Examples with QemuImg com.cloud.agent.resource.kvm.storage.utils.QemuImg used on opensource projects

Example 1 with QemuImg

use of com.cloud.agent.resource.kvm.storage.utils.QemuImg in project cosmic by MissionCriticalCloud.

the class KvmStorageProcessor method backupSnapshot.

@Override
public Answer backupSnapshot(final CopyCommand cmd) {
    final DataTO srcData = cmd.getSrcTO();
    final DataTO destData = cmd.getDestTO();
    final SnapshotObjectTO snapshot = (SnapshotObjectTO) srcData;
    final PrimaryDataStoreTO primaryStore = (PrimaryDataStoreTO) snapshot.getDataStore();
    final SnapshotObjectTO destSnapshot = (SnapshotObjectTO) destData;
    final DataStoreTO imageStore = destData.getDataStore();
    final NfsTO nfsImageStore = (NfsTO) imageStore;
    final String secondaryStoragePoolUrl = nfsImageStore.getUrl();
    // NOTE: snapshot name is encoded in snapshot path
    final int index = snapshot.getPath().lastIndexOf("/");
    // -1 means the snapshot is created from existing vm snapshot
    final boolean isCreatedFromVmSnapshot = index == -1;
    final String snapshotName = snapshot.getPath().substring(index + 1);
    String descName = snapshotName;
    final String volumePath = snapshot.getVolume().getPath();
    final String snapshotDestPath;
    final String snapshotRelPath;
    final String vmName = snapshot.getVmName();
    KvmStoragePool secondaryStoragePool = null;
    Connect conn = null;
    KvmPhysicalDisk snapshotDisk = null;
    KvmStoragePool primaryPool = null;
    try {
        conn = LibvirtConnection.getConnectionByVmName(vmName);
        secondaryStoragePool = this.storagePoolMgr.getStoragePoolByUri(secondaryStoragePoolUrl);
        final String ssPmountPath = secondaryStoragePool.getLocalPath();
        snapshotRelPath = destSnapshot.getPath();
        snapshotDestPath = ssPmountPath + File.separator + snapshotRelPath;
        snapshotDisk = this.storagePoolMgr.getPhysicalDisk(primaryStore.getPoolType(), primaryStore.getUuid(), volumePath);
        primaryPool = snapshotDisk.getPool();
        long size = 0;
        if (primaryPool.getType() == StoragePoolType.RBD) {
            final String rbdSnapshot = snapshotDisk.getPath() + "@" + snapshotName;
            final String snapshotFile = snapshotDestPath + "/" + snapshotName;
            try {
                this.logger.debug("Attempting to backup RBD snapshot " + rbdSnapshot);
                final File snapDir = new File(snapshotDestPath);
                this.logger.debug("Attempting to create " + snapDir.getAbsolutePath() + " recursively for snapshot storage");
                FileUtils.forceMkdir(snapDir);
                final QemuImgFile srcFile = new QemuImgFile(KvmPhysicalDisk.rbdStringBuilder(primaryPool.getSourceHost(), primaryPool.getSourcePort(), primaryPool.getAuthUserName(), primaryPool.getAuthSecret(), rbdSnapshot));
                srcFile.setFormat(snapshotDisk.getFormat());
                final QemuImgFile destFile = new QemuImgFile(snapshotFile);
                destFile.setFormat(PhysicalDiskFormat.QCOW2);
                this.logger.debug("Backing up RBD snapshot " + rbdSnapshot + " to " + snapshotFile);
                final QemuImg q = new QemuImg(cmd.getWaitInMillSeconds());
                q.convert(srcFile, destFile);
                final File snapFile = new File(snapshotFile);
                if (snapFile.exists()) {
                    size = snapFile.length();
                }
                this.logger.debug("Finished backing up RBD snapshot " + rbdSnapshot + " to " + snapshotFile + " Snapshot size: " + size);
            } catch (final FileNotFoundException e) {
                this.logger.error("Failed to open " + snapshotDestPath + ". The error was: " + e.getMessage());
                return new CopyCmdAnswer(e.toString());
            } catch (final IOException e) {
                this.logger.error("Failed to create " + snapshotDestPath + ". The error was: " + e.getMessage());
                return new CopyCmdAnswer(e.toString());
            } catch (final QemuImgException e) {
                this.logger.error("Failed to backup the RBD snapshot from " + rbdSnapshot + " to " + snapshotFile + " the error was: " + e.getMessage());
                return new CopyCmdAnswer(e.toString());
            }
        } else {
            final Script command = new Script(this.manageSnapshotPath, cmd.getWaitInMillSeconds(), this.logger);
            command.add("-b", snapshotDisk.getPath());
            command.add("-n", snapshotName);
            command.add("-p", snapshotDestPath);
            if (isCreatedFromVmSnapshot) {
                descName = UUID.randomUUID().toString();
            }
            command.add("-t", descName);
            final String result = command.execute();
            if (result != null) {
                this.logger.debug("Failed to backup snaptshot: " + result);
                return new CopyCmdAnswer(result);
            }
            final File snapFile = new File(snapshotDestPath + "/" + descName);
            if (snapFile.exists()) {
                size = snapFile.length();
            }
        }
        final SnapshotObjectTO newSnapshot = new SnapshotObjectTO();
        newSnapshot.setPath(snapshotRelPath + File.separator + descName);
        newSnapshot.setPhysicalSize(size);
        return new CopyCmdAnswer(newSnapshot);
    } catch (final LibvirtException | CloudRuntimeException e) {
        this.logger.debug("Failed to backup snapshot: ", e);
        return new CopyCmdAnswer(e.toString());
    } finally {
        if (isCreatedFromVmSnapshot) {
            this.logger.debug("Ignoring removal of vm snapshot on primary as this snapshot is created from vm snapshot");
        } else {
            try {
                /* Delete the snapshot on primary */
                DomainState state = null;
                Domain vm = null;
                if (vmName != null) {
                    try {
                        vm = this.resource.getDomain(conn, vmName);
                        state = vm.getInfo().state;
                    } catch (final LibvirtException e) {
                        this.logger.trace("Ignoring libvirt error.", e);
                    }
                }
                final KvmStoragePool primaryStorage = this.storagePoolMgr.getStoragePool(primaryStore.getPoolType(), primaryStore.getUuid());
                if (state == DomainState.VIR_DOMAIN_RUNNING && !primaryStorage.isExternalSnapshot()) {
                    final DomainSnapshot snap = vm.snapshotLookupByName(snapshotName);
                    snap.delete(0);
                    /*
                         * libvirt on RHEL6 doesn't handle resume event emitted from
                         * qemu
                         */
                    vm = this.resource.getDomain(conn, vmName);
                    state = vm.getInfo().state;
                    if (state == DomainInfo.DomainState.VIR_DOMAIN_PAUSED) {
                        vm.resume();
                    }
                } else {
                    if (primaryPool.getType() != StoragePoolType.RBD) {
                        final Script command = new Script(this.manageSnapshotPath, this.cmdsTimeout, this.logger);
                        command.add("-d", snapshotDisk.getPath());
                        command.add("-n", snapshotName);
                        final String result = command.execute();
                        if (result != null) {
                            this.logger.debug("Failed to delete snapshot on primary: " + result);
                        // return new CopyCmdAnswer("Failed to backup snapshot: " + result);
                        }
                    }
                }
            } catch (final Exception ex) {
                this.logger.debug("Failed to delete snapshots on primary", ex);
            }
        }
        try {
            if (secondaryStoragePool != null) {
                secondaryStoragePool.delete();
            }
        } catch (final Exception ex) {
            this.logger.debug("Failed to delete secondary storage", ex);
        }
    }
}

Example 2 with QemuImg

use of com.cloud.agent.resource.kvm.storage.utils.QemuImg in project cosmic by MissionCriticalCloud.

the class KvmStorageProcessor method createTemplateFromVolume.

@Override
public Answer createTemplateFromVolume(final CopyCommand cmd) {
    final DataTO srcData = cmd.getSrcTO();
    final DataTO destData = cmd.getDestTO();
    final int wait = cmd.getWaitInMillSeconds();
    final TemplateObjectTO template = (TemplateObjectTO) destData;
    final DataStoreTO imageStore = template.getDataStore();
    final VolumeObjectTO volume = (VolumeObjectTO) srcData;
    final PrimaryDataStoreTO primaryStore = (PrimaryDataStoreTO) volume.getDataStore();
    if (!(imageStore instanceof NfsTO)) {
        return new CopyCmdAnswer("unsupported protocol");
    }
    final NfsTO nfsImageStore = (NfsTO) imageStore;
    KvmStoragePool secondaryStorage = null;
    final KvmStoragePool primary;
    try {
        final String templateFolder = template.getPath();
        secondaryStorage = this.storagePoolMgr.getStoragePoolByUri(nfsImageStore.getUrl());
        primary = this.storagePoolMgr.getStoragePool(primaryStore.getPoolType(), primaryStore.getUuid());
        final KvmPhysicalDisk disk = this.storagePoolMgr.getPhysicalDisk(primaryStore.getPoolType(), primaryStore.getUuid(), volume.getPath());
        final String tmpltPath = secondaryStorage.getLocalPath() + File.separator + templateFolder;
        this.storageLayer.mkdirs(tmpltPath);
        final String templateName = UUID.randomUUID().toString();
        if (primary.getType() != StoragePoolType.RBD) {
            final Script command = new Script(this.createTmplPath, wait, this.logger);
            command.add("-f", disk.getPath());
            command.add("-t", tmpltPath);
            command.add("-n", templateName + ".qcow2");
            final String result = command.execute();
            if (result != null) {
                this.logger.debug("failed to create template: " + result);
                return new CopyCmdAnswer(result);
            }
        } else {
            this.logger.debug("Converting RBD disk " + disk.getPath() + " into template " + templateName);
            final QemuImgFile srcFile = new QemuImgFile(KvmPhysicalDisk.rbdStringBuilder(primary.getSourceHost(), primary.getSourcePort(), primary.getAuthUserName(), primary.getAuthSecret(), disk.getPath()));
            srcFile.setFormat(PhysicalDiskFormat.RAW);
            final QemuImgFile destFile = new QemuImgFile(tmpltPath + "/" + templateName + ".qcow2");
            destFile.setFormat(PhysicalDiskFormat.QCOW2);
            final QemuImg q = new QemuImg(cmd.getWaitInMillSeconds());
            try {
                q.convert(srcFile, destFile);
            } catch (final QemuImgException e) {
                final String message = "Failed to create new template while converting " + srcFile.getFileName() + " to " + destFile.getFileName() + " the error was: " + e.getMessage();
                throw new QemuImgException(message);
            }
            final File templateProp = new File(tmpltPath + "/template.properties");
            if (!templateProp.exists()) {
                templateProp.createNewFile();
            }
            String templateContent = "filename=" + templateName + ".qcow2" + System.getProperty("line.separator");
            final DateFormat dateFormat = new SimpleDateFormat("MM_dd_yyyy");
            final Date date = new Date();
            templateContent += "snapshot.name=" + dateFormat.format(date) + System.getProperty("line.separator");
            try (final FileOutputStream templFo = new FileOutputStream(templateProp)) {
                templFo.write(templateContent.getBytes());
                templFo.flush();
            } catch (final IOException e) {
                throw e;
            }
        }
        final Map<String, Object> params = new HashMap<>();
        params.put(StorageLayer.InstanceConfigKey, this.storageLayer);
        final Processor qcow2Processor = new QCOW2Processor();
        qcow2Processor.configure("QCOW2 Processor", params);
        final TemplateFormatInfo info = qcow2Processor.process(tmpltPath, null, templateName);
        final TemplateLocation loc = new TemplateLocation(this.storageLayer, tmpltPath);
        loc.create(1, true, templateName);
        loc.addFormat(info);
        loc.save();
        final TemplateObjectTO newTemplate = new TemplateObjectTO();
        newTemplate.setPath(templateFolder + File.separator + templateName + ".qcow2");
        newTemplate.setSize(info.virtualSize);
        newTemplate.setPhysicalSize(info.size);
        newTemplate.setFormat(ImageFormat.QCOW2);
        newTemplate.setName(templateName);
        return new CopyCmdAnswer(newTemplate);
    } catch (final QemuImgException e) {
        this.logger.error(e.getMessage());
        return new CopyCmdAnswer(e.toString());
    } catch (final Exception e) {
        this.logger.debug("Failed to createTemplateFromVolume: ", e);
        return new CopyCmdAnswer(e.toString());
    } finally {
        if (secondaryStorage != null) {
            secondaryStorage.delete();
        }
    }
}

Example 3 with QemuImg

use of com.cloud.agent.resource.kvm.storage.utils.QemuImg in project cosmic by MissionCriticalCloud.

the class LibvirtStorageAdaptor method copyPhysicalDisk.

@Override
public KvmPhysicalDisk copyPhysicalDisk(final KvmPhysicalDisk disk, final String name, final KvmStoragePool destPool, final int timeout) {
    final KvmStoragePool srcPool = disk.getPool();
    final PhysicalDiskFormat sourceFormat = disk.getFormat();
    final String sourcePath = disk.getPath();
    KvmPhysicalDisk newDisk;
    this.logger.debug("copyPhysicalDisk: disk size:" + disk.getSize() + ", virtualsize:" + disk.getVirtualSize() + " format:" + disk.getFormat());
    if (destPool.getType() != StoragePoolType.RBD) {
        if (disk.getFormat() == PhysicalDiskFormat.TAR) {
            newDisk = destPool.createPhysicalDisk(name, PhysicalDiskFormat.DIR, StorageProvisioningType.THIN, disk.getVirtualSize());
        } else {
            newDisk = destPool.createPhysicalDisk(name, StorageProvisioningType.THIN, disk.getVirtualSize());
        }
    } else {
        newDisk = new KvmPhysicalDisk(destPool.getSourceDir() + "/" + name, name, destPool);
        newDisk.setFormat(PhysicalDiskFormat.RAW);
        newDisk.setSize(disk.getVirtualSize());
        newDisk.setVirtualSize(disk.getSize());
    }
    final String destPath = newDisk.getPath();
    final PhysicalDiskFormat destFormat = newDisk.getFormat();
    final QemuImg qemu = new QemuImg(timeout);
    QemuImgFile srcFile = null;
    QemuImgFile destFile = null;
    if (srcPool.getType() != StoragePoolType.RBD && destPool.getType() != StoragePoolType.RBD) {
        if (sourceFormat == PhysicalDiskFormat.TAR && destFormat == PhysicalDiskFormat.DIR) {
            // LXC template
            Script.runSimpleBashScript("cp " + sourcePath + " " + destPath);
        } else if (sourceFormat == PhysicalDiskFormat.TAR) {
            Script.runSimpleBashScript("tar -x -f " + sourcePath + " -C " + destPath, timeout);
        } else if (sourceFormat == PhysicalDiskFormat.DIR) {
            Script.runSimpleBashScript("mkdir -p " + destPath);
            Script.runSimpleBashScript("chmod 755 " + destPath);
            Script.runSimpleBashScript("cp -p -r " + sourcePath + "/* " + destPath, timeout);
        } else {
            srcFile = new QemuImgFile(sourcePath, sourceFormat);
            try {
                final Map<String, String> info = qemu.info(srcFile);
                final String backingFile = info.get("backing_file");
                // qcow2 templates can just be copied into place
                if (sourceFormat.equals(destFormat) && backingFile == null) {
                    final String result = Script.runSimpleBashScript("cp -f " + sourcePath + " " + destPath, timeout);
                    if (result != null) {
                        throw new CloudRuntimeException("Failed to create disk: " + result);
                    }
                } else {
                    destFile = new QemuImgFile(destPath, destFormat);
                    try {
                        qemu.convert(srcFile, destFile);
                        final Map<String, String> destInfo = qemu.info(destFile);
                        final Long virtualSize = Long.parseLong(destInfo.get("virtual_size"));
                        newDisk.setVirtualSize(virtualSize);
                        newDisk.setSize(virtualSize);
                    } catch (final QemuImgException e) {
                        this.logger.error("Failed to convert " + srcFile.getFileName() + " to " + destFile.getFileName() + " the error was: " + e.getMessage());
                        newDisk = null;
                    }
                }
            } catch (final QemuImgException e) {
                this.logger.error("Failed to fetch the information of file " + srcFile.getFileName() + " the error was: " + e.getMessage());
                newDisk = null;
            }
        }
    } else if (srcPool.getType() != StoragePoolType.RBD && destPool.getType() == StoragePoolType.RBD) {
        /**
         * Using qemu-img we copy the QCOW2 disk to RAW (on RBD) directly. To do so it's mandatory that librbd on the
         * system is at least 0.67.7 (Ceph Dumpling)
         */
        this.logger.debug("The source image is not RBD, but the destination is. We will convert into RBD format 2");
        try {
            srcFile = new QemuImgFile(sourcePath, sourceFormat);
            final String rbdDestPath = destPool.getSourceDir() + "/" + name;
            final String rbdDestFile = KvmPhysicalDisk.rbdStringBuilder(destPool.getSourceHost(), destPool.getSourcePort(), destPool.getAuthUserName(), destPool.getAuthSecret(), rbdDestPath);
            destFile = new QemuImgFile(rbdDestFile, destFormat);
            this.logger.debug("Starting copy from source image " + srcFile.getFileName() + " to RBD image " + rbdDestPath);
            qemu.convert(srcFile, destFile);
            this.logger.debug("Succesfully converted source image " + srcFile.getFileName() + " to RBD image " + rbdDestPath);
            /* We have to stat the RBD image to see how big it became afterwards */
            final Rados r = new Rados(destPool.getAuthUserName());
            r.confSet("mon_host", destPool.getSourceHost() + ":" + destPool.getSourcePort());
            r.confSet("key", destPool.getAuthSecret());
            r.confSet("client_mount_timeout", "30");
            r.connect();
            this.logger.debug("Succesfully connected to Ceph cluster at " + r.confGet("mon_host"));
            final IoCTX io = r.ioCtxCreate(destPool.getSourceDir());
            final Rbd rbd = new Rbd(io);
            final RbdImage image = rbd.open(name);
            final RbdImageInfo rbdInfo = image.stat();
            newDisk.setSize(rbdInfo.size);
            newDisk.setVirtualSize(rbdInfo.size);
            this.logger.debug("After copy the resulting RBD image " + rbdDestPath + " is " + rbdInfo.size + " bytes long");
            rbd.close(image);
            r.ioCtxDestroy(io);
        } catch (final QemuImgException e) {
            this.logger.error("Failed to convert from " + srcFile.getFileName() + " to " + destFile.getFileName() + " the error was: " + e.getMessage());
            newDisk = null;
        } catch (final RadosException e) {
            this.logger.error("A Ceph RADOS operation failed (" + e.getReturnValue() + "). The error was: " + e.getMessage());
            newDisk = null;
        } catch (final RbdException e) {
            this.logger.error("A Ceph RBD operation failed (" + e.getReturnValue() + "). The error was: " + e.getMessage());
            newDisk = null;
        }
    } else {
        /**
         * We let Qemu-Img do the work here. Although we could work with librbd and have that do the cloning it doesn't
         * benefit us. It's better to keep the current code in place which works
         */
        srcFile = new QemuImgFile(KvmPhysicalDisk.rbdStringBuilder(srcPool.getSourceHost(), srcPool.getSourcePort(), srcPool.getAuthUserName(), srcPool.getAuthSecret(), sourcePath));
        srcFile.setFormat(sourceFormat);
        destFile = new QemuImgFile(destPath);
        destFile.setFormat(destFormat);
        try {
            qemu.convert(srcFile, destFile);
        } catch (final QemuImgException e) {
            this.logger.error("Failed to convert " + srcFile.getFileName() + " to " + destFile.getFileName() + " the error was: " + e.getMessage());
            newDisk = null;
        }
    }
    if (newDisk == null) {
        throw new CloudRuntimeException("Failed to copy " + disk.getPath() + " to " + name);
    }
    return newDisk;
}

Example 4 with QemuImg

use of com.cloud.agent.resource.kvm.storage.utils.QemuImg in project cosmic by MissionCriticalCloud.

the class LibvirtStorageAdaptor method createPhysicalDiskByQemuImg.

private KvmPhysicalDisk createPhysicalDiskByQemuImg(final String name, final KvmStoragePool pool, final PhysicalDiskFormat format, final StorageProvisioningType provisioningType, final long size) {
    final String volPath = pool.getLocalPath() + "/" + name;
    long virtualSize = 0;
    long actualSize = 0;
    final int timeout = 0;
    final QemuImgFile destFile = new QemuImgFile(volPath);
    destFile.setFormat(format);
    destFile.setSize(size);
    final QemuImg qemu = new QemuImg(timeout);
    final Map<String, String> options = new HashMap<>();
    if (pool.getType() == StoragePoolType.NetworkFilesystem) {
        options.put("preallocation", PreallocationType.getPreallocationType(provisioningType).toString().toLowerCase());
    }
    try {
        qemu.create(destFile, options);
        final Map<String, String> info = qemu.info(destFile);
        virtualSize = Long.parseLong(info.get("virtual_size"));
        actualSize = new File(destFile.getFileName()).length();
    } catch (final QemuImgException e) {
        this.logger.error("Failed to create " + volPath + " due to a failed executing of qemu-img: " + e.getMessage());
        throw new CloudRuntimeException(e.toString());
    }
    final KvmPhysicalDisk disk = new KvmPhysicalDisk(volPath, name, pool);
    disk.setFormat(format);
    disk.setSize(actualSize);
    disk.setVirtualSize(virtualSize);
    return disk;
}

Example 5 with QemuImg

use of com.cloud.agent.resource.kvm.storage.utils.QemuImg in project cosmic by MissionCriticalCloud.

the class LibvirtStorageAdaptor method createDiskFromTemplate.

@Override
public KvmPhysicalDisk createDiskFromTemplate(final KvmPhysicalDisk template, final String name, final PhysicalDiskFormat format, final StorageProvisioningType provisioningType, final long size, final KvmStoragePool destPool, final int timeout) {
    this.logger.info("Creating volume " + name + " from template " + template.getName() + " in pool " + destPool.getUuid() + " (" + destPool.getType().toString() + ") with size " + size);
    KvmPhysicalDisk disk = null;
    if (destPool.getType() == StoragePoolType.RBD) {
        disk = createDiskFromTemplateOnRbd(template, name, size, destPool, timeout);
    } else {
        try {
            disk = destPool.createPhysicalDisk(name, format, provisioningType, template.getVirtualSize());
            if (disk == null) {
                throw new CloudRuntimeException("Failed to create disk from template " + template.getName());
            }
            if (template.getFormat() == PhysicalDiskFormat.TAR) {
                Script.runSimpleBashScript("tar -x -f " + template.getPath() + " -C " + disk.getPath(), timeout);
            } else if (template.getFormat() == PhysicalDiskFormat.DIR) {
                Script.runSimpleBashScript("mkdir -p " + disk.getPath());
                Script.runSimpleBashScript("chmod 755 " + disk.getPath());
                Script.runSimpleBashScript("tar -x -f " + template.getPath() + "/*.tar -C " + disk.getPath(), timeout);
            } else if (format == PhysicalDiskFormat.QCOW2) {
                final QemuImg qemu = new QemuImg(timeout);
                final QemuImgFile destFile = new QemuImgFile(disk.getPath(), format);
                if (size > template.getVirtualSize()) {
                    destFile.setSize(size);
                } else {
                    destFile.setSize(template.getVirtualSize());
                }
                final Map<String, String> options = new HashMap<>();
                options.put("preallocation", PreallocationType.getPreallocationType(provisioningType).toString().toLowerCase());
                switch(provisioningType) {
                    case THIN:
                        final QemuImgFile backingFile = new QemuImgFile(template.getPath(), template.getFormat());
                        qemu.create(destFile, backingFile, options);
                        break;
                    case SPARSE:
                    case FAT:
                        final QemuImgFile srcFile = new QemuImgFile(template.getPath(), template.getFormat());
                        qemu.convert(srcFile, destFile, options);
                        break;
                    default:
                        break;
                }
            } else if (format == PhysicalDiskFormat.RAW) {
                final QemuImgFile sourceFile = new QemuImgFile(template.getPath(), template.getFormat());
                final QemuImgFile destFile = new QemuImgFile(disk.getPath(), PhysicalDiskFormat.RAW);
                if (size > template.getVirtualSize()) {
                    destFile.setSize(size);
                } else {
                    destFile.setSize(template.getVirtualSize());
                }
                final QemuImg qemu = new QemuImg(timeout);
                final Map<String, String> options = new HashMap<>();
                qemu.convert(sourceFile, destFile, options);
            }
        } catch (final QemuImgException e) {
            this.logger.error("Failed to create " + disk.getPath() + " due to a failed executing of qemu-img: " + e.getMessage());
        }
    }
    return disk;
}