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

Example 16 with StorageVol

use of org.libvirt.StorageVol in project cosmic by MissionCriticalCloud.

the class LibvirtStorageAdaptor method getVolume.

public StorageVol getVolume(final StoragePool pool, final String volName) {
    StorageVol vol = null;
    try {
        vol = pool.storageVolLookupByName(volName);
    } catch (final LibvirtException e) {
        logger.debug("Could not find volume " + volName + ": " + e.getMessage());
    }
    /**
     * The volume was not found in the storage pool This can happen when a volume has just been created on a different
     * host and since then the libvirt storage pool has not been refreshed.
     */
    if (vol == null) {
        try {
            logger.debug("Refreshing storage pool " + pool.getName());
            refreshPool(pool);
        } catch (final LibvirtException e) {
            logger.debug("Failed to refresh storage pool: " + e.getMessage());
        }
        try {
            vol = pool.storageVolLookupByName(volName);
            logger.debug("Found volume " + volName + " in storage pool " + pool.getName() + " after refreshing the pool");
        } catch (final LibvirtException e) {
            throw new CloudRuntimeException("Could not find volume " + volName + ": " + e.getMessage());
        }
    }
    return vol;
}

Example 17 with StorageVol

use of org.libvirt.StorageVol in project cosmic by MissionCriticalCloud.

the class ManagedNfsStorageAdaptor method getPhysicalDisk.

/*
     * creates a disk based on the created nfs storage pool using libvirt
     */
@Override
public KvmPhysicalDisk getPhysicalDisk(final String volumeUuid, final KvmStoragePool pool) {
    // now create the volume upon the given storage pool in kvm
    final Connect conn;
    StoragePool virtPool = null;
    try {
        conn = LibvirtConnection.getConnection();
        virtPool = conn.storagePoolLookupByName("/" + volumeUuid);
    } catch (final LibvirtException e1) {
        throw new CloudRuntimeException(e1.toString());
    }
    LibvirtStorageVolumeDef.VolumeFormat libvirtformat = null;
    long volCapacity = 0;
    // check whether the volume is present on the given pool
    StorageVol vol = getVolume(virtPool, volumeUuid);
    try {
        if (vol == null) {
            libvirtformat = LibvirtStorageVolumeDef.VolumeFormat.QCOW2;
            final StoragePoolInfo poolinfo = virtPool.getInfo();
            volCapacity = poolinfo.available;
            final LibvirtStorageVolumeDef volDef = new LibvirtStorageVolumeDef(volumeUuid, volCapacity, libvirtformat, null, null);
            logger.debug(volDef.toString());
            vol = virtPool.storageVolCreateXML(volDef.toString(), 0);
        }
        final KvmPhysicalDisk disk = new KvmPhysicalDisk(vol.getPath(), volumeUuid, pool);
        disk.setFormat(PhysicalDiskFormat.QCOW2);
        disk.setSize(vol.getInfo().allocation);
        disk.setVirtualSize(vol.getInfo().capacity);
        return disk;
    } catch (final LibvirtException e) {
        throw new CloudRuntimeException(e.toString());
    }
}

Example 18 with StorageVol

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

the class LibvirtMigrateCommandWrapper method deleteLocalVolume.

/**
 * Deletes the local volume from the storage pool.
 */
protected void deleteLocalVolume(String localPath) {
    try {
        Connect conn = LibvirtConnection.getConnection();
        StorageVol storageVolLookupByPath = conn.storageVolLookupByPath(localPath);
        storageVolLookupByPath.delete(0);
    } catch (LibvirtException e) {
        s_logger.error(String.format("Cannot delete local volume [%s] due to: %s", localPath, e));
    }
}

Example 19 with StorageVol

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

the class LibvirtStorageAdaptor method getPhysicalDisk.

@Override
public KVMPhysicalDisk getPhysicalDisk(String volumeUuid, KVMStoragePool pool) {
    LibvirtStoragePool libvirtPool = (LibvirtStoragePool) pool;
    try {
        StorageVol vol = getVolume(libvirtPool.getPool(), volumeUuid);
        KVMPhysicalDisk disk;
        LibvirtStorageVolumeDef voldef = getStorageVolumeDef(libvirtPool.getPool().getConnect(), vol);
        disk = new KVMPhysicalDisk(vol.getPath(), vol.getName(), pool);
        disk.setSize(vol.getInfo().allocation);
        disk.setVirtualSize(vol.getInfo().capacity);
        /**
         * libvirt returns format = 'unknow', so we have to force
         * the format to RAW for RBD storage volumes
         */
        if (pool.getType() == StoragePoolType.RBD) {
            disk.setFormat(PhysicalDiskFormat.RAW);
        } else if (voldef.getFormat() == null) {
            File diskDir = new File(disk.getPath());
            if (diskDir.exists() && diskDir.isDirectory()) {
                disk.setFormat(PhysicalDiskFormat.DIR);
            } else if (volumeUuid.endsWith("tar") || volumeUuid.endsWith(("TAR"))) {
                disk.setFormat(PhysicalDiskFormat.TAR);
            } else if (volumeUuid.endsWith("raw") || volumeUuid.endsWith(("RAW"))) {
                disk.setFormat(PhysicalDiskFormat.RAW);
            } else {
                disk.setFormat(pool.getDefaultFormat());
            }
        } else if (voldef.getFormat() == LibvirtStorageVolumeDef.VolumeFormat.QCOW2) {
            disk.setFormat(PhysicalDiskFormat.QCOW2);
        } else if (voldef.getFormat() == LibvirtStorageVolumeDef.VolumeFormat.RAW) {
            disk.setFormat(PhysicalDiskFormat.RAW);
        }
        return disk;
    } catch (LibvirtException e) {
        s_logger.debug("Failed to get physical disk:", e);
        throw new CloudRuntimeException(e.toString());
    }
}

Example 20 with StorageVol

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

the class LibvirtStorageAdaptor method deletePhysicalDisk.

@Override
public boolean deletePhysicalDisk(String uuid, KVMStoragePool pool, Storage.ImageFormat format) {
    s_logger.info("Attempting to remove volume " + uuid + " from pool " + pool.getUuid());
    /**
     * RBD volume can have snapshots and while they exist libvirt
     * can't remove the RBD volume
     *
     * We have to remove those snapshots first
     */
    if (pool.getType() == StoragePoolType.RBD) {
        try {
            s_logger.info("Unprotecting and Removing RBD snapshots of image " + pool.getSourceDir() + "/" + uuid + " prior to removing the image");
            Rados r = new Rados(pool.getAuthUserName());
            r.confSet("mon_host", pool.getSourceHost() + ":" + pool.getSourcePort());
            r.confSet("key", pool.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(pool.getSourceDir());
            Rbd rbd = new Rbd(io);
            RbdImage image = rbd.open(uuid);
            s_logger.debug("Fetching list of snapshots of RBD image " + pool.getSourceDir() + "/" + uuid);
            List<RbdSnapInfo> snaps = image.snapList();
            try {
                for (RbdSnapInfo snap : snaps) {
                    if (image.snapIsProtected(snap.name)) {
                        s_logger.debug("Unprotecting snapshot " + pool.getSourceDir() + "/" + uuid + "@" + snap.name);
                        image.snapUnprotect(snap.name);
                    } else {
                        s_logger.debug("Snapshot " + pool.getSourceDir() + "/" + uuid + "@" + snap.name + " is not protected.");
                    }
                    s_logger.debug("Removing snapshot " + pool.getSourceDir() + "/" + uuid + "@" + snap.name);
                    image.snapRemove(snap.name);
                }
                s_logger.info("Succesfully unprotected and removed any remaining snapshots (" + snaps.size() + ") of " + pool.getSourceDir() + "/" + uuid + " Continuing to remove the RBD image");
            } catch (RbdException e) {
                s_logger.error("Failed to remove snapshot with exception: " + e.toString() + ", RBD error: " + ErrorCode.getErrorMessage(e.getReturnValue()));
                throw new CloudRuntimeException(e.toString() + " - " + ErrorCode.getErrorMessage(e.getReturnValue()));
            } finally {
                s_logger.debug("Closing image and destroying context");
                rbd.close(image);
                r.ioCtxDestroy(io);
            }
        } catch (RadosException e) {
            s_logger.error("Failed to remove snapshot with exception: " + e.toString() + ", RBD error: " + ErrorCode.getErrorMessage(e.getReturnValue()));
            throw new CloudRuntimeException(e.toString() + " - " + ErrorCode.getErrorMessage(e.getReturnValue()));
        } catch (RbdException e) {
            s_logger.error("Failed to remove snapshot with exception: " + e.toString() + ", RBD error: " + ErrorCode.getErrorMessage(e.getReturnValue()));
            throw new CloudRuntimeException(e.toString() + " - " + ErrorCode.getErrorMessage(e.getReturnValue()));
        }
    }
    LibvirtStoragePool libvirtPool = (LibvirtStoragePool) pool;
    try {
        StorageVol vol = getVolume(libvirtPool.getPool(), uuid);
        s_logger.debug("Instructing libvirt to remove volume " + uuid + " from pool " + pool.getUuid());
        if (Storage.ImageFormat.DIR.equals(format)) {
            deleteDirVol(libvirtPool, vol);
        } else {
            deleteVol(libvirtPool, vol);
        }
        vol.free();
        return true;
    } catch (LibvirtException e) {
        throw new CloudRuntimeException(e.toString());
    }
}