Examples with DomainState org.libvirt.DomainInfo.DomainState used on opensource projects

Example 26 with DomainState

use of org.libvirt.DomainInfo.DomainState in project cloudstack by apache.

the class LibvirtComputingResource method getHostVmStateReport.

private HashMap<String, HostVmStateReportEntry> getHostVmStateReport(final Connect conn) {
    final HashMap<String, HostVmStateReportEntry> vmStates = new HashMap<String, HostVmStateReportEntry>();
    String[] vms = null;
    int[] ids = null;
    try {
        ids = conn.listDomains();
    } catch (final LibvirtException e) {
        s_logger.warn("Unable to listDomains", e);
        return null;
    }
    try {
        vms = conn.listDefinedDomains();
    } catch (final LibvirtException e) {
        s_logger.warn("Unable to listDomains", e);
        return null;
    }
    Domain dm = null;
    for (int i = 0; i < ids.length; i++) {
        try {
            dm = conn.domainLookupByID(ids[i]);
            final DomainState ps = dm.getInfo().state;
            final PowerState state = convertToPowerState(ps);
            s_logger.trace("VM " + dm.getName() + ": powerstate = " + ps + "; vm state=" + state.toString());
            final String vmName = dm.getName();
            // 
            if (state == PowerState.PowerOn) {
                vmStates.put(vmName, new HostVmStateReportEntry(state, conn.getHostName()));
            }
        } catch (final LibvirtException e) {
            s_logger.warn("Unable to get vms", e);
        } finally {
            try {
                if (dm != null) {
                    dm.free();
                }
            } catch (final LibvirtException e) {
                s_logger.trace("Ignoring libvirt error.", e);
            }
        }
    }
    for (int i = 0; i < vms.length; i++) {
        try {
            dm = conn.domainLookupByName(vms[i]);
            final DomainState ps = dm.getInfo().state;
            final PowerState state = convertToPowerState(ps);
            final String vmName = dm.getName();
            s_logger.trace("VM " + vmName + ": powerstate = " + ps + "; vm state=" + state.toString());
            // 
            if (state == PowerState.PowerOn) {
                vmStates.put(vmName, new HostVmStateReportEntry(state, conn.getHostName()));
            }
        } catch (final LibvirtException e) {
            s_logger.warn("Unable to get vms", e);
        } finally {
            try {
                if (dm != null) {
                    dm.free();
                }
            } catch (final LibvirtException e) {
                s_logger.trace("Ignoring libvirt error.", e);
            }
        }
    }
    return vmStates;
}

Example 27 with DomainState

use of org.libvirt.DomainInfo.DomainState in project cloudstack by apache.

the class LibvirtBackupSnapshotCommandWrapper method execute.

@Override
public Answer execute(final BackupSnapshotCommand command, final LibvirtComputingResource libvirtComputingResource) {
    final Long dcId = command.getDataCenterId();
    final Long accountId = command.getAccountId();
    final Long volumeId = command.getVolumeId();
    final String secondaryStoragePoolUrl = command.getSecondaryStorageUrl();
    final String snapshotName = command.getSnapshotName();
    String snapshotDestPath = null;
    String snapshotRelPath = null;
    final String vmName = command.getVmName();
    KVMStoragePool secondaryStoragePool = null;
    final KVMStoragePoolManager storagePoolMgr = libvirtComputingResource.getStoragePoolMgr();
    try {
        final LibvirtUtilitiesHelper libvirtUtilitiesHelper = libvirtComputingResource.getLibvirtUtilitiesHelper();
        final Connect conn = libvirtUtilitiesHelper.getConnectionByVmName(vmName);
        secondaryStoragePool = storagePoolMgr.getStoragePoolByURI(secondaryStoragePoolUrl);
        final String ssPmountPath = secondaryStoragePool.getLocalPath();
        snapshotRelPath = File.separator + "snapshots" + File.separator + dcId + File.separator + accountId + File.separator + volumeId;
        snapshotDestPath = ssPmountPath + File.separator + "snapshots" + File.separator + dcId + File.separator + accountId + File.separator + volumeId;
        final KVMStoragePool primaryPool = storagePoolMgr.getStoragePool(command.getPool().getType(), command.getPrimaryStoragePoolNameLabel());
        final KVMPhysicalDisk snapshotDisk = primaryPool.getPhysicalDisk(command.getVolumePath());
        final String manageSnapshotPath = libvirtComputingResource.manageSnapshotPath();
        final int cmdsTimeout = libvirtComputingResource.getCmdsTimeout();
        /**
         * RBD snapshots can't be copied using qemu-img, so we have to use
         * the Java bindings for librbd here.
         *
         * These bindings will read the snapshot and write the contents to
         * the secondary storage directly
         *
         * It will stop doing so if the amount of time spend is longer then
         * cmds.timeout
         */
        if (primaryPool.getType() == StoragePoolType.RBD) {
            try {
                final Rados r = new Rados(primaryPool.getAuthUserName());
                r.confSet("mon_host", primaryPool.getSourceHost() + ":" + primaryPool.getSourcePort());
                r.confSet("key", primaryPool.getAuthSecret());
                r.confSet("client_mount_timeout", "30");
                r.connect();
                s_logger.debug("Succesfully connected to Ceph cluster at " + r.confGet("mon_host"));
                final IoCTX io = r.ioCtxCreate(primaryPool.getSourceDir());
                final Rbd rbd = new Rbd(io);
                final RbdImage image = rbd.open(snapshotDisk.getName(), snapshotName);
                final File fh = new File(snapshotDestPath);
                try (BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(fh))) {
                    final int chunkSize = 4194304;
                    long offset = 0;
                    s_logger.debug("Backuping up RBD snapshot " + snapshotName + " to  " + snapshotDestPath);
                    while (true) {
                        final byte[] buf = new byte[chunkSize];
                        final int bytes = image.read(offset, buf, chunkSize);
                        if (bytes <= 0) {
                            break;
                        }
                        bos.write(buf, 0, bytes);
                        offset += bytes;
                    }
                    s_logger.debug("Completed backing up RBD snapshot " + snapshotName + " to  " + snapshotDestPath + ". Bytes written: " + toHumanReadableSize(offset));
                } catch (final IOException ex) {
                    s_logger.error("BackupSnapshotAnswer:Exception:" + ex.getMessage());
                }
                r.ioCtxDestroy(io);
            } catch (final RadosException e) {
                s_logger.error("A RADOS operation failed. The error was: " + e.getMessage());
                return new BackupSnapshotAnswer(command, false, e.toString(), null, true);
            } catch (final RbdException e) {
                s_logger.error("A RBD operation on " + snapshotDisk.getName() + " failed. The error was: " + e.getMessage());
                return new BackupSnapshotAnswer(command, false, e.toString(), null, true);
            }
        } else {
            final Script scriptCommand = new Script(manageSnapshotPath, cmdsTimeout, s_logger);
            scriptCommand.add("-b", snapshotDisk.getPath());
            scriptCommand.add("-n", snapshotName);
            scriptCommand.add("-p", snapshotDestPath);
            scriptCommand.add("-t", snapshotName);
            final String result = scriptCommand.execute();
            if (result != null) {
                s_logger.debug("Failed to backup snaptshot: " + result);
                return new BackupSnapshotAnswer(command, false, result, null, true);
            }
        }
        /* Delete the snapshot on primary */
        DomainState state = null;
        Domain vm = null;
        if (vmName != null) {
            try {
                vm = libvirtComputingResource.getDomain(conn, command.getVmName());
                state = vm.getInfo().state;
            } catch (final LibvirtException e) {
                s_logger.trace("Ignoring libvirt error.", e);
            }
        }
        final KVMStoragePool primaryStorage = storagePoolMgr.getStoragePool(command.getPool().getType(), command.getPool().getUuid());
        if (state == DomainState.VIR_DOMAIN_RUNNING && !primaryStorage.isExternalSnapshot()) {
            final MessageFormat snapshotXML = new MessageFormat("   <domainsnapshot>" + "       <name>{0}</name>" + "          <domain>" + "            <uuid>{1}</uuid>" + "        </domain>" + "    </domainsnapshot>");
            final String vmUuid = vm.getUUIDString();
            final Object[] args = new Object[] { snapshotName, vmUuid };
            final String snapshot = snapshotXML.format(args);
            s_logger.debug(snapshot);
            final DomainSnapshot snap = vm.snapshotLookupByName(snapshotName);
            if (snap != null) {
                snap.delete(0);
            } else {
                throw new CloudRuntimeException("Unable to find vm snapshot with name -" + snapshotName);
            }
            /*
                 * libvirt on RHEL6 doesn't handle resume event emitted from
                 * qemu
                 */
            vm = libvirtComputingResource.getDomain(conn, command.getVmName());
            state = vm.getInfo().state;
            if (state == DomainState.VIR_DOMAIN_PAUSED) {
                vm.resume();
            }
        } else {
            final Script scriptCommand = new Script(manageSnapshotPath, cmdsTimeout, s_logger);
            scriptCommand.add("-d", snapshotDisk.getPath());
            scriptCommand.add("-n", snapshotName);
            final String result = scriptCommand.execute();
            if (result != null) {
                s_logger.debug("Failed to backup snapshot: " + result);
                return new BackupSnapshotAnswer(command, false, "Failed to backup snapshot: " + result, null, true);
            }
        }
    } catch (final LibvirtException e) {
        return new BackupSnapshotAnswer(command, false, e.toString(), null, true);
    } catch (final CloudRuntimeException e) {
        return new BackupSnapshotAnswer(command, false, e.toString(), null, true);
    } finally {
        if (secondaryStoragePool != null) {
            storagePoolMgr.deleteStoragePool(secondaryStoragePool.getType(), secondaryStoragePool.getUuid());
        }
    }
    return new BackupSnapshotAnswer(command, true, null, snapshotRelPath + File.separator + snapshotName, true);
}

Example 28 with DomainState

use of org.libvirt.DomainInfo.DomainState in project cloudstack by apache.

the class LibvirtManageSnapshotCommandWrapper method execute.

@Override
public Answer execute(final ManageSnapshotCommand command, final LibvirtComputingResource libvirtComputingResource) {
    final String snapshotName = command.getSnapshotName();
    final String snapshotPath = command.getSnapshotPath();
    final String vmName = command.getVmName();
    try {
        final LibvirtUtilitiesHelper libvirtUtilitiesHelper = libvirtComputingResource.getLibvirtUtilitiesHelper();
        final Connect conn = libvirtUtilitiesHelper.getConnectionByVmName(vmName);
        DomainState state = null;
        Domain vm = null;
        if (vmName != null) {
            try {
                vm = libvirtComputingResource.getDomain(conn, command.getVmName());
                state = vm.getInfo().state;
            } catch (final LibvirtException e) {
                s_logger.trace("Ignoring libvirt error.", e);
            }
        }
        final KVMStoragePoolManager storagePoolMgr = libvirtComputingResource.getStoragePoolMgr();
        final StorageFilerTO pool = command.getPool();
        final KVMStoragePool primaryPool = storagePoolMgr.getStoragePool(pool.getType(), pool.getUuid());
        final KVMPhysicalDisk disk = primaryPool.getPhysicalDisk(command.getVolumePath());
        if (state == DomainState.VIR_DOMAIN_RUNNING && !primaryPool.isExternalSnapshot()) {
            final MessageFormat snapshotXML = new MessageFormat("   <domainsnapshot>" + "       <name>{0}</name>" + "          <domain>" + "            <uuid>{1}</uuid>" + "        </domain>" + "    </domainsnapshot>");
            final String vmUuid = vm.getUUIDString();
            final Object[] args = new Object[] { snapshotName, vmUuid };
            final String snapshot = snapshotXML.format(args);
            s_logger.debug(snapshot);
            if (command.getCommandSwitch().equalsIgnoreCase(ManageSnapshotCommand.CREATE_SNAPSHOT)) {
                vm.snapshotCreateXML(snapshot);
            } else {
                final DomainSnapshot snap = vm.snapshotLookupByName(snapshotName);
                snap.delete(0);
            }
            /*
                 * libvirt on RHEL6 doesn't handle resume event emitted from
                 * qemu
                 */
            vm = libvirtComputingResource.getDomain(conn, command.getVmName());
            state = vm.getInfo().state;
            if (state == DomainState.VIR_DOMAIN_PAUSED) {
                vm.resume();
            }
        } else {
            /**
             * For RBD we can't use libvirt to do our snapshotting or any Bash scripts.
             * libvirt also wants to store the memory contents of the Virtual Machine,
             * but that's not possible with RBD since there is no way to store the memory
             * contents in RBD.
             *
             * So we rely on the Java bindings for RBD to create our snapshot
             *
             * This snapshot might not be 100% consistent due to writes still being in the
             * memory of the Virtual Machine, but if the VM runs a kernel which supports
             * barriers properly (>2.6.32) this won't be any different then pulling the power
             * cord out of a running machine.
             */
            if (primaryPool.getType() == StoragePoolType.RBD) {
                try {
                    final Rados r = new Rados(primaryPool.getAuthUserName());
                    r.confSet("mon_host", primaryPool.getSourceHost() + ":" + primaryPool.getSourcePort());
                    r.confSet("key", primaryPool.getAuthSecret());
                    r.confSet("client_mount_timeout", "30");
                    r.connect();
                    s_logger.debug("Succesfully connected to Ceph cluster at " + r.confGet("mon_host"));
                    final IoCTX io = r.ioCtxCreate(primaryPool.getSourceDir());
                    final Rbd rbd = new Rbd(io);
                    final RbdImage image = rbd.open(disk.getName());
                    if (command.getCommandSwitch().equalsIgnoreCase(ManageSnapshotCommand.CREATE_SNAPSHOT)) {
                        s_logger.debug("Attempting to create RBD snapshot " + disk.getName() + "@" + snapshotName);
                        image.snapCreate(snapshotName);
                    } else {
                        s_logger.debug("Attempting to remove RBD snapshot " + disk.getName() + "@" + snapshotName);
                        image.snapRemove(snapshotName);
                    }
                    rbd.close(image);
                    r.ioCtxDestroy(io);
                } catch (final Exception e) {
                    s_logger.error("A RBD snapshot operation on " + disk.getName() + " failed. The error was: " + e.getMessage());
                }
            } else {
                /* VM is not running, create a snapshot by ourself */
                final int cmdsTimeout = libvirtComputingResource.getCmdsTimeout();
                final String manageSnapshotPath = libvirtComputingResource.manageSnapshotPath();
                final Script scriptCommand = new Script(manageSnapshotPath, cmdsTimeout, s_logger);
                if (command.getCommandSwitch().equalsIgnoreCase(ManageSnapshotCommand.CREATE_SNAPSHOT)) {
                    scriptCommand.add("-c", disk.getPath());
                } else {
                    scriptCommand.add("-d", snapshotPath);
                }
                scriptCommand.add("-n", snapshotName);
                final String result = scriptCommand.execute();
                if (result != null) {
                    s_logger.debug("Failed to manage snapshot: " + result);
                    return new ManageSnapshotAnswer(command, false, "Failed to manage snapshot: " + result);
                }
            }
        }
        return new ManageSnapshotAnswer(command, command.getSnapshotId(), disk.getPath() + File.separator + snapshotName, true, null);
    } catch (final LibvirtException e) {
        s_logger.debug("Failed to manage snapshot: " + e.toString());
        return new ManageSnapshotAnswer(command, false, "Failed to manage snapshot: " + e.toString());
    }
}

Example 29 with DomainState

use of org.libvirt.DomainInfo.DomainState in project cloudstack by apache.

the class LibvirtMigrateCommandWrapper method execute.

@Override
public Answer execute(final MigrateCommand command, final LibvirtComputingResource libvirtComputingResource) {
    final String vmName = command.getVmName();
    final Map<String, Boolean> vlanToPersistenceMap = command.getVlanToPersistenceMap();
    final String destinationUri = createMigrationURI(command.getDestinationIp(), libvirtComputingResource);
    final List<MigrateDiskInfo> migrateDiskInfoList = command.getMigrateDiskInfoList();
    String result = null;
    List<InterfaceDef> ifaces = null;
    List<DiskDef> disks;
    Domain dm = null;
    Connect dconn = null;
    Domain destDomain = null;
    Connect conn = null;
    String xmlDesc = null;
    List<Ternary<String, Boolean, String>> vmsnapshots = null;
    try {
        final LibvirtUtilitiesHelper libvirtUtilitiesHelper = libvirtComputingResource.getLibvirtUtilitiesHelper();
        conn = libvirtUtilitiesHelper.getConnectionByVmName(vmName);
        ifaces = libvirtComputingResource.getInterfaces(conn, vmName);
        disks = libvirtComputingResource.getDisks(conn, vmName);
        VirtualMachineTO to = command.getVirtualMachine();
        dm = conn.domainLookupByName(vmName);
        /*
                We replace the private IP address with the address of the destination host.
                This is because the VNC listens on the private IP address of the hypervisor,
                but that address is of course different on the target host.

                MigrateCommand.getDestinationIp() returns the private IP address of the target
                hypervisor. So it's safe to use.

                The Domain.migrate method from libvirt supports passing a different XML
                description for the instance to be used on the target host.

                This is supported by libvirt-java from version 0.50.0

                CVE-2015-3252: Get XML with sensitive information suitable for migration by using
                               VIR_DOMAIN_XML_MIGRATABLE flag (value = 8)
                               https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainXMLFlags

                               Use VIR_DOMAIN_XML_SECURE (value = 1) prior to v1.0.0.
             */
        // 1000000 equals v1.0.0
        final int xmlFlag = conn.getLibVirVersion() >= 1000000 ? 8 : 1;
        final String target = command.getDestinationIp();
        xmlDesc = dm.getXMLDesc(xmlFlag);
        xmlDesc = replaceIpForVNCInDescFile(xmlDesc, target);
        String oldIsoVolumePath = getOldVolumePath(disks, vmName);
        String newIsoVolumePath = getNewVolumePathIfDatastoreHasChanged(libvirtComputingResource, conn, to);
        if (newIsoVolumePath != null && !newIsoVolumePath.equals(oldIsoVolumePath)) {
            s_logger.debug("Editing mount path");
            xmlDesc = replaceDiskSourceFile(xmlDesc, newIsoVolumePath, vmName);
        }
        // delete the metadata of vm snapshots before migration
        vmsnapshots = libvirtComputingResource.cleanVMSnapshotMetadata(dm);
        // Verify Format of backing file
        for (DiskDef disk : disks) {
            if (disk.getDeviceType() == DiskDef.DeviceType.DISK && disk.getDiskFormatType() == DiskDef.DiskFmtType.QCOW2) {
                libvirtComputingResource.setBackingFileFormat(disk.getDiskPath());
            }
        }
        Map<String, MigrateCommand.MigrateDiskInfo> mapMigrateStorage = command.getMigrateStorage();
        // migrateStorage is declared as final because the replaceStorage method may mutate mapMigrateStorage, but
        // migrateStorage's value should always only be associated with the initial state of mapMigrateStorage.
        final boolean migrateStorage = MapUtils.isNotEmpty(mapMigrateStorage);
        final boolean migrateStorageManaged = command.isMigrateStorageManaged();
        if (migrateStorage) {
            xmlDesc = replaceStorage(xmlDesc, mapMigrateStorage, migrateStorageManaged);
        }
        Map<String, DpdkTO> dpdkPortsMapping = command.getDpdkInterfaceMapping();
        if (MapUtils.isNotEmpty(dpdkPortsMapping)) {
            xmlDesc = replaceDpdkInterfaces(xmlDesc, dpdkPortsMapping);
        }
        dconn = libvirtUtilitiesHelper.retrieveQemuConnection(destinationUri);
        if (to.getType() == VirtualMachine.Type.User) {
            libvirtComputingResource.detachAndAttachConfigDriveISO(conn, vmName);
        }
        // run migration in thread so we can monitor it
        s_logger.info("Live migration of instance " + vmName + " initiated to destination host: " + dconn.getURI());
        final ExecutorService executor = Executors.newFixedThreadPool(1);
        boolean migrateNonSharedInc = command.isMigrateNonSharedInc() && !migrateStorageManaged;
        final Callable<Domain> worker = new MigrateKVMAsync(libvirtComputingResource, dm, dconn, xmlDesc, migrateStorage, migrateNonSharedInc, command.isAutoConvergence(), vmName, command.getDestinationIp());
        final Future<Domain> migrateThread = executor.submit(worker);
        executor.shutdown();
        long sleeptime = 0;
        while (!executor.isTerminated()) {
            Thread.sleep(100);
            sleeptime += 100;
            if (sleeptime == 1000) {
                // wait 1s before attempting to set downtime on migration, since I don't know of a VIR_DOMAIN_MIGRATING state
                final int migrateDowntime = libvirtComputingResource.getMigrateDowntime();
                if (migrateDowntime > 0) {
                    try {
                        final int setDowntime = dm.migrateSetMaxDowntime(migrateDowntime);
                        if (setDowntime == 0) {
                            s_logger.debug("Set max downtime for migration of " + vmName + " to " + String.valueOf(migrateDowntime) + "ms");
                        }
                    } catch (final LibvirtException e) {
                        s_logger.debug("Failed to set max downtime for migration, perhaps migration completed? Error: " + e.getMessage());
                    }
                }
            }
            if (sleeptime % 1000 == 0) {
                s_logger.info("Waiting for migration of " + vmName + " to complete, waited " + sleeptime + "ms");
            }
            // abort the vm migration if the job is executed more than vm.migrate.wait
            final int migrateWait = libvirtComputingResource.getMigrateWait();
            if (migrateWait > 0 && sleeptime > migrateWait * 1000) {
                DomainState state = null;
                try {
                    state = dm.getInfo().state;
                } catch (final LibvirtException e) {
                    s_logger.info("Couldn't get VM domain state after " + sleeptime + "ms: " + e.getMessage());
                }
                if (state != null && state == DomainState.VIR_DOMAIN_RUNNING) {
                    try {
                        DomainJobInfo job = dm.getJobInfo();
                        s_logger.info("Aborting " + vmName + " domain job: " + job);
                        dm.abortJob();
                        result = String.format("Migration of VM %s was cancelled by cloudstack due to time out after %d seconds", vmName, migrateWait);
                        s_logger.debug(result);
                        break;
                    } catch (final LibvirtException e) {
                        s_logger.info("Failed to abort the vm migration job of vm " + vmName + " : " + e.getMessage());
                    }
                }
            }
            // pause vm if we meet the vm.migrate.pauseafter threshold and not already paused
            final int migratePauseAfter = libvirtComputingResource.getMigratePauseAfter();
            if (migratePauseAfter > 0 && sleeptime > migratePauseAfter) {
                DomainState state = null;
                try {
                    state = dm.getInfo().state;
                } catch (final LibvirtException e) {
                    s_logger.info("Couldn't get VM domain state after " + sleeptime + "ms: " + e.getMessage());
                }
                if (state != null && state == DomainState.VIR_DOMAIN_RUNNING) {
                    try {
                        s_logger.info("Pausing VM " + vmName + " due to property vm.migrate.pauseafter setting to " + migratePauseAfter + "ms to complete migration");
                        dm.suspend();
                    } catch (final LibvirtException e) {
                        // pause could be racy if it attempts to pause right when vm is finished, simply warn
                        s_logger.info("Failed to pause vm " + vmName + " : " + e.getMessage());
                    }
                }
            }
        }
        s_logger.info("Migration thread for " + vmName + " is done");
        destDomain = migrateThread.get(AgentPropertiesFileHandler.getPropertyValue(AgentProperties.VM_MIGRATE_DOMAIN_RETRIEVE_TIMEOUT), TimeUnit.SECONDS);
        if (destDomain != null) {
            deleteOrDisconnectDisksOnSourcePool(libvirtComputingResource, migrateDiskInfoList, disks);
        }
    } catch (final LibvirtException e) {
        s_logger.debug("Can't migrate domain: " + e.getMessage());
        result = e.getMessage();
        if (result.startsWith("unable to connect to server") && result.endsWith("refused")) {
            result = String.format("Migration was refused connection to destination: %s. Please check libvirt configuration compatibility and firewall rules on the source and destination hosts.", destinationUri);
        }
    } catch (final InterruptedException | ExecutionException | TimeoutException | IOException | ParserConfigurationException | SAXException | TransformerException | URISyntaxException e) {
        s_logger.debug(String.format("%s : %s", e.getClass().getSimpleName(), e.getMessage()));
        if (result == null) {
            result = "Exception during migrate: " + e.getMessage();
        }
    } finally {
        try {
            if (dm != null && result != null) {
                // restore vm snapshots in case of failed migration
                if (vmsnapshots != null) {
                    libvirtComputingResource.restoreVMSnapshotMetadata(dm, vmName, vmsnapshots);
                }
            }
            if (dm != null) {
                if (dm.isPersistent() == 1) {
                    dm.undefine();
                }
                dm.free();
            }
            if (dconn != null) {
                dconn.close();
            }
            if (destDomain != null) {
                destDomain.free();
            }
        } catch (final LibvirtException e) {
            s_logger.trace("Ignoring libvirt error.", e);
        }
    }
    if (result != null) {
    } else {
        libvirtComputingResource.destroyNetworkRulesForVM(conn, vmName);
        for (final InterfaceDef iface : ifaces) {
            String vlanId = libvirtComputingResource.getVlanIdFromBridgeName(iface.getBrName());
            // We don't know which "traffic type" is associated with
            // each interface at this point, so inform all vif drivers
            final List<VifDriver> allVifDrivers = libvirtComputingResource.getAllVifDrivers();
            for (final VifDriver vifDriver : allVifDrivers) {
                vifDriver.unplug(iface, libvirtComputingResource.shouldDeleteBridge(vlanToPersistenceMap, vlanId));
            }
        }
    }
    return new MigrateAnswer(command, result == null, result, null);
}

Example 30 with DomainState

use of org.libvirt.DomainInfo.DomainState in project cloudstack by apache.

the class LibvirtStartCommandWrapper method execute.

@Override
public Answer execute(final StartCommand command, final LibvirtComputingResource libvirtComputingResource) {
    final VirtualMachineTO vmSpec = command.getVirtualMachine();
    vmSpec.setVncAddr(command.getHostIp());
    final String vmName = vmSpec.getName();
    LibvirtVMDef vm = null;
    DomainState state = DomainState.VIR_DOMAIN_SHUTOFF;
    final KVMStoragePoolManager storagePoolMgr = libvirtComputingResource.getStoragePoolMgr();
    final LibvirtUtilitiesHelper libvirtUtilitiesHelper = libvirtComputingResource.getLibvirtUtilitiesHelper();
    Connect conn = null;
    try {
        vm = libvirtComputingResource.createVMFromSpec(vmSpec);
        conn = libvirtUtilitiesHelper.getConnectionByType(vm.getHvsType());
        final NicTO[] nics = vmSpec.getNics();
        for (final NicTO nic : nics) {
            if (vmSpec.getType() != VirtualMachine.Type.User) {
                nic.setPxeDisable(true);
            }
        }
        libvirtComputingResource.createVbd(conn, vmSpec, vmName, vm);
        if (!storagePoolMgr.connectPhysicalDisksViaVmSpec(vmSpec)) {
            return new StartAnswer(command, "Failed to connect physical disks to host");
        }
        libvirtComputingResource.createVifs(vmSpec, vm);
        s_logger.debug("starting " + vmName + ": " + vm.toString());
        String vmInitialSpecification = vm.toString();
        String vmFinalSpecification = performXmlTransformHook(vmInitialSpecification, libvirtComputingResource);
        libvirtComputingResource.startVM(conn, vmName, vmFinalSpecification);
        performAgentStartHook(vmName, libvirtComputingResource);
        libvirtComputingResource.applyDefaultNetworkRules(conn, vmSpec, false);
        // pass cmdline info to system vms
        if (vmSpec.getType() != VirtualMachine.Type.User || (vmSpec.getBootArgs() != null && vmSpec.getBootArgs().contains(UserVmManager.CKS_NODE))) {
            // try to patch and SSH into the systemvm for up to 5 minutes
            for (int count = 0; count < 10; count++) {
                // wait and try passCmdLine for 30 seconds at most for CLOUDSTACK-2823
                if (libvirtComputingResource.passCmdLine(vmName, vmSpec.getBootArgs())) {
                    break;
                }
            }
            if (vmSpec.getType() != VirtualMachine.Type.User) {
                String controlIp = null;
                for (final NicTO nic : vmSpec.getNics()) {
                    if (nic.getType() == TrafficType.Control) {
                        controlIp = nic.getIp();
                        break;
                    }
                }
                final VirtualRoutingResource virtRouterResource = libvirtComputingResource.getVirtRouterResource();
                // check if the router is up?
                for (int count = 0; count < 60; count++) {
                    final boolean result = virtRouterResource.connect(controlIp, 1, 5000);
                    if (result) {
                        break;
                    }
                }
            }
        }
        state = DomainState.VIR_DOMAIN_RUNNING;
        return new StartAnswer(command);
    } catch (final LibvirtException e) {
        s_logger.warn("LibvirtException ", e);
        if (conn != null) {
            libvirtComputingResource.handleVmStartFailure(conn, vmName, vm);
        }
        return new StartAnswer(command, e.getMessage());
    } catch (final InternalErrorException e) {
        s_logger.warn("InternalErrorException ", e);
        if (conn != null) {
            libvirtComputingResource.handleVmStartFailure(conn, vmName, vm);
        }
        return new StartAnswer(command, e.getMessage());
    } catch (final URISyntaxException e) {
        s_logger.warn("URISyntaxException ", e);
        if (conn != null) {
            libvirtComputingResource.handleVmStartFailure(conn, vmName, vm);
        }
        return new StartAnswer(command, e.getMessage());
    } finally {
        if (state != DomainState.VIR_DOMAIN_RUNNING) {
            storagePoolMgr.disconnectPhysicalDisksViaVmSpec(vmSpec);
        }
    }
}