Examples with Domain org.libvirt.Domain used on opensource projects

Example 26 with Domain

use of org.libvirt.Domain in project cloudstack by apache.

the class LibvirtComputingResource method attachOrDetachDisk.

public synchronized String attachOrDetachDisk(final Connect conn, final boolean attach, final String vmName, final KVMPhysicalDisk attachingDisk, final int devId, final Long bytesReadRate, final Long bytesWriteRate, final Long iopsReadRate, final Long iopsWriteRate, final String cacheMode) throws LibvirtException, InternalErrorException {
    List<DiskDef> disks = null;
    Domain dm = null;
    DiskDef diskdef = null;
    final KVMStoragePool attachingPool = attachingDisk.getPool();
    try {
        dm = conn.domainLookupByName(vmName);
        final LibvirtDomainXMLParser parser = new LibvirtDomainXMLParser();
        final String domXml = dm.getXMLDesc(0);
        parser.parseDomainXML(domXml);
        disks = parser.getDisks();
        if (!attach) {
            for (final DiskDef disk : disks) {
                final String file = disk.getDiskPath();
                if (file != null && file.equalsIgnoreCase(attachingDisk.getPath())) {
                    diskdef = disk;
                    break;
                }
            }
            if (diskdef == null) {
                throw new InternalErrorException("disk: " + attachingDisk.getPath() + " is not attached before");
            }
        } else {
            DiskDef.DiskBus busT = DiskDef.DiskBus.VIRTIO;
            for (final DiskDef disk : disks) {
                if (disk.getDeviceType() == DeviceType.DISK) {
                    if (disk.getBusType() == DiskDef.DiskBus.SCSI) {
                        busT = DiskDef.DiskBus.SCSI;
                    }
                    break;
                }
            }
            diskdef = new DiskDef();
            if (busT == DiskDef.DiskBus.SCSI) {
                diskdef.setQemuDriver(true);
                diskdef.setDiscard(DiscardType.UNMAP);
            }
            if (attachingPool.getType() == StoragePoolType.RBD) {
                diskdef.defNetworkBasedDisk(attachingDisk.getPath(), attachingPool.getSourceHost(), attachingPool.getSourcePort(), attachingPool.getAuthUserName(), attachingPool.getUuid(), devId, busT, DiskProtocol.RBD, DiskDef.DiskFmtType.RAW);
            } else if (attachingPool.getType() == StoragePoolType.Gluster) {
                diskdef.defNetworkBasedDisk(attachingDisk.getPath(), attachingPool.getSourceHost(), attachingPool.getSourcePort(), null, null, devId, busT, DiskProtocol.GLUSTER, DiskDef.DiskFmtType.QCOW2);
            } else if (attachingDisk.getFormat() == PhysicalDiskFormat.QCOW2) {
                diskdef.defFileBasedDisk(attachingDisk.getPath(), devId, busT, DiskDef.DiskFmtType.QCOW2);
            } else if (attachingDisk.getFormat() == PhysicalDiskFormat.RAW) {
                diskdef.defBlockBasedDisk(attachingDisk.getPath(), devId, busT);
            }
            if (bytesReadRate != null && bytesReadRate > 0) {
                diskdef.setBytesReadRate(bytesReadRate);
            }
            if (bytesWriteRate != null && bytesWriteRate > 0) {
                diskdef.setBytesWriteRate(bytesWriteRate);
            }
            if (iopsReadRate != null && iopsReadRate > 0) {
                diskdef.setIopsReadRate(iopsReadRate);
            }
            if (iopsWriteRate != null && iopsWriteRate > 0) {
                diskdef.setIopsWriteRate(iopsWriteRate);
            }
            if (cacheMode != null) {
                diskdef.setCacheMode(DiskDef.DiskCacheMode.valueOf(cacheMode.toUpperCase()));
            }
        }
        final String xml = diskdef.toString();
        return attachOrDetachDevice(conn, attach, vmName, xml);
    } finally {
        if (dm != null) {
            dm.free();
        }
    }
}

Example 27 with Domain

use of org.libvirt.Domain in project cloudstack by apache.

the class LibvirtComputingResourceTest method testMemoryFreeInKBsDomainReturningNoMemoryStatistics.

@Test
public void testMemoryFreeInKBsDomainReturningNoMemoryStatistics() throws LibvirtException {
    LibvirtComputingResource libvirtComputingResource = new LibvirtComputingResource();
    Domain domainMock = getDomainConfiguredToReturnMemoryStatistic(null);
    long memoryFreeInKBs = libvirtComputingResource.getMemoryFreeInKBs(domainMock);
    Assert.assertEquals(0, memoryFreeInKBs);
}

Example 28 with Domain

use of org.libvirt.Domain in project cloudstack by apache.

the class KVMStorageProcessor method attachOrDetachDisk.

protected synchronized String attachOrDetachDisk(final Connect conn, final boolean attach, final String vmName, final KVMPhysicalDisk attachingDisk, final int devId, final String serial, final Long bytesReadRate, final Long bytesWriteRate, final Long iopsReadRate, final Long iopsWriteRate) throws LibvirtException, InternalErrorException {
    List<DiskDef> disks = null;
    Domain dm = null;
    DiskDef diskdef = null;
    final KVMStoragePool attachingPool = attachingDisk.getPool();
    try {
        dm = conn.domainLookupByName(vmName);
        final LibvirtDomainXMLParser parser = new LibvirtDomainXMLParser();
        final String domXml = dm.getXMLDesc(0);
        parser.parseDomainXML(domXml);
        disks = parser.getDisks();
        if (!attach) {
            if (attachingPool.getType() == StoragePoolType.RBD) {
                if (resource.getHypervisorType() == Hypervisor.HypervisorType.LXC) {
                    final String device = resource.mapRbdDevice(attachingDisk);
                    if (device != null) {
                        s_logger.debug("RBD device on host is: " + device);
                        attachingDisk.setPath(device);
                    }
                }
            }
            for (final DiskDef disk : disks) {
                final String file = disk.getDiskPath();
                if (file != null && file.equalsIgnoreCase(attachingDisk.getPath())) {
                    diskdef = disk;
                    break;
                }
            }
            if (diskdef == null) {
                throw new InternalErrorException("disk: " + attachingDisk.getPath() + " is not attached before");
            }
        } else {
            DiskDef.DiskBus busT = DiskDef.DiskBus.VIRTIO;
            for (final DiskDef disk : disks) {
                if (disk.getDeviceType() == DeviceType.DISK) {
                    if (disk.getBusType() == DiskDef.DiskBus.SCSI) {
                        busT = DiskDef.DiskBus.SCSI;
                    }
                    break;
                }
            }
            diskdef = new DiskDef();
            if (busT == DiskDef.DiskBus.SCSI) {
                diskdef.setQemuDriver(true);
                diskdef.setDiscard(DiscardType.UNMAP);
            }
            diskdef.setSerial(serial);
            if (attachingPool.getType() == StoragePoolType.RBD) {
                if (resource.getHypervisorType() == Hypervisor.HypervisorType.LXC) {
                    // For LXC, map image to host and then attach to Vm
                    final String device = resource.mapRbdDevice(attachingDisk);
                    if (device != null) {
                        s_logger.debug("RBD device on host is: " + device);
                        diskdef.defBlockBasedDisk(device, devId, busT);
                    } else {
                        throw new InternalErrorException("Error while mapping disk " + attachingDisk.getPath() + " on host");
                    }
                } else {
                    diskdef.defNetworkBasedDisk(attachingDisk.getPath(), attachingPool.getSourceHost(), attachingPool.getSourcePort(), attachingPool.getAuthUserName(), attachingPool.getUuid(), devId, busT, DiskProtocol.RBD, DiskDef.DiskFmtType.RAW);
                }
            } else if (attachingPool.getType() == StoragePoolType.Gluster) {
                final String mountpoint = attachingPool.getLocalPath();
                final String path = attachingDisk.getPath();
                final String glusterVolume = attachingPool.getSourceDir().replace("/", "");
                diskdef.defNetworkBasedDisk(glusterVolume + path.replace(mountpoint, ""), attachingPool.getSourceHost(), attachingPool.getSourcePort(), null, null, devId, busT, DiskProtocol.GLUSTER, DiskDef.DiskFmtType.QCOW2);
            } else if (attachingDisk.getFormat() == PhysicalDiskFormat.QCOW2) {
                diskdef.defFileBasedDisk(attachingDisk.getPath(), devId, busT, DiskDef.DiskFmtType.QCOW2);
            } else if (attachingDisk.getFormat() == PhysicalDiskFormat.RAW) {
                diskdef.defBlockBasedDisk(attachingDisk.getPath(), devId, busT);
            }
            if ((bytesReadRate != null) && (bytesReadRate > 0)) {
                diskdef.setBytesReadRate(bytesReadRate);
            }
            if ((bytesWriteRate != null) && (bytesWriteRate > 0)) {
                diskdef.setBytesWriteRate(bytesWriteRate);
            }
            if ((iopsReadRate != null) && (iopsReadRate > 0)) {
                diskdef.setIopsReadRate(iopsReadRate);
            }
            if ((iopsWriteRate != null) && (iopsWriteRate > 0)) {
                diskdef.setIopsWriteRate(iopsWriteRate);
            }
        }
        final String xml = diskdef.toString();
        return attachOrDetachDevice(conn, attach, vmName, xml);
    } finally {
        if (dm != null) {
            dm.free();
        }
    }
}

Example 29 with Domain

use of org.libvirt.Domain in project cloudstack by apache.

the class LibvirtRestoreVMSnapshotCommandWrapper method execute.

@Override
public Answer execute(final RestoreVMSnapshotCommand cmd, final LibvirtComputingResource libvirtComputingResource) {
    String vmName = cmd.getVmName();
    List<VolumeObjectTO> listVolumeTo = cmd.getVolumeTOs();
    VirtualMachine.PowerState vmState = VirtualMachine.PowerState.PowerOn;
    Domain dm = null;
    try {
        final LibvirtUtilitiesHelper libvirtUtilitiesHelper = libvirtComputingResource.getLibvirtUtilitiesHelper();
        Connect conn = libvirtUtilitiesHelper.getConnection();
        dm = libvirtComputingResource.getDomain(conn, vmName);
        if (dm == null) {
            return new RestoreVMSnapshotAnswer(cmd, false, "Restore VM Snapshot Failed due to can not find vm: " + vmName);
        }
        String xmlDesc = dm.getXMLDesc(0);
        List<VMSnapshotTO> snapshots = cmd.getSnapshots();
        Map<Long, VMSnapshotTO> snapshotAndParents = cmd.getSnapshotAndParents();
        for (VMSnapshotTO snapshot : snapshots) {
            VMSnapshotTO parent = snapshotAndParents.get(snapshot.getId());
            String vmSnapshotXML = libvirtUtilitiesHelper.generateVMSnapshotXML(snapshot, parent, xmlDesc);
            s_logger.debug("Restoring vm snapshot " + snapshot.getSnapshotName() + " on " + vmName + " with XML:\n " + vmSnapshotXML);
            try {
                // VIR_DOMAIN_SNAPSHOT_CREATE_REDEFINE = 1
                int flags = 1;
                if (snapshot.getCurrent()) {
                    // VIR_DOMAIN_SNAPSHOT_CREATE_CURRENT = 2
                    flags += 2;
                }
                dm.snapshotCreateXML(vmSnapshotXML, flags);
            } catch (LibvirtException e) {
                s_logger.debug("Failed to restore vm snapshot " + snapshot.getSnapshotName() + " on " + vmName);
                return new RestoreVMSnapshotAnswer(cmd, false, e.toString());
            }
        }
        return new RestoreVMSnapshotAnswer(cmd, listVolumeTo, vmState);
    } catch (LibvirtException e) {
        String msg = " Restore snapshot failed due to " + e.toString();
        s_logger.warn(msg, e);
        return new RestoreVMSnapshotAnswer(cmd, false, msg);
    } finally {
        if (dm != null) {
            try {
                dm.free();
            } catch (LibvirtException l) {
                s_logger.trace("Ignoring libvirt error.", l);
            }
            ;
        }
    }
}

Example 30 with Domain

use of org.libvirt.Domain in project cloudstack by apache.

the class LibvirtRevertToVMSnapshotCommandWrapper method execute.

@Override
public Answer execute(final RevertToVMSnapshotCommand cmd, final LibvirtComputingResource libvirtComputingResource) {
    String vmName = cmd.getVmName();
    List<VolumeObjectTO> listVolumeTo = cmd.getVolumeTOs();
    VMSnapshot.Type vmSnapshotType = cmd.getTarget().getType();
    Boolean snapshotMemory = vmSnapshotType == VMSnapshot.Type.DiskAndMemory;
    VirtualMachine.PowerState vmState = null;
    Domain dm = null;
    try {
        final LibvirtUtilitiesHelper libvirtUtilitiesHelper = libvirtComputingResource.getLibvirtUtilitiesHelper();
        Connect conn = libvirtUtilitiesHelper.getConnection();
        dm = libvirtComputingResource.getDomain(conn, vmName);
        if (dm == null) {
            return new RevertToVMSnapshotAnswer(cmd, false, "Revert to VM Snapshot Failed due to can not find vm: " + vmName);
        }
        DomainSnapshot snapshot = dm.snapshotLookupByName(cmd.getTarget().getSnapshotName());
        if (snapshot == null)
            return new RevertToVMSnapshotAnswer(cmd, false, "Cannot find vmSnapshot with name: " + cmd.getTarget().getSnapshotName());
        dm.revertToSnapshot(snapshot);
        snapshot.free();
        if (!snapshotMemory) {
            dm.destroy();
            if (dm.isPersistent() == 1)
                dm.undefine();
            vmState = VirtualMachine.PowerState.PowerOff;
        } else {
            vmState = VirtualMachine.PowerState.PowerOn;
        }
        return new RevertToVMSnapshotAnswer(cmd, listVolumeTo, vmState);
    } catch (LibvirtException e) {
        String msg = " Revert to VM snapshot failed due to " + e.toString();
        s_logger.warn(msg, e);
        return new RevertToVMSnapshotAnswer(cmd, false, msg);
    } finally {
        if (dm != null) {
            try {
                dm.free();
            } catch (LibvirtException l) {
                s_logger.trace("Ignoring libvirt error.", l);
            }
            ;
        }
    }
}