Python virtinst.VirtualDisk类代码示例

    def testManyDisks2(self):
        i = utils.make_pxe_installer()
        g = utils.get_basic_fullyvirt_guest(installer=i)

        g.disks.append(utils.get_filedisk())
        g.disks.append(utils.get_blkdisk())
        g.disks.append(VirtualDisk(conn=g.conn, path="/dev/loop0",
                                   device=VirtualDisk.DEVICE_CDROM,
                                   driverType="raw"))
        g.disks.append(VirtualDisk(conn=g.conn, path="/dev/loop0",
                                   device=VirtualDisk.DEVICE_DISK,
                                   driverName="qemu", format="qcow2"))
        g.disks.append(VirtualDisk(conn=g.conn, path=None,
                                   device=VirtualDisk.DEVICE_CDROM,
                                   bus="scsi"))
        g.disks.append(VirtualDisk(conn=g.conn, path=None,
                                   device=VirtualDisk.DEVICE_FLOPPY))
        g.disks.append(VirtualDisk(conn=g.conn, path="/dev/loop0",
                                   device=VirtualDisk.DEVICE_FLOPPY,
                                   driverName="phy", driverCache="none"))
        disk = VirtualDisk(conn=g.conn, path="/dev/loop0",
                           bus="virtio", driverName="qemu",
                           driverType="qcow2", driverCache="none")
        disk.driver_io = "threads"
        g.disks.append(disk)

        self._compare(g, "boot-many-disks2", False)

def get_floppy(path=None):
    if not path:
        path = "/dev/default-pool/testvol1.img"
    d = VirtualDisk(_conn)
    d.path = path
    d.device = d.DEVICE_FLOPPY
    d.validate()
    return d

    def testManyVirtio(self):
        d = VirtualDisk(conn=utils.get_conn(), bus="virtio",
                        path="/default-pool/testvol1.img")

        targetlist = []
        for ignore in range(0, (26 * 2) + 1):
            d.target = None
            d.generate_target(targetlist)
            targetlist.append(d.target)

        self.assertEquals("vdaa", targetlist[26])
        self.assertEquals("vdba", targetlist[26 * 2])

    def _make_disks(self):
        for drive in self.boot_caps.drives:
            path = self.image.abspath(drive.disk.file)
            size = None
            if drive.disk.size is not None:
                size = float(drive.disk.size) / 1024

            # FIXME: This is awkward; the image should be able to express
            # whether the disk is expected to be there or not independently
            # of its classification, especially for user disks
            # FIXME: We ignore the target for the mapping in m.target
            if (drive.disk.use == Disk.USE_SYSTEM and
                not os.path.exists(path)):
                raise RuntimeError(_("System disk %s does not exist") % path)

            device = VirtualDisk.DEVICE_DISK
            if drive.disk.format == Disk.FORMAT_ISO:
                device = VirtualDisk.DEVICE_CDROM

            disk = VirtualDisk(self.conn)
            disk.path = path
            disk.device = device
            disk.target = drive.target

            disk.set_create_storage(size=size, fmt=drive.disk.format)
            disk.validate()
            self.install_devices.append(disk)

def check_path_search_for_qemu(parent, conn, path):
    set_error_parent(parent)

    if conn.is_remote() or not conn.is_qemu_system():
        return

    user = util.running_config.default_qemu_user

    skip_paths = util.running_config.get_perms_fix_ignore()
    broken_paths = VirtualDisk.check_path_search_for_user(conn.vmm, path, user)
    for p in broken_paths:
        if p in skip_paths:
            broken_paths.remove(p)

    if not broken_paths:
        return

    logging.debug("No search access for dirs: %s", broken_paths)
    resp, chkres = err_dial.warn_chkbox(
                    _("The emulator may not have search permissions "
                      "for the path '%s'.") % path,
                    _("Do you want to correct this now?"),
                    _("Don't ask about these directories again."),
                    buttons=gtk.BUTTONS_YES_NO)

    if chkres:
        util.running_config.add_perms_fix_ignore(broken_paths)
    if not resp:
        return

    logging.debug("Attempting to correct permission issues.")
    errors = VirtualDisk.fix_path_search_for_user(conn.vmm, path, user)
    if not errors:
        return

    errmsg = _("Errors were encountered changing permissions for the "
               "following directories:")
    details = ""
    for path, error in errors.items():
        if path not in broken_paths:
            continue
        details += "%s : %s\n" % (path, error)

    logging.debug("Permission errors:\n%s", details)

    ignore, chkres = err_dial.err_chkbox(errmsg, details,
                         _("Don't ask about these directories again."))

    if chkres:
        util.running_config.add_perms_fix_ignore(errors.keys())

    def testCreateDisk(self):
        """
        Doesn't really belong here, but what the hell :)
        """
        path = "/tmp/__virtinst_create_test__.img"
        sizegigs = .001
        sizebytes = long(sizegigs * 1024L * 1024L * 1024L)

        for sparse in [True, False]:
            disk = VirtualDisk(conn=utils.get_conn(), path=path, size=sizegigs,
                               sparse=sparse)
            disk.setup()

            actualsize = long(os.path.getsize(path))
            os.unlink(path)
            self.assertEquals(sizebytes, actualsize)

def populate_storage_volumes(list_widget, pool, sensitive_cb):
    vols = pool and pool.get_volumes() or {}
    model = list_widget.get_model()
    model.clear()

    for key in vols.keys():
        vol = vols[key]

        try:
            path = vol.get_target_path()
            name = vol.get_pretty_name(pool.get_type())
            cap = vol.get_pretty_capacity()
            fmt = vol.get_format() or ""
        except:
            logging.debug("Error getting volume info for '%s', "
                          "hiding it", key, exc_info=True)
            continue

        namestr = None
        try:
            if path:
                names = VirtualDisk.path_in_use_by(vol.conn.get_backend(),
                                                   path)
                namestr = ", ".join(names)
                if not namestr:
                    namestr = None
        except:
            logging.exception("Failed to determine if storage volume in "
                              "use.")

        row = [key, name, cap, fmt, namestr]
        if sensitive_cb:
            row.append(sensitive_cb(fmt))
        model.append(row)

    def populate_storage_volumes(self):
        pool = self.current_pool()
        model = self.widget("vol-list").get_model()
        model.clear()
        vols = pool.get_volumes()
        for key in vols.keys():
            vol = vols[key]

            try:
                path = vol.get_target_path()
                name = vol.get_name()
                cap = vol.get_pretty_capacity()
                fmt = vol.get_format() or ""
            except:
                logging.debug("Error getting volume info for '%s', "
                              "hiding it", key, exc_info=True)
                continue

            namestr = None
            try:
                if path:
                    names = VirtualDisk.path_in_use_by(self.conn.vmm, path)
                    namestr = ", ".join(names)
                    if not namestr:
                        namestr = None
            except:
                logging.exception("Failed to determine if storage volume in "
                                  "use.")

            model.append([key, name, cap, fmt, namestr])

def disk_prompt(prompt_txt, arg_dict, warn_overwrite=False, prompt_size=True,
                path_to_clone=None):

    retry_path = True
    conn = arg_dict.get("conn")
    passed_path = arg_dict.get("path")
    size = arg_dict.get("size")

    no_path_needed = (bool(arg_dict.get("volInstall")) or
                      bool(arg_dict.get("volName")))

    while 1:
        if not retry_path:
            passed_path = None
            size = None
        retry_path = False

        msg = None
        patherr = _("A disk path must be specified.")
        if path_to_clone:
            patherr = (_("A disk path must be specified to clone '%s'.") %
                       path_to_clone)

        if not prompt_txt:
            msg = _("What would you like to use as the disk (file path)?")
            if not size is None:
                msg = _("Please enter the path to the file you would like to "
                        "use for storage. It will have size %sGB.") %(size,)

        if not no_path_needed:
            path = prompt_for_input(patherr, prompt_txt or msg, passed_path)
        else:
            path = None
        arg_dict["path"] = path

        sizeerr = _("A size must be specified for non-existent disks.")
        if path and not size and prompt_size:
            size_prompt = _("How large would you like the disk (%s) to "
                            "be (in gigabytes)?") % path

            try:
                if not VirtualDisk.path_exists(conn, path):
                    size = prompt_loop(size_prompt, sizeerr, size, None, None,
                                       func=float)
            except Exception, e:
                # Path is probably bogus, raise the error
                logging.error(str(e))
                continue
        arg_dict["size"] = size

        # Build disk object for validation
        try:
            dev = VirtualDisk(**arg_dict)
        except ValueError, e:
            if is_prompt():
                logging.error(e)
                continue
            else:
                fail(_("Error with storage parameters: %s" % str(e)))

    def _populate_vols(self):
        list_widget = self.widget("vol-list")
        pool = self._current_pool()
        vols = pool and pool.get_volumes() or []
        model = list_widget.get_model()
        list_widget.get_selection().unselect_all()
        model.clear()

        vadj = self.widget("vol-scroll").get_vadjustment()
        vscroll_percent = vadj.get_value() / max(vadj.get_upper(), 1)

        for vol in vols:
            key = vol.get_connkey()

            try:
                path = vol.get_target_path()
                name = vol.get_pretty_name(pool.get_type())
                cap = str(vol.get_capacity())
                sizestr = vol.get_pretty_capacity()
                fmt = vol.get_format() or ""
            except:
                logging.debug("Error getting volume info for '%s', "
                              "hiding it", key, exc_info=True)
                continue

            namestr = None
            try:
                if path:
                    names = VirtualDisk.path_in_use_by(vol.conn.get_backend(),
                                                       path)
                    namestr = ", ".join(names)
                    if not namestr:
                        namestr = None
            except:
                logging.exception("Failed to determine if storage volume in "
                                  "use.")

            sensitive = True
            if self._vol_sensitive_cb:
                sensitive = self._vol_sensitive_cb(fmt)

            row = [None] * VOL_NUM_COLUMNS
            row[VOL_COLUMN_KEY] = key
            row[VOL_COLUMN_NAME] = name
            row[VOL_COLUMN_SIZESTR] = sizestr
            row[VOL_COLUMN_CAPACITY] = cap
            row[VOL_COLUMN_FORMAT] = fmt
            row[VOL_COLUMN_INUSEBY] = namestr
            row[VOL_COLUMN_SENSITIVE] = sensitive
            model.append(row)

        def _reset_vscroll_position():
            vadj.set_value(vadj.get_upper() * vscroll_percent)
        self.idle_add(_reset_vscroll_position)

    def testDiskNumbers(self):
        self.assertEquals("a", VirtualDisk.num_to_target(1))
        self.assertEquals("b", VirtualDisk.num_to_target(2))
        self.assertEquals("z", VirtualDisk.num_to_target(26))
        self.assertEquals("aa", VirtualDisk.num_to_target(27))
        self.assertEquals("ab", VirtualDisk.num_to_target(28))
        self.assertEquals("az", VirtualDisk.num_to_target(52))
        self.assertEquals("ba", VirtualDisk.num_to_target(53))
        self.assertEquals("zz", VirtualDisk.num_to_target(27 * 26))
        self.assertEquals("aaa", VirtualDisk.num_to_target(27 * 26 + 1))

        disk = virtinst.VirtualDisk(utils.get_conn())
        disk.bus = "ide"

        self.assertEquals("hda", disk.generate_target([]))
        self.assertEquals("hdb", disk.generate_target(["hda"]))
        self.assertEquals("hdc", disk.generate_target(["hdb", "sda"]))
        self.assertEquals("hdb", disk.generate_target(["hda", "hdd"]))

def get_filedisk(path=None, fake=True):
    if not path:
        path = "/dev/default-pool/new-test-suite.img"
    d = VirtualDisk(_conn)
    d.path = path
    size = None
    if not fake:
        size = .000001
    d.set_create_storage(fake=fake, size=size)
    d.validate()
    return d

    def populate_storage_volumes(self):
        model = self.widget("vol-list").get_model()
        model.clear()
        dironly = self.browse_reason == self.config.CONFIG_DIR_FS

        pool = self.current_pool()
        if not pool:
            return

        vols = pool.get_volumes()
        for key in vols.keys():
            vol = vols[key]
            sensitive = True
            try:
                path = vol.get_target_path()
                fmt = vol.get_format() or ""
            except Exception:
                logging.exception("Failed to determine volume parameters, "
                                  "skipping volume %s", key)
                continue

            namestr = None

            try:
                if path:
                    names = VirtualDisk.path_in_use_by(self.conn.get_backend(),
                                                       path)
                    namestr = ", ".join(names)
                    if not namestr:
                        namestr = None
            except:
                logging.exception("Failed to determine if storage volume in "
                                  "use.")

            if dironly and fmt != 'dir':
                sensitive = False
            elif not self.rhel6_defaults:
                if fmt == "vmdk":
                    sensitive = False

            model.append([key, vol.get_name(), vol.get_pretty_capacity(),
                          fmt, namestr, sensitive])

def _make_guest(installer=None, conn=None):
    if conn is None:
        conn = _default_conn

    g = virtinst.Guest(conn)
    g.type = "kvm"
    g.name = "TestGuest"
    g.memory = int(200 * 1024)
    g.maxmemory = int(400 * 1024)
    g.uuid = "12345678-1234-1234-1234-123456789012"
    gdev = virtinst.VirtualGraphics(conn)
    gdev.type = "vnc"
    gdev.keymap = "ja"
    g.add_device(gdev)
    g.features.pae = False
    g.vcpus = 5

    if not installer:
        installer = _make_installer(conn=conn)
    g.installer = installer
    g.emulator = "/usr/lib/xen/bin/qemu-dm"
    g.os.arch = "i686"
    g.os.os_type = "hvm"

    g.add_default_input_device()
    g.add_default_console_device()
    g.add_device(virtinst.VirtualAudio(g.conn))

    # Floppy disk
    path = "/dev/default-pool/testvol1.img"
    d = VirtualDisk(conn)
    d.path = path
    d.device = d.DEVICE_FLOPPY
    d.validate()
    g.add_device(d)

    # File disk
    path = "/dev/default-pool/new-test-suite.img"
    d = virtinst.VirtualDisk(conn)
    d.path = path

    if d.wants_storage_creation():
        parent_pool = d.get_parent_pool()
        vol_install = virtinst.VirtualDisk.build_vol_install(conn,
            os.path.basename(path), parent_pool, .0000001, True)
        d.set_vol_install(vol_install)

    d.validate()
    g.add_device(d)

    # Block disk
    path = "/dev/disk-pool/diskvol1"
    d = virtinst.VirtualDisk(conn)
    d.path = path
    d.validate()
    g.add_device(d)

    # Network device
    dev = virtinst.VirtualNetworkInterface(conn)
    dev.macaddr = "22:22:33:44:55:66"
    dev.type = virtinst.VirtualNetworkInterface.TYPE_VIRTUAL
    dev.source = "default"
    g.add_device(dev)

    return g

def _upload_file(conn, meter, destpool, src):
    # Build stream object
    stream = conn.newStream(0)
    def safe_send(data):
        while True:
            ret = stream.send(data)
            if ret == 0 or ret == len(data):
                break
            data = data[ret:]

    if meter is None:
        meter = urlgrabber.progress.BaseMeter()

    # Build placeholder volume
    size = os.path.getsize(src)
    basename = os.path.basename(src)
    poolpath = util.xpath(destpool.XMLDesc(0), "/pool/target/path")
    name = Storage.StorageVolume.find_free_name(basename,
                                                pool_object=destpool)
    if name != basename:
        logging.debug("Generated non-colliding volume name %s", name)

    vol_install = VirtualDisk.build_vol_install(conn, name, destpool,
                    (float(size) / 1024.0 / 1024.0 / 1024.0), True)

    disk = VirtualDisk(conn)
    disk.path = os.path.join(poolpath, name)
    disk.set_create_storage(vol_install=vol_install)
    disk.validate()

    disk.setup(meter=meter)
    vol = disk.get_vol_object()
    if not vol:
        raise RuntimeError(_("Failed to lookup scratch media volume"))

    try:
        # Register upload
        offset = 0
        length = size
        flags = 0
        stream.upload(vol, offset, length, flags)

        # Open source file
        fileobj = file(src, "r")

        # Start transfer
        total = 0
        meter.start(size=size,
                    text=_("Transferring %s") % os.path.basename(src))
        while True:
            # blocksize = (1024 ** 2)
            blocksize = 1024
            data = fileobj.read(blocksize)
            if not data:
                break

            safe_send(data)
            total += len(data)
            meter.update(total)

        # Cleanup
        stream.finish()
        meter.end(size)
    except:
        if vol:
            vol.delete(0)
        raise

    return vol