Examples with RbdImageInfo com.ceph.rbd.jna.RbdImageInfo used on opensource projects

Example 1 with RbdImageInfo

use of com.ceph.rbd.jna.RbdImageInfo in project cloudstack by apache.

the class LibvirtStorageAdaptor method copyPhysicalDisk.

/**
     * This copies a volume from Primary Storage to Secondary Storage
     *
     * In theory it could also do it the other way around, but the current implementation
     * in ManagementServerImpl shows that the destPool is always a Secondary Storage Pool
     */
@Override
public KVMPhysicalDisk copyPhysicalDisk(KVMPhysicalDisk disk, String name, KVMStoragePool destPool, int timeout) {
    /**
            With RBD you can't run qemu-img convert with an existing RBD image as destination
            qemu-img will exit with the error that the destination already exists.
            So for RBD we don't create the image, but let qemu-img do that for us.

            We then create a KVMPhysicalDisk object that we can return

            It is however very unlikely that the destPool will be RBD, since it isn't supported
            for Secondary Storage
         */
    KVMStoragePool srcPool = disk.getPool();
    PhysicalDiskFormat sourceFormat = disk.getFormat();
    String sourcePath = disk.getPath();
    KVMPhysicalDisk newDisk;
    s_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, Storage.ProvisioningType.THIN, disk.getVirtualSize());
        } else {
            newDisk = destPool.createPhysicalDisk(name, Storage.ProvisioningType.THIN, disk.getVirtualSize());
        }
    } else {
        newDisk = new KVMPhysicalDisk(destPool.getSourceDir() + "/" + name, name, destPool);
        newDisk.setFormat(PhysicalDiskFormat.RAW);
        newDisk.setSize(disk.getVirtualSize());
        newDisk.setVirtualSize(disk.getSize());
    }
    String destPath = newDisk.getPath();
    PhysicalDiskFormat destFormat = newDisk.getFormat();
    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 {
                Map<String, String> info = qemu.info(srcFile);
                String backingFile = info.get(new String("backing_file"));
                // qcow2 templates can just be copied into place
                if (sourceFormat.equals(destFormat) && backingFile == null && sourcePath.endsWith(".qcow2")) {
                    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);
                        Map<String, String> destInfo = qemu.info(destFile);
                        Long virtualSize = Long.parseLong(destInfo.get(new String("virtual_size")));
                        newDisk.setVirtualSize(virtualSize);
                        newDisk.setSize(virtualSize);
                    } catch (QemuImgException e) {
                        s_logger.error("Failed to convert " + srcFile.getFileName() + " to " + destFile.getFileName() + " the error was: " + e.getMessage());
                        newDisk = null;
                    }
                }
            } catch (QemuImgException e) {
                s_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)
             */
        s_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);
            String rbdDestPath = destPool.getSourceDir() + "/" + name;
            String rbdDestFile = KVMPhysicalDisk.RBDStringBuilder(destPool.getSourceHost(), destPool.getSourcePort(), destPool.getAuthUserName(), destPool.getAuthSecret(), rbdDestPath);
            destFile = new QemuImgFile(rbdDestFile, destFormat);
            s_logger.debug("Starting copy from source image " + srcFile.getFileName() + " to RBD image " + rbdDestPath);
            qemu.convert(srcFile, destFile);
            s_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 */
            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();
            s_logger.debug("Succesfully connected to Ceph cluster at " + r.confGet("mon_host"));
            IoCTX io = r.ioCtxCreate(destPool.getSourceDir());
            Rbd rbd = new Rbd(io);
            RbdImage image = rbd.open(name);
            RbdImageInfo rbdInfo = image.stat();
            newDisk.setSize(rbdInfo.size);
            newDisk.setVirtualSize(rbdInfo.size);
            s_logger.debug("After copy the resulting RBD image " + rbdDestPath + " is " + rbdInfo.size + " bytes long");
            rbd.close(image);
            r.ioCtxDestroy(io);
        } catch (QemuImgException e) {
            s_logger.error("Failed to convert from " + srcFile.getFileName() + " to " + destFile.getFileName() + " the error was: " + e.getMessage());
            newDisk = null;
        } catch (RadosException e) {
            s_logger.error("A Ceph RADOS operation failed (" + e.getReturnValue() + "). The error was: " + e.getMessage());
            newDisk = null;
        } catch (RbdException e) {
            s_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 (QemuImgException e) {
            s_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;
}