachine.save()
logger.info(
'Syncing vMachine (device {}, ip {}, mtpt {})'.format(
vmachine.devicename, storagedriver.storage_ip,
storagedriver.mountpoint))
vm_object = hypervisor.get_vm_object_by_devicename(
devicename=vmachine.devicename,
ip=storagedriver.storage_ip,
mountpoint=storagedriver.mountpoint)
else:
message = 'Not enough information to sync vmachine'
logger.info('Error: {0}'.format(message))
raise RuntimeError(message)
except Exception as ex:
logger.info('Error while fetching vMachine info: {0}'.format(
str(ex)))
raise
if vm_object is None:
message = 'Could not retreive hypervisor vmachine object'
logger.info('Error: {0}'.format(message))
raise RuntimeError(message)
else:
VMachineController.update_vmachine_config(vmachine, vm_object)
def sync_with_mgmtcenter(disk, pmachine, storagedriver):
"""
Update disk info using management center (if available)
If no management center, try with hypervisor
If no info retrieved, use devicename
@param disk: vDisk hybrid (vdisk to be updated)
@param pmachine: pmachine hybrid (pmachine running the storagedriver)
@param storagedriver: storagedriver hybrid (storagedriver serving the vdisk)
"""
disk_name = None
if pmachine.mgmtcenter is not None:
logger.debug(
'Sync vdisk {0} with management center {1} on storagedriver {2}'
.format(disk.name, pmachine.mgmtcenter.name,
storagedriver.name))
mgmt = Factory.get_mgmtcenter(mgmt_center=pmachine.mgmtcenter)
volumepath = disk.devicename
mountpoint = storagedriver.mountpoint
devicepath = '{0}/{1}'.format(mountpoint, volumepath)
try:
disk_mgmt_center_info = mgmt.get_vdisk_model_by_devicepath(
devicepath)
if disk_mgmt_center_info is not None:
disk_name = disk_mgmt_center_info.get('name')
except Exception as ex:
logger.error(
'Failed to sync vdisk {0} with mgmt center {1}. {2}'.
format(disk.name, pmachine.mgmtcenter.name, str(ex)))
if disk_name is None:
logger.info('Sync vdisk with hypervisor on {0}'.format(
pmachine.name))
try:
hv = Factory.get(pmachine)
info = hv.get_vm_agnostic_object(disk.vmachine.hypervisor_id)
for disk in info['disks']:
if disk['filename'] == disk.devicename:
disk_name = disk['name']
break
except Exception as ex:
logger.error('Failed to get vdisk info from hypervisor. %s' %
ex)
if disk_name is None:
logger.info('No info retrieved from hypervisor, using devicename')
disk_name = disk.devicename.split('/')[-1].split('.')[0]
if disk_name is not None:
disk.name = disk_name
disk.save()
def resize_from_voldrv(volumename, volumesize, volumepath, storagedriver_id):
"""
Resize a disk
Triggered by volumedriver messages on the queue
@param volumepath: path on hypervisor to the volume
@param volumename: volume id of the disk
@param volumesize: size of the volume
"""
pmachine = PMachineList.get_by_storagedriver_id(storagedriver_id)
storagedriver = StorageDriverList.get_by_storagedriver_id(storagedriver_id)
hypervisor = Factory.get(pmachine)
volumepath = hypervisor.clean_backing_disk_filename(volumepath)
mutex = VolatileMutex('{}_{}'.format(volumename, volumepath))
try:
mutex.acquire(wait=30)
disk = VDiskList.get_vdisk_by_volume_id(volumename)
if disk is None:
disk = VDiskList.get_by_devicename_and_vpool(volumepath, storagedriver.vpool)
if disk is None:
disk = VDisk()
finally:
mutex.release()
disk.devicename = volumepath
disk.volume_id = volumename
disk.size = volumesize
disk.vpool = storagedriver.vpool
disk.save()
VDiskController.sync_with_mgmtcenter(disk, pmachine, storagedriver)
MDSServiceController.ensure_safety(disk)
def delete_from_voldrv(name, storagedriver_id):
"""
This method will delete a vmachine based on the name of the vmx given
"""
pmachine = PMachineList.get_by_storagedriver_id(storagedriver_id)
if pmachine.hvtype not in ['VMWARE', 'KVM']:
return
hypervisor = Factory.get(pmachine)
name = hypervisor.clean_vmachine_filename(name)
if pmachine.hvtype == 'VMWARE':
storagedriver = StorageDriverList.get_by_storagedriver_id(
storagedriver_id)
vpool = storagedriver.vpool
else:
vpool = None
vm = VMachineList.get_by_devicename_and_vpool(name, vpool)
if vm is not None:
MessageController.fire(MessageController.Type.EVENT, {
'type': 'vmachine_deleted',
'metadata': {
'name': vm.name
}
})
vm.delete(abandon=['vdisks'])
def update_vdisk_name(volume_id, old_name, new_name):
"""
Update a vDisk name using Management Center: set new name
"""
vdisk = None
for mgmt_center in MgmtCenterList.get_mgmtcenters():
mgmt = Factory.get_mgmtcenter(mgmt_center=mgmt_center)
try:
disk_info = mgmt.get_vdisk_device_info(volume_id)
device_path = disk_info['device_path']
vpool_name = disk_info['vpool_name']
vp = VPoolList.get_vpool_by_name(vpool_name)
file_name = os.path.basename(device_path)
vdisk = VDiskList.get_by_devicename_and_vpool(file_name, vp)
if vdisk:
break
except Exception as ex:
logger.info(
'Trying to get mgmt center failed for disk {0} with volume_id {1}. {2}'
.format(old_name, volume_id, ex))
if not vdisk:
logger.error('No vdisk found for name {0}'.format(old_name))
return
vpool = vdisk.vpool
mutex = VolatileMutex('{}_{}'.format(
old_name, vpool.guid if vpool is not None else 'none'))
try:
mutex.acquire(wait=5)
vdisk.name = new_name
vdisk.save()
finally:
mutex.release()
def update_vdisk_name(volume_id, old_name, new_name):
"""
Update a vDisk name using Management Center: set new name
"""
vdisk = None
for mgmt_center in MgmtCenterList.get_mgmtcenters():
mgmt = Factory.get_mgmtcenter(mgmt_center = mgmt_center)
try:
disk_info = mgmt.get_vdisk_device_info(volume_id)
device_path = disk_info['device_path']
vpool_name = disk_info['vpool_name']
vp = VPoolList.get_vpool_by_name(vpool_name)
file_name = os.path.basename(device_path)
vdisk = VDiskList.get_by_devicename_and_vpool(file_name, vp)
if vdisk:
break
except Exception as ex:
logger.info('Trying to get mgmt center failed for disk {0} with volume_id {1}. {2}'.format(old_name, volume_id, ex))
if not vdisk:
logger.error('No vdisk found for name {0}'.format(old_name))
return
vpool = vdisk.vpool
mutex = VolatileMutex('{}_{}'.format(old_name, vpool.guid if vpool is not None else 'none'))
try:
mutex.acquire(wait=5)
vdisk.name = new_name
vdisk.save()
finally:
mutex.release()
def resize_from_voldrv(volumename, volumesize, volumepath,
storagedriver_id):
"""
Resize a disk
Triggered by volumedriver messages on the queue
@param volumepath: path on hypervisor to the volume
@param volumename: volume id of the disk
@param volumesize: size of the volume
"""
pmachine = PMachineList.get_by_storagedriver_id(storagedriver_id)
storagedriver = StorageDriverList.get_by_storagedriver_id(
storagedriver_id)
hypervisor = Factory.get(pmachine)
volumepath = hypervisor.clean_backing_disk_filename(volumepath)
mutex = VolatileMutex('{}_{}'.format(volumename, volumepath))
try:
mutex.acquire(wait=30)
disk = VDiskList.get_vdisk_by_volume_id(volumename)
if disk is None:
disk = VDiskList.get_by_devicename_and_vpool(
volumepath, storagedriver.vpool)
if disk is None:
disk = VDisk()
finally:
mutex.release()
disk.devicename = volumepath
disk.volume_id = volumename
disk.size = volumesize
disk.vpool = storagedriver.vpool
disk.save()
def create(self, request):
"""
Creates a Management Center
"""
serializer = FullSerializer(
MgmtCenter,
instance=MgmtCenter(),
data=request.DATA,
allow_passwords=True)
if serializer.is_valid():
mgmt_center = serializer.object
duplicate = MgmtCenterList.get_by_ip(mgmt_center.ip)
if duplicate is None:
try:
mgmt_center_client = Factory.get_mgmtcenter(
mgmt_center=mgmt_center)
is_mgmt_center = mgmt_center_client.test_connection()
except Exception as ex:
logger.debug('Management center testing: {0}'.format(ex))
raise NotAcceptable('The given information is invalid.')
if not is_mgmt_center:
raise NotAcceptable(
'The given information is not for a Management center.'
)
mgmt_center.save()
return Response(
serializer.data, status=status.HTTP_201_CREATED)
else:
raise NotAcceptable(
'A Mangement Center with this ip already exists.')
else:
return Response(
serializer.errors, status=status.HTTP_400_BAD_REQUEST)
def create_new(diskname, size, storagedriver_guid):
"""
Create a new vdisk/volume using filesystem calls
:param diskname: name of the disk
:param size: size of the disk (GB)
:param storagedriver_guid: guid of the Storagedriver
:return: guid of the new disk
"""
logger.info('Creating new empty disk {0} of {1} GB'.format(diskname, size))
storagedriver = StorageDriver(storagedriver_guid)
vp_mountpoint = storagedriver.mountpoint
hypervisor = Factory.get(storagedriver.storagerouter.pmachine)
disk_path = hypervisor.clean_backing_disk_filename(hypervisor.get_disk_path(None, diskname))
location = os.path.join(vp_mountpoint, disk_path)
VDiskController.create_volume(location, size)
backoff = 1
timeout = 30 # seconds
start = time.time()
while time.time() < start + timeout:
vdisk = VDiskList.get_by_devicename_and_vpool(disk_path, storagedriver.vpool)
if vdisk is None:
logger.debug('Waiting for disk to be picked up by voldrv')
time.sleep(backoff)
backoff += 1
else:
return vdisk.guid
raise RuntimeError('Disk {0} was not created in {1} seconds.'.format(diskname, timeout))
def delete_from_voldrv(volumename, storagedriver_id):
"""
Delete a disk
Triggered by volumedriver messages on the queue
@param volumename: volume id of the disk
"""
_ = storagedriver_id # For logging purposes
disk = VDiskList.get_vdisk_by_volume_id(volumename)
if disk is not None:
mutex = VolatileMutex('{}_{}'.format(volumename, disk.devicename))
try:
mutex.acquire(wait=20)
pmachine = None
try:
pmachine = PMachineList.get_by_storagedriver_id(disk.storagedriver_id)
except RuntimeError as ex:
if 'could not be found' not in str(ex):
raise
# else: pmachine can't be loaded, because the volumedriver doesn't know about it anymore
if pmachine is not None:
limit = 5
hypervisor = Factory.get(pmachine)
exists = hypervisor.file_exists(disk.vpool, disk.devicename)
while limit > 0 and exists is True:
time.sleep(1)
exists = hypervisor.file_exists(disk.vpool, disk.devicename)
limit -= 1
if exists is True:
logger.info('Disk {0} still exists, ignoring delete'.format(disk.devicename))
return
logger.info('Delete disk {}'.format(disk.name))
disk.delete()
finally:
mutex.release()
def clone(diskguid, snapshotid, devicename, pmachineguid, machinename, machineguid=None):
"""
Clone a disk
"""
pmachine = PMachine(pmachineguid)
hypervisor = Factory.get(pmachine)
description = '{} {}'.format(machinename, devicename)
properties_to_clone = ['description', 'size', 'type', 'retentionpolicyguid',
'snapshotpolicyguid', 'autobackup']
vdisk = VDisk(diskguid)
location = hypervisor.get_backing_disk_path(machinename, devicename)
new_vdisk = VDisk()
new_vdisk.copy(vdisk, include=properties_to_clone)
new_vdisk.parent_vdisk = vdisk
new_vdisk.name = '{0}-clone'.format(vdisk.name)
new_vdisk.description = description
new_vdisk.devicename = hypervisor.clean_backing_disk_filename(location)
new_vdisk.parentsnapshot = snapshotid
new_vdisk.vmachine = VMachine(machineguid) if machineguid else vdisk.vmachine
new_vdisk.vpool = vdisk.vpool
new_vdisk.save()
try:
storagedriver = StorageDriverList.get_by_storagedriver_id(vdisk.storagedriver_id)
if storagedriver is None:
raise RuntimeError('Could not find StorageDriver with id {0}'.format(vdisk.storagedriver_id))
mds_service = MDSServiceController.get_preferred_mds(storagedriver.storagerouter, vdisk.vpool)
if mds_service is None:
raise RuntimeError('Could not find a MDS service')
logger.info('Clone snapshot {} of disk {} to location {}'.format(snapshotid, vdisk.name, location))
volume_id = vdisk.storagedriver_client.create_clone(
target_path=location,
metadata_backend_config=MDSMetaDataBackendConfig([MDSNodeConfig(address=str(mds_service.service.storagerouter.ip),
port=mds_service.service.ports[0])]),
parent_volume_id=str(vdisk.volume_id),
parent_snapshot_id=str(snapshotid),
node_id=str(vdisk.storagedriver_id)
)
except Exception as ex:
logger.error('Caught exception during clone, trying to delete the volume. {0}'.format(ex))
new_vdisk.delete()
VDiskController.delete_volume(location)
raise
new_vdisk.volume_id = volume_id
new_vdisk.save()
try:
MDSServiceController.ensure_safety(new_vdisk)
except Exception as ex:
logger.error('Caught exception during "ensure_safety" {0}'.format(ex))
return {'diskguid': new_vdisk.guid,
'name': new_vdisk.name,
'backingdevice': location}
def _hosts(self):
"""
Returns all hosts (not only those known to OVS) managed by the Management center
"""
mgmt_center = Factory.get_mgmtcenter(mgmt_center=self)
if mgmt_center is not None:
return mgmt_center.get_hosts()
else:
return {}
def _hosts(self):
"""
Returns all hosts (not only those known to OVS) managed by the Management center
"""
mgmt_center = Factory.get_mgmtcenter(mgmt_center=self)
if mgmt_center is not None:
return mgmt_center.get_hosts()
else:
return {}
def unconfigure_vpool_for_host(pmachine_guid, vpool_guid):
pmachine = PMachine(pmachine_guid)
mgmt_center_client = None
try:
mgmt_center_client = Factory.get_mgmtcenter(pmachine=pmachine)
except Exception as ex:
logger.error('Cannot get management center client: {0}'.format(ex))
if mgmt_center_client is not None:
logger.info('Unconfiguring vPool {0} on host {1}'.format(vpool_guid, pmachine.name))
mgmt_center_client.unconfigure_vpool_for_host(vpool_guid, False, pmachine.ip)
def sync_with_mgmtcenter(disk, pmachine, storagedriver):
"""
Update disk info using management center (if available)
If no management center, try with hypervisor
If no info retrieved, use devicename
@param disk: vDisk hybrid (vdisk to be updated)
@param pmachine: pmachine hybrid (pmachine running the storagedriver)
@param storagedriver: storagedriver hybrid (storagedriver serving the vdisk)
"""
disk_name = None
if pmachine.mgmtcenter is not None:
logger.debug('Sync vdisk {0} with management center {1} on storagedriver {2}'.format(disk.name, pmachine.mgmtcenter.name, storagedriver.name))
mgmt = Factory.get_mgmtcenter(mgmt_center = pmachine.mgmtcenter)
volumepath = disk.devicename
mountpoint = storagedriver.mountpoint
devicepath = '{0}/{1}'.format(mountpoint, volumepath)
try:
disk_mgmt_center_info = mgmt.get_vdisk_model_by_devicepath(devicepath)
if disk_mgmt_center_info is not None:
disk_name = disk_mgmt_center_info.get('name')
except Exception as ex:
logger.error('Failed to sync vdisk {0} with mgmt center {1}. {2}'.format(disk.name, pmachine.mgmtcenter.name, str(ex)))
if disk_name is None:
logger.info('Sync vdisk with hypervisor on {0}'.format(pmachine.name))
try:
hv = Factory.get(pmachine)
info = hv.get_vm_agnostic_object(disk.vmachine.hypervisor_id)
for disk in info['disks']:
if disk['filename'] == disk.devicename:
disk_name = disk['name']
break
except Exception as ex:
logger.error('Failed to get vdisk info from hypervisor. %s' % ex)
if disk_name is None:
logger.info('No info retrieved from hypervisor, using devicename')
disk_name = disk.devicename.split('/')[-1].split('.')[0]
if disk_name is not None:
disk.name = disk_name
disk.save()
def sync_with_hypervisor(vmachineguid, storagedriver_id=None):
"""
Updates a given vmachine with data retreived from a given pmachine
"""
try:
vmachine = VMachine(vmachineguid)
if storagedriver_id is None and vmachine.hypervisor_id is not None and vmachine.pmachine is not None:
# Only the vmachine was received, so base the sync on hypervisorid and pmachine
hypervisor = Factory.get(vmachine.pmachine)
logger.info('Syncing vMachine (name {})'.format(vmachine.name))
vm_object = hypervisor.get_vm_agnostic_object(vmid=vmachine.hypervisor_id)
elif storagedriver_id is not None and vmachine.devicename is not None:
# Storage Driver id was given, using the devicename instead (to allow hypervisorid updates
# which can be caused by re-adding a vm to the inventory)
pmachine = PMachineList.get_by_storagedriver_id(storagedriver_id)
storagedriver = StorageDriverList.get_by_storagedriver_id(storagedriver_id)
hypervisor = Factory.get(pmachine)
if not hypervisor.file_exists(vmachine.vpool, hypervisor.clean_vmachine_filename(vmachine.devicename)):
return
vmachine.pmachine = pmachine
vmachine.save()
logger.info('Syncing vMachine (device {}, ip {}, mtpt {})'.format(vmachine.devicename,
storagedriver.storage_ip,
storagedriver.mountpoint))
vm_object = hypervisor.get_vm_object_by_devicename(devicename=vmachine.devicename,
ip=storagedriver.storage_ip,
mountpoint=storagedriver.mountpoint)
else:
message = 'Not enough information to sync vmachine'
logger.info('Error: {0}'.format(message))
raise RuntimeError(message)
except Exception as ex:
logger.info('Error while fetching vMachine info: {0}'.format(str(ex)))
raise
if vm_object is None:
message = 'Could not retreive hypervisor vmachine object'
logger.info('Error: {0}'.format(message))
raise RuntimeError(message)
else:
VMachineController.update_vmachine_config(vmachine, vm_object)
def create_from_template(diskguid, machinename, devicename, pmachineguid, machineguid=None, storagedriver_guid=None):
"""
Create a disk from a template
@param parentdiskguid: guid of the disk
@param location: location where virtual device should be created (eg: myVM)
@param devicename: device file name for the disk (eg: mydisk-flat.vmdk)
@param machineguid: guid of the machine to assign disk to
@return diskguid: guid of new disk
"""
pmachine = PMachine(pmachineguid)
hypervisor = Factory.get(pmachine)
disk_path = hypervisor.get_disk_path(machinename, devicename)
description = '{} {}'.format(machinename, devicename)
properties_to_clone = [
'description', 'size', 'type', 'retentionpolicyid',
'snapshotpolicyid', 'vmachine', 'vpool']
disk = VDisk(diskguid)
if disk.vmachine and not disk.vmachine.is_vtemplate:
# Disk might not be attached to a vmachine, but still be a template
raise RuntimeError('The given disk does not belong to a template')
if storagedriver_guid is not None:
storagedriver_id = StorageDriver(storagedriver_guid).storagedriver_id
else:
storagedriver_id = disk.storagedriver_id
new_disk = VDisk()
new_disk.copy(disk, include=properties_to_clone)
new_disk.vpool = disk.vpool
new_disk.devicename = hypervisor.clean_backing_disk_filename(disk_path)
new_disk.parent_vdisk = disk
new_disk.name = '{}-clone'.format(disk.name)
new_disk.description = description
new_disk.vmachine = VMachine(machineguid) if machineguid else disk.vmachine
new_disk.save()
logger.info('Create disk from template {} to new disk {} to location {}'.format(
disk.name, new_disk.name, disk_path
))
try:
volume_id = disk.storagedriver_client.create_clone_from_template(disk_path, str(disk.volume_id), node_id=str(storagedriver_id))
new_disk.volume_id = volume_id
new_disk.save()
except Exception as ex:
logger.error('Clone disk on volumedriver level failed with exception: {0}'.format(str(ex)))
new_disk.delete()
raise
return {'diskguid': new_disk.guid, 'name': new_disk.name,
'backingdevice': disk_path}
def _hypervisor_status(self):
"""
Fetches the Status of the vMachine.
"""
if self.hypervisor_id is None or self.pmachine is None:
return 'UNKNOWN'
hv = hvFactory.get(self.pmachine)
try:
return hv.get_state(self.hypervisor_id)
except:
return 'UNKNOWN'
def _host_status(self):
"""
Returns the host status as reported by the management center (e.g. vCenter Server)
"""
mgmtcentersdk = hvFactory.get_mgmtcenter(self)
if mgmtcentersdk:
if self.hypervisor_id:
return mgmtcentersdk.get_host_status_by_pk(self.hypervisor_id)
if self.ip:
return mgmtcentersdk.get_host_status_by_ip(self.ip)
return 'UNKNOWN'
def _hypervisor_status(self):
"""
Fetches the Status of the vMachine.
"""
if self.hypervisor_id is None or self.pmachine is None:
return 'UNKNOWN'
hv = hvFactory.get(self.pmachine)
try:
return hv.get_state(self.hypervisor_id)
except:
return 'UNKNOWN'
def _host_status(self):
"""
Returns the host status as reported by the management center (e.g. vCenter Server)
"""
mgmtcentersdk = Factory.get_mgmtcenter(self)
if mgmtcentersdk:
if self.hypervisor_id:
return mgmtcentersdk.get_host_status_by_pk(self.hypervisor_id)
if self.ip:
return mgmtcentersdk.get_host_status_by_ip(self.ip)
return 'UNKNOWN'
def unconfigure_vpool_for_host(pmachine_guid, vpool_guid):
pmachine = PMachine(pmachine_guid)
mgmt_center_client = None
try:
mgmt_center_client = Factory.get_mgmtcenter(pmachine=pmachine)
except Exception as ex:
logger.error('Cannot get management center client: {0}'.format(ex))
if mgmt_center_client is not None:
logger.info('Unconfiguring vPool {0} on host {1}'.format(
vpool_guid, pmachine.name))
mgmt_center_client.unconfigure_vpool_for_host(
vpool_guid, False, pmachine.ip)
def is_host_configured(pmachine_guid):
pmachine = PMachine(pmachine_guid)
mgmt_center_client = None
try:
mgmt_center_client = Factory.get_mgmtcenter(pmachine=pmachine)
except Exception as ex:
if pmachine.mgmtcenter_guid:
logger.error('Cannot get management center client: {0}'.format(ex))
if mgmt_center_client is not None:
return mgmt_center_client.is_host_configured(pmachine.ip)
return False
def delete(machineguid):
"""
Delete a vmachine
@param machineguid: guid of the machine
"""
machine = VMachine(machineguid)
storagedriver_mountpoint, storagedriver_storage_ip = None, None
try:
storagedriver = [
storagedriver for storagedriver in machine.vpool.storagedrivers
if storagedriver.storagerouter.pmachine_guid ==
machine.pmachine_guid
][0]
storagedriver_mountpoint = storagedriver.mountpoint
storagedriver_storage_ip = storagedriver.storage_ip
except Exception as ex:
logger.debug(
'No mountpoint info could be retrieved. Reason: {0}'.format(
str(ex)))
storagedriver_mountpoint = None
disks_info = []
for vd in machine.vdisks:
for storagedriver in vd.vpool.storagedrivers:
if storagedriver.storagerouter.pmachine_guid == machine.pmachine_guid:
disks_info.append(
(storagedriver.mountpoint, vd.devicename))
if machine.pmachine: # Allow hypervisor id node, lookup strategy is hypervisor dependent
try:
hypervisor_id = machine.hypervisor_id
if machine.pmachine.hvtype == 'KVM':
hypervisor_id = machine.name # On KVM we can lookup the machine by name, not by id
hv = Factory.get(machine.pmachine)
hv.delete_vm(hypervisor_id, storagedriver_mountpoint,
storagedriver_storage_ip, machine.devicename,
disks_info, True)
except Exception as exception:
logger.error('Deletion of vm on hypervisor failed: {0}'.format(
str(exception)),
print_msg=True)
for disk in machine.vdisks:
logger.debug('Deleting disk {0} with guid: {1}'.format(
disk.name, disk.guid))
for junction in disk.mds_services:
junction.delete()
disk.delete()
logger.debug('Deleting vmachine {0} with guid {1}'.format(
machine.name, machine.guid))
machine.delete()
def clone(machineguid, timestamp, name):
"""
Clone a vmachine using the disk snapshot based on a snapshot timestamp
@param machineguid: guid of the machine to clone
@param timestamp: timestamp of the disk snapshots to use for the clone
@param name: name for the new machine
"""
machine = VMachine(machineguid)
disks = {}
for snapshot in machine.snapshots:
if snapshot['timestamp'] == timestamp:
for diskguid, snapshotguid in snapshot['snapshots'].iteritems(
):
disks[diskguid] = snapshotguid
new_machine = VMachine()
new_machine.copy(machine)
new_machine.name = name
new_machine.pmachine = machine.pmachine
new_machine.save()
new_disk_guids = []
disks_by_order = sorted(machine.vdisks, key=lambda x: x.order)
for currentDisk in disks_by_order:
if machine.is_vtemplate and currentDisk.templatesnapshot:
snapshotid = currentDisk.templatesnapshot
else:
snapshotid = disks[currentDisk.guid]
prefix = '%s-clone' % currentDisk.name
result = VDiskController.clone(
diskguid=currentDisk.guid,
snapshotid=snapshotid,
devicename=prefix,
pmachineguid=new_machine.pmachine_guid,
machinename=new_machine.name,
machineguid=new_machine.guid)
new_disk_guids.append(result['diskguid'])
hv = Factory.get(machine.pmachine)
try:
result = hv.clone_vm(machine.hypervisor_id, name, disks, None,
True)
except:
VMachineController.delete(machineguid=new_machine.guid)
raise
new_machine.hypervisor_id = result
new_machine.save()
return new_machine.guid
def is_host_configured(pmachine_guid):
pmachine = PMachine(pmachine_guid)
mgmt_center_client = None
try:
mgmt_center_client = Factory.get_mgmtcenter(pmachine=pmachine)
except Exception as ex:
if pmachine.mgmtcenter_guid:
MgmtCenterController._logger.error(
'Cannot get management center client: {0}'.format(ex))
if mgmt_center_client is not None:
return mgmt_center_client.is_host_configured(pmachine.ip)
return False
def clone(diskguid,
snapshotid,
devicename,
pmachineguid,
machinename,
machineguid=None,
**kwargs):
"""
Clone a disk
@param location: location where virtual device should be created (eg: myVM)
@param devicename: device file name for the disk (eg: mydisk-flat.vmdk)
@param parentdiskguid: guid of the disk
@param snapshotid: guid of the snapshot
@param machineguid: guid of the machine to assign disk to
"""
_ = kwargs
pmachine = PMachine(pmachineguid)
hypervisor = Factory.get(pmachine)
description = '{} {}'.format(machinename, devicename)
properties_to_clone = [
'description', 'size', 'type', 'retentionpolicyguid',
'snapshotpolicyguid', 'autobackup'
]
new_disk = VDisk()
disk = VDisk(diskguid)
_log = 'Clone snapshot {} of disk {} to location {}'
_location = hypervisor.get_backing_disk_path(machinename, devicename)
_id = '{}'.format(disk.volume_id)
_snap = '{}'.format(snapshotid)
logger.info(_log.format(_snap, disk.name, _location))
volume_id = disk.storagedriver_client.create_clone(
_location, _id, _snap)
new_disk.copy(disk, include=properties_to_clone)
new_disk.parent_vdisk = disk
new_disk.name = '{}-clone'.format(disk.name)
new_disk.description = description
new_disk.volume_id = volume_id
new_disk.devicename = hypervisor.clean_backing_disk_filename(_location)
new_disk.parentsnapshot = snapshotid
new_disk.vmachine = VMachine(
machineguid) if machineguid else disk.vmachine
new_disk.vpool = disk.vpool
new_disk.save()
return {
'diskguid': new_disk.guid,
'name': new_disk.name,
'backingdevice': _location
}
def unconfigure_host(pmachine_guid, mgmtcenter_guid, update_link):
pmachine = PMachine(pmachine_guid)
mgmt_center = MgmtCenter(mgmtcenter_guid)
mgmt_center_client = None
try:
mgmt_center_client = Factory.get_mgmtcenter(mgmt_center=mgmt_center)
except Exception as ex:
logger.error('Cannot get management center client: {0}'.format(ex))
if mgmt_center_client is not None:
logger.info('Unconfiguring host {0} from management center {1}'.format(pmachine.name, mgmt_center.name))
mgmt_center_client.unconfigure_host(pmachine.ip)
if update_link is True:
pmachine.mgmtcenter = None
pmachine.save()
def clone(machineguid, timestamp, name):
"""
Clone a vmachine using the disk snapshot based on a snapshot timestamp
@param machineguid: guid of the machine to clone
@param timestamp: timestamp of the disk snapshots to use for the clone
@param name: name for the new machine
"""
machine = VMachine(machineguid)
disks = {}
for snapshot in machine.snapshots:
if snapshot['timestamp'] == timestamp:
for diskguid, snapshotguid in snapshot['snapshots'].iteritems():
disks[diskguid] = snapshotguid
new_machine = VMachine()
new_machine.copy(machine)
new_machine.name = name
new_machine.pmachine = machine.pmachine
new_machine.save()
new_disk_guids = []
disks_by_order = sorted(machine.vdisks, key=lambda x: x.order)
for currentDisk in disks_by_order:
if machine.is_vtemplate and currentDisk.templatesnapshot:
snapshotid = currentDisk.templatesnapshot
else:
snapshotid = disks[currentDisk.guid]
prefix = '%s-clone' % currentDisk.name
result = VDiskController.clone(diskguid=currentDisk.guid,
snapshotid=snapshotid,
devicename=prefix,
pmachineguid=new_machine.pmachine_guid,
machinename=new_machine.name,
machineguid=new_machine.guid)
new_disk_guids.append(result['diskguid'])
hv = Factory.get(machine.pmachine)
try:
result = hv.clone_vm(machine.hypervisor_id, name, disks, None, True)
except:
VMachineController.delete(machineguid=new_machine.guid)
raise
new_machine.hypervisor_id = result
new_machine.save()
return new_machine.guid
def sync_with_hypervisor(vpool_guid):
"""
Syncs all vMachines of a given vPool with the hypervisor
"""
vpool = VPool(vpool_guid)
for storagedriver in vpool.storagedrivers:
pmachine = storagedriver.storagerouter.pmachine
hypervisor = Factory.get(pmachine)
for vm_object in hypervisor.get_vms_by_nfs_mountinfo(storagedriver.storage_ip, storagedriver.mountpoint):
search_vpool = None if pmachine.hvtype == 'KVM' else vpool
vmachine = VMachineList.get_by_devicename_and_vpool(
devicename=vm_object['backing']['filename'],
vpool=search_vpool
)
VMachineController.update_vmachine_config(vmachine, vm_object, pmachine)
def sync_with_hypervisor(vpool_guid):
"""
Syncs all vMachines of a given vPool with the hypervisor
:param vpool_guid: Guid of the vPool to synchronize
"""
vpool = VPool(vpool_guid)
if vpool.status != VPool.STATUSES.RUNNING:
raise ValueError('Synchronizing with hypervisor is only allowed if your vPool is in {0} status'.format(VPool.STATUSES.RUNNING))
for storagedriver in vpool.storagedrivers:
pmachine = storagedriver.storagerouter.pmachine
hypervisor = Factory.get(pmachine)
for vm_object in hypervisor.get_vms_by_nfs_mountinfo(storagedriver.storage_ip, storagedriver.mountpoint):
search_vpool = None if pmachine.hvtype == 'KVM' else vpool
vmachine = VMachineList.get_by_devicename_and_vpool(devicename=vm_object['backing']['filename'],
vpool=search_vpool)
VMachineController.update_vmachine_config(vmachine, vm_object, pmachine)
def configure_host(pmachine_guid, mgmtcenter_guid, update_link):
pmachine = PMachine(pmachine_guid)
mgmt_center = MgmtCenter(mgmtcenter_guid)
mgmt_center_client = None
try:
mgmt_center_client = Factory.get_mgmtcenter(
mgmt_center=mgmt_center)
except Exception as ex:
logger.error('Cannot get management center client: {0}'.format(ex))
if mgmt_center_client is not None:
logger.info('Configuring host {0} on management center {1}'.format(
pmachine.name, mgmt_center.name))
mgmt_center_client.configure_host(pmachine.ip)
if update_link is True:
pmachine.mgmtcenter = mgmt_center
pmachine.save()
def test_connection(mgmt_center_guid):
"""
Test management center connection
"""
mgmt_center = MgmtCenter(mgmt_center_guid)
try:
mgmt_center_client = Factory.get_mgmtcenter(mgmt_center=mgmt_center)
except Exception as ex:
logger.error('Cannot get mgmt center client: {0}'.format(ex))
return None
try:
is_mgmt_center = mgmt_center_client.test_connection()
except Exception as ex:
logger.error('Cannot test connection: {0}'.format(ex))
return False
return is_mgmt_center
def test_connection(mgmt_center_guid):
"""
Test mgmtcenter connection
"""
mgmt_center = MgmtCenter(mgmt_center_guid)
try:
mgmt_center_client = Factory.get_mgmtcenter(
mgmt_center=mgmt_center)
except Exception as ex:
logger.error('Cannot get mgmt center client: %s' % ex)
return None
try:
is_mgmt_center = mgmt_center_client.test_connection()
except Exception as ex:
logger.error('Cannot test connection: %s' % ex)
return False
return is_mgmt_center
def rename_from_voldrv(old_name, new_name, storagedriver_id):
"""
This machine will handle the rename of a vmx file
:param old_name: Old name of vmx
:param new_name: New name for the vmx
:param storagedriver_id: Storage Driver hosting the vmachine
"""
pmachine = PMachineList.get_by_storagedriver_id(storagedriver_id)
if pmachine.hvtype not in ['VMWARE', 'KVM']:
return
hypervisor = Factory.get(pmachine)
if pmachine.hvtype == 'VMWARE':
storagedriver = StorageDriverList.get_by_storagedriver_id(
storagedriver_id)
vpool = storagedriver.vpool
else:
vpool = None
old_name = hypervisor.clean_vmachine_filename(old_name)
new_name = hypervisor.clean_vmachine_filename(new_name)
scenario = hypervisor.get_rename_scenario(old_name, new_name)
if scenario == 'RENAME':
# Most likely a change from path. Updating path
vm = VMachineList.get_by_devicename_and_vpool(old_name, vpool)
if vm is not None:
vm.devicename = new_name
vm.save()
elif scenario == 'UPDATE':
vm = VMachineList.get_by_devicename_and_vpool(new_name, vpool)
if vm is None:
# The vMachine doesn't seem to exist, so it's likely the create didn't came trough
# Let's create it anyway
VMachineController.update_from_voldrv(
new_name, storagedriver_id=storagedriver_id)
vm = VMachineList.get_by_devicename_and_vpool(new_name, vpool)
if vm is None:
raise RuntimeError(
'Could not create vMachine on rename. Aborting.')
try:
VMachineController.sync_with_hypervisor(
vm.guid, storagedriver_id=storagedriver_id)
vm.status = 'SYNC'
except:
vm.status = 'SYNC_NOK'
vm.save()
def clone(diskguid, snapshotid, devicename, pmachineguid, machinename, machineguid=None):
"""
Clone a disk
"""
pmachine = PMachine(pmachineguid)
hypervisor = Factory.get(pmachine)
description = "{} {}".format(machinename, devicename)
properties_to_clone = ["description", "size", "type", "retentionpolicyguid", "snapshotpolicyguid", "autobackup"]
vdisk = VDisk(diskguid)
location = hypervisor.get_backing_disk_path(machinename, devicename)
new_vdisk = VDisk()
new_vdisk.copy(vdisk, include=properties_to_clone)
new_vdisk.parent_vdisk = vdisk
new_vdisk.name = "{0}-clone".format(vdisk.name)
new_vdisk.description = description
new_vdisk.devicename = hypervisor.clean_backing_disk_filename(location)
new_vdisk.parentsnapshot = snapshotid
new_vdisk.vmachine = VMachine(machineguid) if machineguid else vdisk.vmachine
new_vdisk.vpool = vdisk.vpool
new_vdisk.save()
storagedriver = StorageDriverList.get_by_storagedriver_id(vdisk.storagedriver_id)
if storagedriver is None:
raise RuntimeError("Could not find StorageDriver with id {0}".format(vdisk.storagedriver_id))
mds_service = MDSServiceController.get_preferred_mds(storagedriver.storagerouter, vdisk.vpool)
if mds_service is None:
raise RuntimeError("Could not find a MDS service")
logger.info("Clone snapshot {} of disk {} to location {}".format(snapshotid, vdisk.name, location))
volume_id = vdisk.storagedriver_client.create_clone(
target_path=location,
metadata_backend_config=MDSMetaDataBackendConfig(
[MDSNodeConfig(address=str(mds_service.service.storagerouter.ip), port=mds_service.service.ports[0])]
),
parent_volume_id=str(vdisk.volume_id),
parent_snapshot_id=str(snapshotid),
node_id=str(vdisk.storagedriver_id),
)
new_vdisk.volume_id = volume_id
new_vdisk.save()
MDSServiceController.ensure_safety(new_vdisk)
return {"diskguid": new_vdisk.guid, "name": new_vdisk.name, "backingdevice": location}
def rename_from_voldrv(volumename, volume_old_path, volume_new_path, storagedriver_id):
"""
Rename a disk
Triggered by volumedriver messages
@param volumename: volume id of the disk
@param volume_old_path: old path on hypervisor to the volume
@param volume_new_path: new path on hypervisor to the volume
"""
pmachine = PMachineList.get_by_storagedriver_id(storagedriver_id)
hypervisor = Factory.get(pmachine)
volume_old_path = hypervisor.clean_backing_disk_filename(volume_old_path)
volume_new_path = hypervisor.clean_backing_disk_filename(volume_new_path)
disk = VDiskList.get_vdisk_by_volume_id(volumename)
if disk:
logger.info("Move disk {} from {} to {}".format(disk.name, volume_old_path, volume_new_path))
disk.devicename = volume_new_path
disk.save()
def update_vmachine_name(instance_id, old_name, new_name):
"""
Update a vMachine name: find vmachine by management center instance id, set new name
:param instance_id: ID for the virtual machine known by management center
:param old_name: Old name of the virtual machine
:param new_name: New name for the virtual machine
"""
vmachine = None
for mgmt_center in MgmtCenterList.get_mgmtcenters():
mgmt = Factory.get_mgmtcenter(mgmt_center=mgmt_center)
try:
machine_info = mgmt.get_vmachine_device_info(instance_id)
file_name = machine_info['file_name']
host_name = machine_info['host_name']
vpool_name = machine_info['vpool_name']
storage_router = StorageRouterList.get_by_name(host_name)
machine_id = storage_router.machine_id
device_name = '{0}/{1}'.format(machine_id, file_name)
vp = VPoolList.get_vpool_by_name(vpool_name)
vmachine = VMachineList.get_by_devicename_and_vpool(
device_name, vp)
if vmachine:
break
vmachine = VMachineList.get_by_devicename_and_vpool(
device_name, None)
if vmachine:
break
except Exception as ex:
logger.info(
'Trying to get mgmt center failed for vmachine {0}. {1}'.
format(old_name, ex))
if not vmachine:
logger.error('No vmachine found for name {0}'.format(old_name))
return
vpool = vmachine.vpool
mutex = VolatileMutex('{0}_{1}'.format(
old_name, vpool.guid if vpool is not None else 'none'))
try:
mutex.acquire(wait=5)
vmachine.name = new_name
vmachine.save()
finally:
mutex.release()
def test_connection(mgmt_center_guid):
"""
Test management center connection
"""
mgmt_center = MgmtCenter(mgmt_center_guid)
try:
mgmt_center_client = Factory.get_mgmtcenter(
mgmt_center=mgmt_center)
except Exception as ex:
MgmtCenterController._logger.error(
'Cannot get mgmt center client: {0}'.format(ex))
return None
try:
is_mgmt_center = mgmt_center_client.test_connection()
except Exception as ex:
MgmtCenterController._logger.error(
'Cannot test connection: {0}'.format(ex))
return False
return is_mgmt_center
def delete_from_voldrv(volumename, storagedriver_id):
"""
Delete a disk
Triggered by volumedriver messages on the queue
@param volumename: volume id of the disk
"""
_ = storagedriver_id # For logging purposes
disk = VDiskList.get_vdisk_by_volume_id(volumename)
if disk is not None:
mutex = VolatileMutex('{}_{}'.format(volumename, disk.devicename))
try:
mutex.acquire(wait=20)
pmachine = None
try:
pmachine = PMachineList.get_by_storagedriver_id(
disk.storagedriver_id)
except RuntimeError as ex:
if 'could not be found' not in str(ex):
raise
# else: pmachine can't be loaded, because the volumedriver doesn't know about it anymore
if pmachine is not None:
limit = 5
storagedriver = StorageDriverList.get_by_storagedriver_id(
storagedriver_id)
hypervisor = Factory.get(pmachine)
exists = hypervisor.file_exists(storagedriver,
disk.devicename)
while limit > 0 and exists is True:
time.sleep(1)
exists = hypervisor.file_exists(
storagedriver, disk.devicename)
limit -= 1
if exists is True:
logger.info(
'Disk {0} still exists, ignoring delete'.format(
disk.devicename))
return
logger.info('Delete disk {}'.format(disk.name))
for mds_service in disk.mds_services:
mds_service.delete()
disk.delete()
finally:
mutex.release()
def rename_from_voldrv(old_name, new_name, storagedriver_id):
"""
This machine will handle the rename of a vmx file
:param old_name: Old name of vmx
:param new_name: New name for the vmx
:param storagedriver_id: Storage Driver hosting the vmachine
"""
pmachine = PMachineList.get_by_storagedriver_id(storagedriver_id)
if pmachine.hvtype not in ['VMWARE', 'KVM']:
return
hypervisor = Factory.get(pmachine)
if pmachine.hvtype == 'VMWARE':
storagedriver = StorageDriverList.get_by_storagedriver_id(storagedriver_id)
vpool = storagedriver.vpool
else:
vpool = None
old_name = hypervisor.clean_vmachine_filename(old_name)
new_name = hypervisor.clean_vmachine_filename(new_name)
scenario = hypervisor.get_rename_scenario(old_name, new_name)
if scenario == 'RENAME':
# Most likely a change from path. Updating path
vm = VMachineList.get_by_devicename_and_vpool(old_name, vpool)
if vm is not None:
vm.devicename = new_name
vm.save()
elif scenario == 'UPDATE':
vm = VMachineList.get_by_devicename_and_vpool(new_name, vpool)
if vm is None:
# The vMachine doesn't seem to exist, so it's likely the create didn't came trough
# Let's create it anyway
VMachineController.update_from_voldrv(new_name, storagedriver_id=storagedriver_id)
vm = VMachineList.get_by_devicename_and_vpool(new_name, vpool)
if vm is None:
raise RuntimeError('Could not create vMachine on rename. Aborting.')
try:
VMachineController.sync_with_hypervisor(vm.guid, storagedriver_id=storagedriver_id)
vm.status = 'SYNC'
except:
vm.status = 'SYNC_NOK'
vm.save()
def delete_from_voldrv(name, storagedriver_id):
"""
This method will delete a vmachine based on the name of the vmx given
"""
pmachine = PMachineList.get_by_storagedriver_id(storagedriver_id)
if pmachine.hvtype not in ['VMWARE', 'KVM']:
return
hypervisor = Factory.get(pmachine)
name = hypervisor.clean_vmachine_filename(name)
if pmachine.hvtype == 'VMWARE':
storagedriver = StorageDriverList.get_by_storagedriver_id(storagedriver_id)
vpool = storagedriver.vpool
else:
vpool = None
vm = VMachineList.get_by_devicename_and_vpool(name, vpool)
if vm is not None:
MessageController.fire(MessageController.Type.EVENT, {'type': 'vmachine_deleted',
'metadata': {'name': vm.name}})
vm.delete(abandon=['vdisks'])
def sync_with_hypervisor(vpool_guid):
"""
Syncs all vMachines of a given vPool with the hypervisor
:param vpool_guid: Guid of the vPool to synchronize
"""
vpool = VPool(vpool_guid)
if vpool.status != VPool.STATUSES.RUNNING:
raise ValueError(
'Synchronizing with hypervisor is only allowed if your vPool is in {0} status'
.format(VPool.STATUSES.RUNNING))
for storagedriver in vpool.storagedrivers:
pmachine = storagedriver.storagerouter.pmachine
hypervisor = Factory.get(pmachine)
for vm_object in hypervisor.get_vms_by_nfs_mountinfo(
storagedriver.storage_ip, storagedriver.mountpoint):
search_vpool = None if pmachine.hvtype == 'KVM' else vpool
vmachine = VMachineList.get_by_devicename_and_vpool(
devicename=vm_object['backing']['filename'],
vpool=search_vpool)
VMachineController.update_vmachine_config(
vmachine, vm_object, pmachine)
def delete(machineguid):
"""
Delete a vmachine
@param machineguid: guid of the machine
"""
machine = VMachine(machineguid)
storagedriver_mountpoint, storagedriver_storage_ip = None, None
try:
storagedriver = [storagedriver for storagedriver in machine.vpool.storagedrivers if storagedriver.storagerouter.pmachine_guid == machine.pmachine_guid][0]
storagedriver_mountpoint = storagedriver.mountpoint
storagedriver_storage_ip = storagedriver.storage_ip
except Exception as ex:
VMachineController._logger.debug('No mountpoint info could be retrieved. Reason: {0}'.format(str(ex)))
storagedriver_mountpoint = None
disks_info = []
for vd in machine.vdisks:
for storagedriver in vd.vpool.storagedrivers:
if storagedriver.storagerouter.pmachine_guid == machine.pmachine_guid:
disks_info.append((storagedriver.mountpoint, vd.devicename))
if machine.pmachine: # Allow hypervisor id node, lookup strategy is hypervisor dependent
try:
hypervisor_id = machine.hypervisor_id
if machine.pmachine.hvtype == 'KVM':
hypervisor_id = machine.name # On KVM we can lookup the machine by name, not by id
hv = Factory.get(machine.pmachine)
hv.delete_vm(hypervisor_id, storagedriver_mountpoint, storagedriver_storage_ip, machine.devicename, disks_info, True)
except Exception as exception:
VMachineController._logger.error('Deletion of vm on hypervisor failed: {0}'.format(str(exception)), print_msg=True)
for disk in machine.vdisks:
VMachineController._logger.debug('Deleting disk {0} with guid: {1}'.format(disk.name, disk.guid))
for junction in disk.mds_services:
junction.delete()
disk.delete()
VMachineController._logger.debug('Deleting vmachine {0} with guid {1}'.format(machine.name, machine.guid))
machine.delete()
def rename_from_voldrv(volumename, volume_old_path, volume_new_path,
storagedriver_id):
"""
Rename a disk
Triggered by volumedriver messages
@param volumename: volume id of the disk
@param volume_old_path: old path on hypervisor to the volume
@param volume_new_path: new path on hypervisor to the volume
"""
pmachine = PMachineList.get_by_storagedriver_id(storagedriver_id)
hypervisor = Factory.get(pmachine)
volume_old_path = hypervisor.clean_backing_disk_filename(
volume_old_path)
volume_new_path = hypervisor.clean_backing_disk_filename(
volume_new_path)
disk = VDiskList.get_vdisk_by_volume_id(volumename)
if disk:
logger.info('Move disk {} from {} to {}'.format(
disk.name, volume_old_path, volume_new_path))
disk.devicename = volume_new_path
disk.save()
def update_vmachine_name(instance_id, old_name, new_name):
"""
Update a vMachine name: find vmachine by management center instance id, set new name
:param instance_id: ID for the virtual machine known by management center
:param old_name: Old name of the virtual machine
:param new_name: New name for the virtual machine
"""
vmachine = None
for mgmt_center in MgmtCenterList.get_mgmtcenters():
mgmt = Factory.get_mgmtcenter(mgmt_center = mgmt_center)
try:
machine_info = mgmt.get_vmachine_device_info(instance_id)
file_name = machine_info['file_name']
host_name = machine_info['host_name']
vpool_name = machine_info['vpool_name']
storage_router = StorageRouterList.get_by_name(host_name)
machine_id = storage_router.machine_id
device_name = '{0}/{1}'.format(machine_id, file_name)
vp = VPoolList.get_vpool_by_name(vpool_name)
vmachine = VMachineList.get_by_devicename_and_vpool(device_name, vp)
if vmachine:
break
vmachine = VMachineList.get_by_devicename_and_vpool(device_name, None)
if vmachine:
break
except Exception as ex:
VMachineController._logger.info('Trying to get mgmt center failed for vmachine {0}. {1}'.format(old_name, ex))
if not vmachine:
VMachineController._logger.error('No vmachine found for name {0}'.format(old_name))
return
vpool = vmachine.vpool
mutex = volatile_mutex('{0}_{1}'.format(old_name, vpool.guid if vpool is not None else 'none'))
try:
mutex.acquire(wait=5)
vmachine.name = new_name
vmachine.save()
finally:
mutex.release()
def clone(diskguid, snapshotid, devicename, pmachineguid, machinename, machineguid=None, **kwargs):
"""
Clone a disk
@param location: location where virtual device should be created (eg: myVM)
@param devicename: device file name for the disk (eg: mydisk-flat.vmdk)
@param parentdiskguid: guid of the disk
@param snapshotid: guid of the snapshot
@param machineguid: guid of the machine to assign disk to
"""
_ = kwargs
pmachine = PMachine(pmachineguid)
hypervisor = Factory.get(pmachine)
description = '{} {}'.format(machinename, devicename)
properties_to_clone = ['description', 'size', 'type', 'retentionpolicyguid',
'snapshotpolicyguid', 'autobackup']
new_disk = VDisk()
disk = VDisk(diskguid)
_log = 'Clone snapshot {} of disk {} to location {}'
_location = hypervisor.get_backing_disk_path(machinename, devicename)
_id = '{}'.format(disk.volume_id)
_snap = '{}'.format(snapshotid)
logger.info(_log.format(_snap, disk.name, _location))
volume_id = disk.storagedriver_client.create_clone(_location, _id, _snap)
new_disk.copy(disk, include=properties_to_clone)
new_disk.parent_vdisk = disk
new_disk.name = '{}-clone'.format(disk.name)
new_disk.description = description
new_disk.volume_id = volume_id
new_disk.devicename = hypervisor.clean_backing_disk_filename(_location)
new_disk.parentsnapshot = snapshotid
new_disk.vmachine = VMachine(machineguid) if machineguid else disk.vmachine
new_disk.vpool = disk.vpool
new_disk.save()
return {'diskguid': new_disk.guid,
'name': new_disk.name,
'backingdevice': _location}
def create(self, request):
"""
Creates a Management Center
"""
serializer = FullSerializer(MgmtCenter, instance=MgmtCenter(), data=request.DATA, allow_passwords=True)
if serializer.is_valid():
mgmt_center = serializer.object
duplicate = MgmtCenterList.get_by_ip(mgmt_center.ip)
if duplicate is None:
try:
mgmt_center_client = Factory.get_mgmtcenter(mgmt_center=mgmt_center)
is_mgmt_center = mgmt_center_client.test_connection()
except Exception as ex:
logger.debug('Management center testing: {0}'.format(ex))
raise NotAcceptable('The given information is invalid.')
if not is_mgmt_center:
raise NotAcceptable('The given information is not for a Management center.')
mgmt_center.save()
return Response(serializer.data, status=status.HTTP_201_CREATED)
else:
raise NotAcceptable('A Mangement Center with this ip already exists.')
else:
return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
def update_from_voldrv(name, storagedriver_id):
"""
This method will update/create a vmachine based on a given vmx/xml file
"""
pmachine = PMachineList.get_by_storagedriver_id(storagedriver_id)
if pmachine.hvtype not in ['VMWARE', 'KVM']:
return
hypervisor = Factory.get(pmachine)
name = hypervisor.clean_vmachine_filename(name)
storagedriver = StorageDriverList.get_by_storagedriver_id(
storagedriver_id)
vpool = storagedriver.vpool
machine_ids = [
storagedriver.storagerouter.machine_id
for storagedriver in vpool.storagedrivers
]
if hypervisor.should_process(name, machine_ids=machine_ids):
if pmachine.hvtype == 'VMWARE':
storagedriver = StorageDriverList.get_by_storagedriver_id(
storagedriver_id)
vpool = storagedriver.vpool
else:
vpool = None
pmachine = PMachineList.get_by_storagedriver_id(storagedriver_id)
mutex = VolatileMutex('{}_{}'.format(
name, vpool.guid if vpool is not None else 'none'))
try:
mutex.acquire(wait=120)
limit = 5
exists = hypervisor.file_exists(storagedriver, name)
while limit > 0 and exists is False:
time.sleep(1)
exists = hypervisor.file_exists(storagedriver, name)
limit -= 1
if exists is False:
logger.info(
'Could not locate vmachine with name {0} on vpool {1}'.
format(name, vpool.name))
vmachine = VMachineList.get_by_devicename_and_vpool(
name, vpool)
if vmachine is not None:
VMachineController.delete_from_voldrv(
name, storagedriver_id=storagedriver_id)
return
finally:
mutex.release()
try:
mutex.acquire(wait=5)
vmachine = VMachineList.get_by_devicename_and_vpool(
name, vpool)
if not vmachine:
vmachine = VMachine()
vmachine.vpool = vpool
vmachine.pmachine = pmachine
vmachine.status = 'CREATED'
vmachine.devicename = name
vmachine.save()
finally:
mutex.release()
if pmachine.hvtype == 'KVM':
try:
VMachineController.sync_with_hypervisor(
vmachine.guid, storagedriver_id=storagedriver_id)
vmachine.status = 'SYNC'
except:
vmachine.status = 'SYNC_NOK'
vmachine.save()
else:
logger.info('Ignored invalid file {0}'.format(name))
def create_from_template(name,
machineguid,
pmachineguid,
description=None):
"""
Create a new vmachine using an existing vmachine template
@param machineguid: guid of the template vmachine
@param name: name of new vmachine
@param pmachineguid: guid of hypervisor to create new vmachine on
@return: guid of the newly created vmachine | False on any failure
"""
template_vm = VMachine(machineguid)
if not template_vm.is_vtemplate:
return False
target_pm = PMachine(pmachineguid)
target_hypervisor = Factory.get(target_pm)
storagerouters = [
sr for sr in StorageRouterList.get_storagerouters()
if sr.pmachine_guid == target_pm.guid
]
if len(storagerouters) == 1:
target_storagerouter = storagerouters[0]
else:
raise ValueError(
'Pmachine {} has no StorageRouter assigned to it'.format(
pmachineguid))
routing_key = "sr.{0}".format(target_storagerouter.machine_id)
vpool = None
vpool_guids = set()
if template_vm.vpool is not None:
vpool = template_vm.vpool
vpool_guids.add(vpool.guid)
for disk in template_vm.vdisks:
vpool = disk.vpool
vpool_guids.add(vpool.guid)
if len(vpool_guids) != 1:
raise RuntimeError(
'Only 1 vpool supported on template disk(s) - {0} found!'.
format(len(vpool_guids)))
if not template_vm.pmachine.hvtype == target_pm.hvtype:
raise RuntimeError('Source and target hypervisor not identical')
# Currently, only one vPool is supported, so we can just use whatever the `vpool` variable above
# was set to as 'the' vPool for the code below. This obviously will have to change once vPool mixes
# are supported.
target_storagedriver = None
source_storagedriver = None
for vpool_storagedriver in vpool.storagedrivers:
if vpool_storagedriver.storagerouter.pmachine_guid == target_pm.guid:
target_storagedriver = vpool_storagedriver
if vpool_storagedriver.storagerouter.pmachine_guid == template_vm.pmachine_guid:
source_storagedriver = vpool_storagedriver
if target_storagedriver is None:
raise RuntimeError('Volume not served on target hypervisor')
source_hv = Factory.get(template_vm.pmachine)
target_hv = Factory.get(target_pm)
if not source_hv.is_datastore_available(
source_storagedriver.storage_ip,
source_storagedriver.mountpoint):
raise RuntimeError('Datastore unavailable on source hypervisor')
if not target_hv.is_datastore_available(
target_storagedriver.storage_ip,
target_storagedriver.mountpoint):
raise RuntimeError('Datastore unavailable on target hypervisor')
source_vm = source_hv.get_vm_object(template_vm.hypervisor_id)
if not source_vm:
raise RuntimeError('VM with key reference {0} not found'.format(
template_vm.hypervisor_id))
name_duplicates = VMachineList.get_vmachine_by_name(name)
if name_duplicates is not None and len(name_duplicates) > 0:
raise RuntimeError(
'A vMachine with name {0} already exists'.format(name))
vm_path = target_hypervisor.get_vmachine_path(
name, target_storagedriver.storagerouter.machine_id)
new_vm = VMachine()
new_vm.copy(template_vm)
new_vm.hypervisor_id = ''
new_vm.vpool = template_vm.vpool
new_vm.pmachine = target_pm
new_vm.name = name
new_vm.description = description
new_vm.is_vtemplate = False
new_vm.devicename = target_hypervisor.clean_vmachine_filename(vm_path)
new_vm.status = 'CREATED'
new_vm.save()
storagedrivers = [
storagedriver for storagedriver in vpool.storagedrivers if
storagedriver.storagerouter.pmachine_guid == new_vm.pmachine_guid
]
if len(storagedrivers) == 0:
raise RuntimeError(
'Cannot find Storage Driver serving {0} on {1}'.format(
vpool.name, new_vm.pmachine.name))
storagedriverguid = storagedrivers[0].guid
disks = []
disks_by_order = sorted(template_vm.vdisks, key=lambda x: x.order)
try:
for disk in disks_by_order:
prefix = '{0}-clone'.format(disk.name)
result = VDiskController.create_from_template(
diskguid=disk.guid,
devicename=prefix,
pmachineguid=target_pm.guid,
machinename=new_vm.name,
machineguid=new_vm.guid,
storagedriver_guid=storagedriverguid)
disks.append(result)
logger.debug('Disk appended: {0}'.format(result))
except Exception as exception:
logger.error('Creation of disk {0} failed: {1}'.format(
disk.name, str(exception)),
print_msg=True)
VMachineController.delete.s(machineguid=new_vm.guid).apply_async(
routing_key=routing_key)
raise
try:
result = target_hv.create_vm_from_template(
name,
source_vm,
disks,
target_storagedriver.storage_ip,
target_storagedriver.mountpoint,
wait=True)
except Exception as exception:
logger.error('Creation of vm {0} on hypervisor failed: {1}'.format(
new_vm.name, str(exception)),
print_msg=True)
VMachineController.delete.s(machineguid=new_vm.guid).apply_async(
routing_key=routing_key)
raise
new_vm.hypervisor_id = result
new_vm.status = 'SYNC'
new_vm.save()
return new_vm.guid
def clone(diskguid,
snapshotid,
devicename,
pmachineguid,
machinename,
machineguid=None):
"""
Clone a disk
"""
pmachine = PMachine(pmachineguid)
hypervisor = Factory.get(pmachine)
description = '{} {}'.format(machinename, devicename)
properties_to_clone = [
'description', 'size', 'type', 'retentionpolicyguid',
'snapshotpolicyguid', 'autobackup'
]
vdisk = VDisk(diskguid)
location = hypervisor.get_backing_disk_path(machinename, devicename)
new_vdisk = VDisk()
new_vdisk.copy(vdisk, include=properties_to_clone)
new_vdisk.parent_vdisk = vdisk
new_vdisk.name = '{0}-clone'.format(vdisk.name)
new_vdisk.description = description
new_vdisk.devicename = hypervisor.clean_backing_disk_filename(location)
new_vdisk.parentsnapshot = snapshotid
new_vdisk.vmachine = VMachine(
machineguid) if machineguid else vdisk.vmachine
new_vdisk.vpool = vdisk.vpool
new_vdisk.save()
try:
storagedriver = StorageDriverList.get_by_storagedriver_id(
vdisk.storagedriver_id)
if storagedriver is None:
raise RuntimeError(
'Could not find StorageDriver with id {0}'.format(
vdisk.storagedriver_id))
mds_service = MDSServiceController.get_preferred_mds(
storagedriver.storagerouter, vdisk.vpool)
if mds_service is None:
raise RuntimeError('Could not find a MDS service')
logger.info('Clone snapshot {} of disk {} to location {}'.format(
snapshotid, vdisk.name, location))
volume_id = vdisk.storagedriver_client.create_clone(
target_path=location,
metadata_backend_config=MDSMetaDataBackendConfig([
MDSNodeConfig(address=str(
mds_service.service.storagerouter.ip),
port=mds_service.service.ports[0])
]),
parent_volume_id=str(vdisk.volume_id),
parent_snapshot_id=str(snapshotid),
node_id=str(vdisk.storagedriver_id))
except Exception as ex:
logger.error(
'Caught exception during clone, trying to delete the volume. {0}'
.format(ex))
new_vdisk.delete()
VDiskController.delete_volume(location)
raise
new_vdisk.volume_id = volume_id
new_vdisk.save()
try:
MDSServiceController.ensure_safety(new_vdisk)
except Exception as ex:
logger.error(
'Caught exception during "ensure_safety" {0}'.format(ex))
return {
'diskguid': new_vdisk.guid,
'name': new_vdisk.name,
'backingdevice': location
}
def create_from_template(diskguid,
machinename,
devicename,
pmachineguid,
machineguid=None,
storagedriver_guid=None):
"""
Create a disk from a template
@param devicename: device file name for the disk (eg: mydisk-flat.vmdk)
@param machineguid: guid of the machine to assign disk to
@return diskguid: guid of new disk
"""
pmachine = PMachine(pmachineguid)
hypervisor = Factory.get(pmachine)
disk_path = hypervisor.get_disk_path(machinename, devicename)
description = '{} {}'.format(machinename, devicename)
properties_to_clone = [
'description', 'size', 'type', 'retentionpolicyid',
'snapshotpolicyid', 'vmachine', 'vpool'
]
vdisk = VDisk(diskguid)
if vdisk.vmachine and not vdisk.vmachine.is_vtemplate:
# Disk might not be attached to a vmachine, but still be a template
raise RuntimeError('The given vdisk does not belong to a template')
if storagedriver_guid is not None:
storagedriver_id = StorageDriver(
storagedriver_guid).storagedriver_id
else:
storagedriver_id = vdisk.storagedriver_id
storagedriver = StorageDriverList.get_by_storagedriver_id(
storagedriver_id)
if storagedriver is None:
raise RuntimeError(
'Could not find StorageDriver with id {0}'.format(
storagedriver_id))
new_vdisk = VDisk()
new_vdisk.copy(vdisk, include=properties_to_clone)
new_vdisk.vpool = vdisk.vpool
new_vdisk.devicename = hypervisor.clean_backing_disk_filename(
disk_path)
new_vdisk.parent_vdisk = vdisk
new_vdisk.name = '{}-clone'.format(vdisk.name)
new_vdisk.description = description
new_vdisk.vmachine = VMachine(
machineguid) if machineguid else vdisk.vmachine
new_vdisk.save()
mds_service = MDSServiceController.get_preferred_mds(
storagedriver.storagerouter, vdisk.vpool)
if mds_service is None:
raise RuntimeError('Could not find a MDS service')
logger.info(
'Create disk from template {} to new disk {} to location {}'.
format(vdisk.name, new_vdisk.name, disk_path))
try:
volume_id = vdisk.storagedriver_client.create_clone_from_template(
target_path=disk_path,
metadata_backend_config=MDSMetaDataBackendConfig([
MDSNodeConfig(address=str(
mds_service.service.storagerouter.ip),
port=mds_service.service.ports[0])
]),
parent_volume_id=str(vdisk.volume_id),
node_id=str(storagedriver_id))
new_vdisk.volume_id = volume_id
new_vdisk.save()
MDSServiceController.ensure_safety(new_vdisk)
except Exception as ex:
logger.error(
'Clone disk on volumedriver level failed with exception: {0}'.
format(str(ex)))
new_vdisk.delete()
raise
return {
'diskguid': new_vdisk.guid,
'name': new_vdisk.name,
'backingdevice': disk_path
}
def create_from_template(diskguid, machinename, devicename, pmachineguid, machineguid=None, storagedriver_guid=None):
"""
Create a disk from a template
@param devicename: device file name for the disk (eg: mydisk-flat.vmdk)
@param machineguid: guid of the machine to assign disk to
@return diskguid: guid of new disk
"""
pmachine = PMachine(pmachineguid)
hypervisor = Factory.get(pmachine)
disk_path = hypervisor.get_disk_path(machinename, devicename)
description = '{} {}'.format(machinename, devicename)
properties_to_clone = [
'description', 'size', 'type', 'retentionpolicyid',
'snapshotpolicyid', 'vmachine', 'vpool']
vdisk = VDisk(diskguid)
if vdisk.vmachine and not vdisk.vmachine.is_vtemplate:
# Disk might not be attached to a vmachine, but still be a template
raise RuntimeError('The given vdisk does not belong to a template')
if storagedriver_guid is not None:
storagedriver_id = StorageDriver(storagedriver_guid).storagedriver_id
else:
storagedriver_id = vdisk.storagedriver_id
storagedriver = StorageDriverList.get_by_storagedriver_id(storagedriver_id)
if storagedriver is None:
raise RuntimeError('Could not find StorageDriver with id {0}'.format(storagedriver_id))
new_vdisk = VDisk()
new_vdisk.copy(vdisk, include=properties_to_clone)
new_vdisk.vpool = vdisk.vpool
new_vdisk.devicename = hypervisor.clean_backing_disk_filename(disk_path)
new_vdisk.parent_vdisk = vdisk
new_vdisk.name = '{}-clone'.format(vdisk.name)
new_vdisk.description = description
new_vdisk.vmachine = VMachine(machineguid) if machineguid else vdisk.vmachine
new_vdisk.save()
mds_service = MDSServiceController.get_preferred_mds(storagedriver.storagerouter, vdisk.vpool)
if mds_service is None:
raise RuntimeError('Could not find a MDS service')
logger.info('Create disk from template {} to new disk {} to location {}'.format(
vdisk.name, new_vdisk.name, disk_path
))
try:
volume_id = vdisk.storagedriver_client.create_clone_from_template(
target_path=disk_path,
metadata_backend_config=MDSMetaDataBackendConfig([MDSNodeConfig(address=str(mds_service.service.storagerouter.ip),
port=mds_service.service.ports[0])]),
parent_volume_id=str(vdisk.volume_id),
node_id=str(storagedriver_id)
)
new_vdisk.volume_id = volume_id
new_vdisk.save()
MDSServiceController.ensure_safety(new_vdisk)
except Exception as ex:
logger.error('Clone disk on volumedriver level failed with exception: {0}'.format(str(ex)))
new_vdisk.delete()
raise
return {'diskguid': new_vdisk.guid, 'name': new_vdisk.name,
'backingdevice': disk_path}
def clone(diskguid, snapshotid, devicename, pmachineguid, machinename=None, machineguid=None, detached=False):
"""
Clone a disk
:param diskguid: Guid of the disk to clone
:param snapshotid: ID of the snapshot to clone from
:param devicename: Name of the device to use in clone's description
:param pmachineguid: Guid of the physical machine
:param machinename: Name of the machine the disk is attached to
:param machineguid: Guid of the machine
:param detached: Boolean indicating the disk is attached to a machine or not
"""
# 1. Validations
name_regex = "^[0-9a-zA-Z][-_a-zA-Z0-9]{1,48}[a-zA-Z0-9]$"
if not re.match(name_regex, devicename):
raise RuntimeError("Invalid name for virtual disk clone")
if VDiskList.get_vdisk_by_name(vdiskname=devicename) is not None:
raise RuntimeError("A virtual disk with this name already exists")
vdisk = VDisk(diskguid)
storagedriver = StorageDriverList.get_by_storagedriver_id(vdisk.storagedriver_id)
if storagedriver is None:
raise RuntimeError('Could not find StorageDriver with ID {0}'.format(vdisk.storagedriver_id))
if machineguid is not None and detached is True:
raise ValueError('A vMachine GUID was specified while detached is True')
# 2. Create new snapshot if required
if snapshotid is None:
timestamp = str(int(time.time()))
metadata = {'label': '',
'is_consistent': False,
'timestamp': timestamp,
'machineguid': machineguid,
'is_automatic': True}
sd_snapshot_id = VDiskController.create_snapshot(diskguid, metadata)
tries = 25 # 5 minutes
while snapshotid is None and tries > 0:
time.sleep(25 - tries)
tries -= 1
vdisk.invalidate_dynamics(['snapshots'])
for snapshot in vdisk.snapshots:
if snapshot['guid'] != sd_snapshot_id:
continue
if snapshot['in_backend'] is True:
snapshotid = snapshot['guid']
if snapshotid is None:
try:
VDiskController.delete_snapshot(diskguid=diskguid,
snapshotid=sd_snapshot_id)
except:
pass
raise RuntimeError('Could not find created snapshot in time')
# 3. Model new cloned virtual disk
hypervisor = Factory.get(PMachine(pmachineguid))
location = hypervisor.get_disk_path(machinename, devicename)
new_vdisk = VDisk()
new_vdisk.copy(vdisk, include=['description', 'size', 'type', 'retentionpolicyguid', 'snapshotpolicyguid', 'autobackup'])
new_vdisk.parent_vdisk = vdisk
new_vdisk.name = devicename
new_vdisk.description = devicename if machinename is None else '{0} {1}'.format(machinename, devicename)
new_vdisk.devicename = hypervisor.clean_backing_disk_filename(location)
new_vdisk.parentsnapshot = snapshotid
if detached is False:
new_vdisk.vmachine = VMachine(machineguid) if machineguid else vdisk.vmachine
new_vdisk.vpool = vdisk.vpool
new_vdisk.save()
# 4. Configure Storage Driver
try:
mds_service = MDSServiceController.get_preferred_mds(storagedriver.storagerouter, vdisk.vpool)
if mds_service is None:
raise RuntimeError('Could not find a MDS service')
logger.info('Clone snapshot {0} of disk {1} to location {2}'.format(snapshotid, vdisk.name, location))
backend_config = MDSMetaDataBackendConfig([MDSNodeConfig(address=str(mds_service.service.storagerouter.ip),
port=mds_service.service.ports[0])])
volume_id = vdisk.storagedriver_client.create_clone(target_path=location,
metadata_backend_config=backend_config,
parent_volume_id=str(vdisk.volume_id),
parent_snapshot_id=str(snapshotid),
node_id=str(vdisk.storagedriver_id))
except Exception as ex:
logger.error('Caught exception during clone, trying to delete the volume. {0}'.format(ex))
try:
VDiskController.clean_bad_disk(new_vdisk.guid)
except Exception as ex2:
logger.exception('Exception during exception handling of "create_clone_from_template" : {0}'.format(str(ex2)))
raise
new_vdisk.volume_id = volume_id
new_vdisk.save()
# 5. Check MDS & DTL for new clone
try:
MDSServiceController.ensure_safety(new_vdisk)
except Exception as ex:
logger.error('Caught exception during "ensure_safety" {0}'.format(ex))
VDiskController.dtl_checkup.delay(vdisk_guid=new_vdisk.guid)
return {'diskguid': new_vdisk.guid,
'name': new_vdisk.name,
'backingdevice': location}
def create_from_template(diskguid,
machinename,
devicename,
pmachineguid,
machineguid=None,
storagedriver_guid=None):
"""
Create a disk from a template
@param parentdiskguid: guid of the disk
@param location: location where virtual device should be created (eg: myVM)
@param devicename: device file name for the disk (eg: mydisk-flat.vmdk)
@param machineguid: guid of the machine to assign disk to
@return diskguid: guid of new disk
"""
pmachine = PMachine(pmachineguid)
hypervisor = Factory.get(pmachine)
disk_path = hypervisor.get_disk_path(machinename, devicename)
description = '{} {}'.format(machinename, devicename)
properties_to_clone = [
'description', 'size', 'type', 'retentionpolicyid',
'snapshotpolicyid', 'vmachine', 'vpool'
]
disk = VDisk(diskguid)
if disk.vmachine and not disk.vmachine.is_vtemplate:
# Disk might not be attached to a vmachine, but still be a template
raise RuntimeError('The given disk does not belong to a template')
if storagedriver_guid is not None:
storagedriver_id = StorageDriver(
storagedriver_guid).storagedriver_id
else:
storagedriver_id = disk.storagedriver_id
new_disk = VDisk()
new_disk.copy(disk, include=properties_to_clone)
new_disk.vpool = disk.vpool
new_disk.devicename = hypervisor.clean_backing_disk_filename(disk_path)
new_disk.parent_vdisk = disk
new_disk.name = '{}-clone'.format(disk.name)
new_disk.description = description
new_disk.vmachine = VMachine(
machineguid) if machineguid else disk.vmachine
new_disk.save()
logger.info(
'Create disk from template {} to new disk {} to location {}'.
format(disk.name, new_disk.name, disk_path))
try:
volume_id = disk.storagedriver_client.create_clone_from_template(
disk_path, str(disk.volume_id), node_id=str(storagedriver_id))
new_disk.volume_id = volume_id
new_disk.save()
except Exception as ex:
logger.error(
'Clone disk on volumedriver level failed with exception: {0}'.
format(str(ex)))
new_disk.delete()
raise
return {
'diskguid': new_disk.guid,
'name': new_disk.name,
'backingdevice': disk_path
}
def clone(machineguid, timestamp, name):
"""
Clone a vmachine using the disk snapshot based on a snapshot timestamp
@param machineguid: guid of the machine to clone
@param timestamp: timestamp of the disk snapshots to use for the clone
@param name: name for the new machine
"""
machine = VMachine(machineguid)
timestamp = str(timestamp)
if timestamp not in (snap['timestamp'] for snap in machine.snapshots):
raise RuntimeError('Invalid timestamp provided, not a valid snapshot of this vmachine.')
vpool = None
storagerouter = None
if machine.pmachine is not None and machine.pmachine.hvtype == 'VMWARE':
for vdisk in machine.vdisks:
if vdisk.vpool is not None:
vpool = vdisk.vpool
break
for vdisk in machine.vdisks:
if vdisk.storagerouter_guid:
storagerouter = StorageRouter(vdisk.storagerouter_guid)
break
hv = Factory.get(machine.pmachine)
vm_path = hv.get_vmachine_path(name, storagerouter.machine_id if storagerouter is not None else '')
# mutex in sync_with_hypervisor uses "None" for KVM hvtype
mutex = volatile_mutex('{0}_{1}'.format(hv.clean_vmachine_filename(vm_path), vpool.guid if vpool is not None else 'none'))
disks = {}
for snapshot in machine.snapshots:
if snapshot['timestamp'] == timestamp:
for diskguid, snapshotguid in snapshot['snapshots'].iteritems():
disks[diskguid] = snapshotguid
try:
mutex.acquire(wait=120)
new_machine = VMachine()
new_machine.copy(machine)
new_machine.name = name
new_machine.devicename = hv.clean_vmachine_filename(vm_path)
new_machine.pmachine = machine.pmachine
new_machine.save()
finally:
mutex.release()
new_disk_guids = []
vm_disks = []
mountpoint = None
disks_by_order = sorted(machine.vdisks, key=lambda x: x.order)
try:
for currentDisk in disks_by_order:
if machine.is_vtemplate and currentDisk.templatesnapshot:
snapshotid = currentDisk.templatesnapshot
else:
snapshotid = disks[currentDisk.guid]
prefix = '%s-clone' % currentDisk.name
result = VDiskController.clone(diskguid=currentDisk.guid,
snapshotid=snapshotid,
devicename=prefix,
pmachineguid=new_machine.pmachine_guid,
machinename=new_machine.name,
machineguid=new_machine.guid)
new_disk_guids.append(result['diskguid'])
mountpoint = StorageDriverList.get_by_storagedriver_id(currentDisk.storagedriver_id).mountpoint
vm_disks.append(result)
except Exception as ex:
VMachineController._logger.error('Failed to clone disks. {0}'.format(ex))
VMachineController.delete(machineguid=new_machine.guid)
raise
try:
result = hv.clone_vm(machine.hypervisor_id, name, vm_disks, mountpoint)
except Exception as ex:
VMachineController._logger.error('Failed to clone vm. {0}'.format(ex))
VMachineController.delete(machineguid=new_machine.guid)
raise
try:
mutex.acquire(wait=120)
new_machine.hypervisor_id = result
new_machine.save()
finally:
mutex.release()
return new_machine.guid
def create_from_template(diskguid, devicename, pmachineguid, machinename='', machineguid=None):
"""
Create a disk from a template
:param diskguid: Guid of the disk
:param machinename: Name of the machine
:param devicename: Device file name for the disk (eg: my_disk-flat.vmdk)
:param pmachineguid: Guid of pmachine to create new vdisk on
:param machineguid: Guid of the machine to assign disk to
:return diskguid: Guid of new disk
"""
pmachine = PMachine(pmachineguid)
hypervisor = Factory.get(pmachine)
if machineguid is not None:
new_vdisk_vmachine = VMachine(machineguid)
machinename = new_vdisk_vmachine.name
disk_path = hypervisor.get_disk_path(machinename, devicename)
description = '{0} {1}'.format(machinename, devicename)
properties_to_clone = [
'description', 'size', 'type', 'retentionpolicyid',
'snapshotpolicyid', 'vmachine', 'vpool']
vdisk = VDisk(diskguid)
if vdisk.vmachine and not vdisk.vmachine.is_vtemplate:
# Disk might not be attached to a vmachine, but still be a template
raise RuntimeError('The given vdisk does not belong to a template')
if not vdisk.is_vtemplate:
raise RuntimeError('The given vdisk is not a template')
storagedriver = None
for sd in vdisk.vpool.storagedrivers:
if sd.storagerouter_guid in pmachine.storagerouters_guids:
storagedriver = sd
break
if storagedriver is None:
raise RuntimeError('Could not find Storage Driver')
new_vdisk = VDisk()
new_vdisk.copy(vdisk, include=properties_to_clone)
new_vdisk.vpool = vdisk.vpool
new_vdisk.devicename = hypervisor.clean_backing_disk_filename(disk_path)
new_vdisk.parent_vdisk = vdisk
new_vdisk.name = '{0}-clone'.format(vdisk.name)
new_vdisk.description = description
new_vdisk.vmachine = new_vdisk_vmachine if machineguid else vdisk.vmachine
new_vdisk.save()
mds_service = MDSServiceController.get_preferred_mds(storagedriver.storagerouter, new_vdisk.vpool)
if mds_service is None:
raise RuntimeError('Could not find a MDS service')
logger.info('Create disk from template {0} to new disk {1} to location {2}'.format(vdisk.name, new_vdisk.name, disk_path))
try:
backend_config = MDSNodeConfig(address=str(mds_service.service.storagerouter.ip),
port=mds_service.service.ports[0])
volume_id = vdisk.storagedriver_client.create_clone_from_template(target_path=disk_path,
metadata_backend_config=MDSMetaDataBackendConfig([backend_config]),
parent_volume_id=str(vdisk.volume_id),
node_id=str(storagedriver.storagedriver_id))
new_vdisk.volume_id = volume_id
new_vdisk.save()
MDSServiceController.ensure_safety(new_vdisk)
VDiskController.dtl_checkup.delay(vdisk_guid=new_vdisk.guid)
except Exception as ex:
logger.error('Clone disk on volumedriver level failed with exception: {0}'.format(str(ex)))
try:
VDiskController.clean_bad_disk(new_vdisk.guid)
except Exception as ex2:
logger.exception('Exception during exception handling of "create_clone_from_template" : {0}'.format(str(ex2)))
raise ex
return {'diskguid': new_vdisk.guid, 'name': new_vdisk.name,
'backingdevice': disk_path}
