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

Example 1 with QemuImgFile

use of com.cloud.agent.resource.kvm.storage.utils.QemuImgFile 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 QemuImgFile

use of com.cloud.agent.resource.kvm.storage.utils.QemuImgFile 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 QemuImgFile

use of com.cloud.agent.resource.kvm.storage.utils.QemuImgFile 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 QemuImgFile

use of com.cloud.agent.resource.kvm.storage.utils.QemuImgFile 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 QemuImgFile

use of com.cloud.agent.resource.kvm.storage.utils.QemuImgFile 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;
}