Exemplo n.º 1
0
def _prepare_boot_iso(task, root_uuid):
    """Prepare a boot ISO to boot the node.

    :param task: a TaskManager instance containing the node to act on.
    :param root_uuid: the uuid of the root partition.
    :raises: MissingParameterValue, if any of the required parameters are
        missing.
    :raises: InvalidParameterValue, if any of the parameters have invalid
        value.
    :raises: ImageCreationFailed, if creating boot ISO
       for BIOS boot_mode failed.
    """
    deploy_info = _parse_deploy_info(task.node)
    driver_internal_info = task.node.driver_internal_info

    # fetch boot iso
    if deploy_info.get('irmc_boot_iso'):
        boot_iso_href = deploy_info['irmc_boot_iso']
        if _is_image_href_ordinary_file_name(boot_iso_href):
            driver_internal_info['irmc_boot_iso'] = boot_iso_href
        else:
            boot_iso_filename = _get_iso_name(task.node, label='boot')
            boot_iso_fullpathname = os.path.join(
                CONF.irmc.remote_image_share_root, boot_iso_filename)
            images.fetch(task.context, boot_iso_href, boot_iso_fullpathname)

            driver_internal_info['irmc_boot_iso'] = boot_iso_filename

    # create boot iso
    else:
        image_href = deploy_info['image_source']
        image_props = ['kernel_id', 'ramdisk_id']
        image_properties = images.get_image_properties(
            task.context, image_href, image_props)
        kernel_href = (task.node.instance_info.get('kernel')
                       or image_properties['kernel_id'])
        ramdisk_href = (task.node.instance_info.get('ramdisk')
                        or image_properties['ramdisk_id'])

        deploy_iso_href = deploy_info['irmc_deploy_iso']
        boot_mode = boot_mode_utils.get_boot_mode(task.node)
        kernel_params = CONF.pxe.pxe_append_params

        boot_iso_filename = _get_iso_name(task.node, label='boot')
        boot_iso_fullpathname = os.path.join(
            CONF.irmc.remote_image_share_root, boot_iso_filename)

        images.create_boot_iso(task.context, boot_iso_fullpathname,
                               kernel_href, ramdisk_href,
                               deploy_iso_href=deploy_iso_href,
                               root_uuid=root_uuid,
                               kernel_params=kernel_params,
                               boot_mode=boot_mode)

        driver_internal_info['irmc_boot_iso'] = boot_iso_filename

    # save driver_internal_info['irmc_boot_iso']
    task.node.driver_internal_info = driver_internal_info
    task.node.save()
Exemplo n.º 2
0
def _prepare_boot_iso(task, root_uuid):
    """Prepare a boot ISO to boot the node.

    :param task: a TaskManager instance containing the node to act on.
    :param root_uuid: the uuid of the root partition.
    :raises: MissingParameterValue, if any of the required parameters are
        missing.
    :raises: InvalidParameterValue, if any of the parameters have invalid
        value.
    :raises: ImageCreationFailed, if creating boot ISO
       for BIOS boot_mode failed.
    """
    deploy_info = _parse_deploy_info(task.node)
    driver_internal_info = task.node.driver_internal_info

    # fetch boot iso
    if deploy_info.get('irmc_boot_iso'):
        boot_iso_href = deploy_info['irmc_boot_iso']
        if service_utils.is_image_href_ordinary_file_name(boot_iso_href):
            driver_internal_info['irmc_boot_iso'] = boot_iso_href
        else:
            boot_iso_filename = _get_boot_iso_name(task.node)
            boot_iso_fullpathname = os.path.join(
                CONF.irmc.remote_image_share_root, boot_iso_filename)
            images.fetch(task.context, boot_iso_href, boot_iso_fullpathname)

            driver_internal_info['irmc_boot_iso'] = boot_iso_filename

    # create boot iso
    else:
        image_href = deploy_info['image_source']
        image_props = ['kernel_id', 'ramdisk_id']
        image_properties = images.get_image_properties(
            task.context, image_href, image_props)
        kernel_href = (task.node.instance_info.get('kernel') or
                       image_properties['kernel_id'])
        ramdisk_href = (task.node.instance_info.get('ramdisk') or
                        image_properties['ramdisk_id'])

        deploy_iso_filename = _get_deploy_iso_name(task.node)
        deploy_iso = ('file://' + os.path.join(
            CONF.irmc.remote_image_share_root, deploy_iso_filename))
        boot_mode = deploy_utils.get_boot_mode_for_deploy(task.node)
        kernel_params = CONF.pxe.pxe_append_params

        boot_iso_filename = _get_boot_iso_name(task.node)
        boot_iso_fullpathname = os.path.join(
            CONF.irmc.remote_image_share_root, boot_iso_filename)

        images.create_boot_iso(task.context, boot_iso_fullpathname,
                               kernel_href, ramdisk_href,
                               deploy_iso, root_uuid,
                               kernel_params, boot_mode)

        driver_internal_info['irmc_boot_iso'] = boot_iso_filename

    # save driver_internal_info['irmc_boot_iso']
    task.node.driver_internal_info = driver_internal_info
    task.node.save()
Exemplo n.º 3
0
def prepare_boot_iso(task, d_info, root_uuid=None):
    """Prepare boot ISO image

    Build bootable ISO out of `[instance_info]/kernel`,
    `[instance_info]/ramdisk` and `[driver_info]/bootloader` if present.
    Otherwise, read `kernel_id` and `ramdisk_id` from
    `[instance_info]/image_source` Glance image metadata.

    Push produced ISO image up to Glance and return temporary Swift
    URL to the image.

    :param task: a TaskManager instance containing the node to act on.
    :param d_info: Deployment information of the node
    :param root_uuid: Root UUID
    :returns: bootable ISO HTTP URL.
    :raises: MissingParameterValue, if any of the required parameters are
        missing.
    :raises: InvalidParameterValue, if any of the parameters have invalid
        value.
    :raises: ImageCreationFailed, if creating ISO image failed.
    """
    node = task.node

    kernel_href = node.instance_info.get('kernel')
    ramdisk_href = node.instance_info.get('ramdisk')
    base_iso = node.instance_info.get('boot_iso')

    if (not kernel_href or not ramdisk_href) and not base_iso:

        image_href = d_info['image_source']

        image_properties = (images.get_image_properties(
            task.context, image_href, ['kernel_id', 'ramdisk_id']))

        if not kernel_href:
            kernel_href = image_properties.get('kernel_id')

        if not ramdisk_href:
            ramdisk_href = image_properties.get('ramdisk_id')

        if (not kernel_href or not ramdisk_href):
            raise exception.InvalidParameterValue(
                _("Unable to find kernel or ramdisk for "
                  "to generate boot ISO for %(node)s") %
                {'node': task.node.uuid})

    bootloader_str = 'bootloader'
    bootloader_href = _find_param(bootloader_str, d_info)

    return _prepare_iso_image(task,
                              kernel_href,
                              ramdisk_href,
                              bootloader_href,
                              root_uuid=root_uuid,
                              base_iso=base_iso)
Exemplo n.º 4
0
    def test_get_glance_image_properties_default_all(self, image_service_mock):

        prop_dict = {'properties': {'p1': 'v1', 'p2': 'v2'}}

        image_service_obj_mock = image_service_mock.return_value
        image_service_obj_mock.show.return_value = prop_dict

        ret_val = images.get_image_properties('con', 'uuid')
        image_service_mock.assert_called_once_with('uuid', context='con')
        image_service_obj_mock.show.assert_called_once_with('uuid')
        self.assertEqual({'p1': 'v1', 'p2': 'v2'}, ret_val)
Exemplo n.º 5
0
    def test_get_glance_image_properties_with_prop_subset(self, image_service_mock):

        prop_dict = {"properties": {"p1": "v1", "p2": "v2", "p3": "v3"}}

        image_service_obj_mock = image_service_mock.return_value
        image_service_obj_mock.show.return_value = prop_dict

        ret_val = images.get_image_properties("con", "uuid", ["p1", "p3"])
        image_service_mock.assert_called_once_with("uuid", context="con")
        image_service_obj_mock.show.assert_called_once_with("uuid")
        self.assertEqual({"p1": "v1", "p3": "v3"}, ret_val)
Exemplo n.º 6
0
    def test_get_glance_image_properties_default_all(
            self, image_service_mock):

        prop_dict = {'properties': {'p1': 'v1',
                                    'p2': 'v2'}}

        image_service_obj_mock = image_service_mock.return_value
        image_service_obj_mock.show.return_value = prop_dict

        ret_val = images.get_image_properties('con', 'uuid')
        image_service_mock.assert_called_once_with('uuid', context='con')
        image_service_obj_mock.show.assert_called_once_with('uuid')
        self.assertEqual({'p1': 'v1',
                          'p2': 'v2'}, ret_val)
Exemplo n.º 7
0
def _get_boot_iso(task, root_uuid):
    """This method returns a boot ISO to boot the node.

    It chooses one of the three options in the order as below:
    1. Does nothing if 'ilo_boot_iso' is present in node's instance_info and
       'boot_iso_created_in_web_server' is not set in 'driver_internal_info'.
    2. Image deployed has a meta-property 'boot_iso' in Glance. This should
       refer to the UUID of the boot_iso which exists in Glance.
    3. Generates a boot ISO on the fly using kernel and ramdisk mentioned in
       the image deployed. It uploads the generated boot ISO to Swift.

    :param task: a TaskManager instance containing the node to act on.
    :param root_uuid: the uuid of the root partition.
    :returns: boot ISO URL. Should be either of below:
        * A Swift object - It should be of format 'swift:<object-name>'. It is
          assumed that the image object is present in
          CONF.ilo.swift_ilo_container;
        * A Glance image - It should be format 'glance://<glance-image-uuid>'
          or just <glance-image-uuid>;
        * An HTTP URL.
        On error finding the boot iso, it returns None.
    :raises: MissingParameterValue, if any of the required parameters are
        missing in the node's driver_info or instance_info.
    :raises: InvalidParameterValue, if any of the parameters have invalid
        value in the node's driver_info or instance_info.
    :raises: SwiftOperationError, if operation with Swift fails.
    :raises: ImageCreationFailed, if creation of boot ISO failed.
    :raises: exception.ImageRefValidationFailed if ilo_boot_iso is not
        HTTP(S) URL.
    """
    LOG.debug("Trying to get a boot ISO to boot the baremetal node")

    # Option 1 - Check if user has provided ilo_boot_iso in node's
    # instance_info
    driver_internal_info = task.node.driver_internal_info
    boot_iso_created_in_web_server = (
        driver_internal_info.get('boot_iso_created_in_web_server'))

    if (task.node.instance_info.get('ilo_boot_iso')
            and not boot_iso_created_in_web_server):
        LOG.debug("Using ilo_boot_iso provided in node's instance_info")
        boot_iso = task.node.instance_info['ilo_boot_iso']
        if not service_utils.is_glance_image(boot_iso):
            try:
                image_service.HttpImageService().validate_href(boot_iso)
            except exception.ImageRefValidationFailed:
                with excutils.save_and_reraise_exception():
                    LOG.error("Virtual media deploy accepts only Glance "
                              "images or HTTP(S) URLs as "
                              "instance_info['ilo_boot_iso']. Either %s "
                              "is not a valid HTTP(S) URL or is "
                              "not reachable.", boot_iso)

        return task.node.instance_info['ilo_boot_iso']

    # Option 2 - Check if user has provided a boot_iso in Glance. If boot_iso
    # is a supported non-glance href execution will proceed to option 3.
    deploy_info = _parse_deploy_info(task.node)

    image_href = deploy_info['image_source']
    image_properties = (
        images.get_image_properties(
            task.context, image_href, ['boot_iso', 'kernel_id', 'ramdisk_id']))

    boot_iso_uuid = image_properties.get('boot_iso')
    kernel_href = (task.node.instance_info.get('kernel')
                   or image_properties.get('kernel_id'))
    ramdisk_href = (task.node.instance_info.get('ramdisk')
                    or image_properties.get('ramdisk_id'))

    if boot_iso_uuid:
        LOG.debug("Found boot_iso %s in Glance", boot_iso_uuid)
        return boot_iso_uuid

    if not kernel_href or not ramdisk_href:
        LOG.error("Unable to find kernel or ramdisk for "
                  "image %(image)s to generate boot ISO for %(node)s",
                  {'image': image_href, 'node': task.node.uuid})
        return

    # NOTE(rameshg87): Functionality to share the boot ISOs created for
    # similar instances (instances with same deployed image) is
    # not implemented as of now. Creation/Deletion of such a shared boot ISO
    # will require synchronisation across conductor nodes for the shared boot
    # ISO.  Such a synchronisation mechanism doesn't exist in ironic as of now.

    # Option 3 - Create boot_iso from kernel/ramdisk, upload to Swift
    # or web server and provide its name.
    deploy_iso_uuid = deploy_info['ilo_deploy_iso']
    boot_mode = boot_mode_utils.get_boot_mode_for_deploy(task.node)
    boot_iso_object_name = _get_boot_iso_object_name(task.node)
    kernel_params = ""
    if deploy_utils.get_boot_option(task.node) == "ramdisk":
        i_info = task.node.instance_info
        kernel_params = "root=/dev/ram0 text "
        kernel_params += i_info.get("ramdisk_kernel_arguments", "")
    else:
        kernel_params = CONF.pxe.pxe_append_params
    with tempfile.NamedTemporaryFile(dir=CONF.tempdir) as fileobj:
        boot_iso_tmp_file = fileobj.name
        images.create_boot_iso(task.context, boot_iso_tmp_file,
                               kernel_href, ramdisk_href,
                               deploy_iso_uuid, root_uuid,
                               kernel_params, boot_mode)

        if CONF.ilo.use_web_server_for_images:
            boot_iso_url = (
                ilo_common.copy_image_to_web_server(boot_iso_tmp_file,
                                                    boot_iso_object_name))
            driver_internal_info = task.node.driver_internal_info
            driver_internal_info['boot_iso_created_in_web_server'] = True
            task.node.driver_internal_info = driver_internal_info
            task.node.save()
            LOG.debug("Created boot_iso %(boot_iso)s for node %(node)s",
                      {'boot_iso': boot_iso_url, 'node': task.node.uuid})
            return boot_iso_url
        else:
            container = CONF.ilo.swift_ilo_container
            swift_api = swift.SwiftAPI()
            swift_api.create_object(container, boot_iso_object_name,
                                    boot_iso_tmp_file)

            LOG.debug("Created boot_iso %s in Swift", boot_iso_object_name)
            return 'swift:%s' % boot_iso_object_name
Exemplo n.º 8
0
def _get_boot_iso(task, root_uuid):
    """This method returns a boot ISO to boot the node.

    It chooses one of the three options in the order as below:
    1. Does nothing if 'ilo_boot_iso' is present in node's instance_info and
       'boot_iso_created_in_web_server' is not set in 'driver_internal_info'.
    2. Image deployed has a meta-property 'boot_iso' in Glance. This should
       refer to the UUID of the boot_iso which exists in Glance.
    3. Generates a boot ISO on the fly using kernel and ramdisk mentioned in
       the image deployed. It uploads the generated boot ISO to Swift.

    :param task: a TaskManager instance containing the node to act on.
    :param root_uuid: the uuid of the root partition.
    :returns: boot ISO URL. Should be either of below:
        * A Swift object - It should be of format 'swift:<object-name>'. It is
          assumed that the image object is present in
          CONF.ilo.swift_ilo_container;
        * A Glance image - It should be format 'glance://<glance-image-uuid>'
          or just <glance-image-uuid>;
        * An HTTP URL.
        On error finding the boot iso, it returns None.
    :raises: MissingParameterValue, if any of the required parameters are
        missing in the node's driver_info or instance_info.
    :raises: InvalidParameterValue, if any of the parameters have invalid
        value in the node's driver_info or instance_info.
    :raises: SwiftOperationError, if operation with Swift fails.
    :raises: ImageCreationFailed, if creation of boot ISO failed.
    :raises: exception.ImageRefValidationFailed if ilo_boot_iso is not
        HTTP(S) URL.
    """
    LOG.debug("Trying to get a boot ISO to boot the baremetal node")

    # Option 1 - Check if user has provided ilo_boot_iso in node's
    # instance_info
    driver_internal_info = task.node.driver_internal_info
    boot_iso_created_in_web_server = (
        driver_internal_info.get('boot_iso_created_in_web_server'))

    if (task.node.instance_info.get('ilo_boot_iso')
            and not boot_iso_created_in_web_server):
        LOG.debug("Using ilo_boot_iso provided in node's instance_info")
        boot_iso = task.node.instance_info['ilo_boot_iso']
        if not service_utils.is_glance_image(boot_iso):
            try:
                image_service.HttpImageService().validate_href(boot_iso)
            except exception.ImageRefValidationFailed:
                with excutils.save_and_reraise_exception():
                    LOG.error(
                        "Virtual media deploy accepts only Glance "
                        "images or HTTP(S) URLs as "
                        "instance_info['ilo_boot_iso']. Either %s "
                        "is not a valid HTTP(S) URL or is "
                        "not reachable.", boot_iso)

        return task.node.instance_info['ilo_boot_iso']

    # Option 2 - Check if user has provided a boot_iso in Glance. If boot_iso
    # is a supported non-glance href execution will proceed to option 3.
    deploy_info = _parse_deploy_info(task.node)

    image_href = deploy_info['image_source']
    image_properties = (images.get_image_properties(
        task.context, image_href, ['boot_iso', 'kernel_id', 'ramdisk_id']))

    boot_iso_uuid = image_properties.get('boot_iso')
    kernel_href = (task.node.instance_info.get('kernel')
                   or image_properties.get('kernel_id'))
    ramdisk_href = (task.node.instance_info.get('ramdisk')
                    or image_properties.get('ramdisk_id'))

    if boot_iso_uuid:
        LOG.debug("Found boot_iso %s in Glance", boot_iso_uuid)
        return boot_iso_uuid

    # NOTE(rameshg87): Functionality to share the boot ISOs created for
    # similar instances (instances with same deployed image) is
    # not implemented as of now. Creation/Deletion of such a shared boot ISO
    # will require synchronisation across conductor nodes for the shared boot
    # ISO.  Such a synchronisation mechanism doesn't exist in ironic as of now.

    # Option 3 - Create boot_iso from kernel/ramdisk, upload to Swift
    # or web server and provide its name.
    deploy_iso_uuid = deploy_info['ilo_deploy_iso']

    use_web_server = CONF.ilo.use_web_server_for_images
    container = CONF.ilo.swift_ilo_container

    return virtual_media_base.prepare_iso_image(
        task,
        kernel_href,
        ramdisk_href,
        deploy_iso_href=deploy_iso_uuid,
        root_uuid=root_uuid,
        use_web_server=use_web_server,
        container=container)
Exemplo n.º 9
0
def _get_boot_iso(task, root_uuid):
    """This method returns a boot ISO to boot the node.

    It chooses one of the three options in the order as below:
    1. Does nothing if 'ilo_boot_iso' is present in node's instance_info and
       'boot_iso_created_in_web_server' is not set in 'driver_internal_info'.
    2. Image deployed has a meta-property 'boot_iso' in Glance. This should
       refer to the UUID of the boot_iso which exists in Glance.
    3. Generates a boot ISO on the fly using kernel and ramdisk mentioned in
       the image deployed. It uploads the generated boot ISO to Swift.

    :param task: a TaskManager instance containing the node to act on.
    :param root_uuid: the uuid of the root partition.
    :returns: boot ISO URL. Should be either of below:
        * A Swift object - It should be of format 'swift:<object-name>'. It is
          assumed that the image object is present in
          CONF.ilo.swift_ilo_container;
        * A Glance image - It should be format 'glance://<glance-image-uuid>'
          or just <glance-image-uuid>;
        * An HTTP URL.
        On error finding the boot iso, it returns None.
    :raises: MissingParameterValue, if any of the required parameters are
        missing in the node's driver_info or instance_info.
    :raises: InvalidParameterValue, if any of the parameters have invalid
        value in the node's driver_info or instance_info.
    :raises: SwiftOperationError, if operation with Swift fails.
    :raises: ImageCreationFailed, if creation of boot ISO failed.
    :raises: exception.ImageRefValidationFailed if ilo_boot_iso is not
        HTTP(S) URL.
    """
    LOG.debug("Trying to get a boot ISO to boot the baremetal node")

    # Option 1 - Check if user has provided ilo_boot_iso in node's
    # instance_info
    driver_internal_info = task.node.driver_internal_info
    boot_iso_created_in_web_server = (
        driver_internal_info.get('boot_iso_created_in_web_server'))

    if (task.node.instance_info.get('ilo_boot_iso')
            and not boot_iso_created_in_web_server):
        LOG.debug("Using ilo_boot_iso provided in node's instance_info")
        boot_iso = task.node.instance_info['ilo_boot_iso']
        if not service_utils.is_glance_image(boot_iso):
            try:
                image_service.HttpImageService().validate_href(boot_iso)
            except exception.ImageRefValidationFailed:
                with excutils.save_and_reraise_exception():
                    LOG.error("Virtual media deploy accepts only Glance "
                              "images or HTTP(S) URLs as "
                              "instance_info['ilo_boot_iso']. Either %s "
                              "is not a valid HTTP(S) URL or is "
                              "not reachable.", boot_iso)

        return task.node.instance_info['ilo_boot_iso']

    # Option 2 - Check if user has provided a boot_iso in Glance. If boot_iso
    # is a supported non-glance href execution will proceed to option 3.
    deploy_info = _parse_deploy_info(task.node)

    image_href = deploy_info['image_source']
    image_properties = (
        images.get_image_properties(
            task.context, image_href, ['boot_iso', 'kernel_id', 'ramdisk_id']))

    boot_iso_uuid = image_properties.get('boot_iso')
    kernel_href = (task.node.instance_info.get('kernel')
                   or image_properties.get('kernel_id'))
    ramdisk_href = (task.node.instance_info.get('ramdisk')
                    or image_properties.get('ramdisk_id'))

    if boot_iso_uuid:
        LOG.debug("Found boot_iso %s in Glance", boot_iso_uuid)
        return boot_iso_uuid

    if not kernel_href or not ramdisk_href:
        LOG.error("Unable to find kernel or ramdisk for "
                  "image %(image)s to generate boot ISO for %(node)s",
                  {'image': image_href, 'node': task.node.uuid})
        return

    # NOTE(rameshg87): Functionality to share the boot ISOs created for
    # similar instances (instances with same deployed image) is
    # not implemented as of now. Creation/Deletion of such a shared boot ISO
    # will require synchronisation across conductor nodes for the shared boot
    # ISO.  Such a synchronisation mechanism doesn't exist in ironic as of now.

    # Option 3 - Create boot_iso from kernel/ramdisk, upload to Swift
    # or web server and provide its name.
    deploy_iso_uuid = deploy_info['ilo_deploy_iso']
    boot_mode = boot_mode_utils.get_boot_mode(task.node)
    boot_iso_object_name = _get_boot_iso_object_name(task.node)
    kernel_params = ""
    if deploy_utils.get_boot_option(task.node) == "ramdisk":
        i_info = task.node.instance_info
        kernel_params = "root=/dev/ram0 text "
        kernel_params += i_info.get("ramdisk_kernel_arguments", "")
    else:
        kernel_params = CONF.pxe.pxe_append_params
    with tempfile.NamedTemporaryFile(dir=CONF.tempdir) as fileobj:
        boot_iso_tmp_file = fileobj.name
        images.create_boot_iso(task.context, boot_iso_tmp_file,
                               kernel_href, ramdisk_href,
                               deploy_iso_href=deploy_iso_uuid,
                               root_uuid=root_uuid,
                               kernel_params=kernel_params,
                               boot_mode=boot_mode)

        if CONF.ilo.use_web_server_for_images:
            boot_iso_url = (
                ilo_common.copy_image_to_web_server(boot_iso_tmp_file,
                                                    boot_iso_object_name))
            driver_internal_info = task.node.driver_internal_info
            driver_internal_info['boot_iso_created_in_web_server'] = True
            task.node.driver_internal_info = driver_internal_info
            task.node.save()
            LOG.debug("Created boot_iso %(boot_iso)s for node %(node)s",
                      {'boot_iso': boot_iso_url, 'node': task.node.uuid})
            return boot_iso_url
        else:
            container = CONF.ilo.swift_ilo_container
            swift_api = swift.SwiftAPI()
            swift_api.create_object(container, boot_iso_object_name,
                                    boot_iso_tmp_file)

            LOG.debug("Created boot_iso %s in Swift", boot_iso_object_name)
            return 'swift:%s' % boot_iso_object_name
Exemplo n.º 10
0
    def _prepare_boot_iso(cls, task, root_uuid=None):
        """Prepare boot ISO image

        Build bootable ISO out of `[instance_info]/kernel`,
        `[instance_info]/ramdisk` and `[driver_info]/bootloader` if present.
        Otherwise, read `kernel_id` and `ramdisk_id` from
        `[instance_info]/image_source` Glance image metadata.

        Push produced ISO image up to Glance and return temporary Swift
        URL to the image.

        :param task: a TaskManager instance containing the node to act on.
        :returns: bootable ISO HTTP URL.
        :raises: MissingParameterValue, if any of the required parameters are
            missing.
        :raises: InvalidParameterValue, if any of the parameters have invalid
            value.
        :raises: ImageCreationFailed, if creating ISO image failed.
        """
        node = task.node

        d_info = cls._parse_deploy_info(node)

        kernel_href = node.instance_info.get('kernel')
        ramdisk_href = node.instance_info.get('ramdisk')

        if not kernel_href or not ramdisk_href:

            image_href = d_info['image_source']

            image_properties = (images.get_image_properties(
                task.context, image_href, ['kernel_id', 'ramdisk_id']))

            if not kernel_href:
                kernel_href = image_properties.get('kernel_id')

            if not ramdisk_href:
                ramdisk_href = image_properties.get('ramdisk_id')

        if not kernel_href or not ramdisk_href:
            raise exception.InvalidParameterValue(
                _("Unable to find kernel or ramdisk for "
                  "to generate boot ISO for %(node)s") %
                {'node': task.node.uuid})

        bootloader_href = d_info.get('bootloader')

        if CONF.redfish.use_swift:
            use_web_server = False
            container = CONF.redfish.swift_container
            timeout = CONF.redfish.swift_object_expiry_timeout
        else:
            use_web_server = True
            container = None
            timeout = None

        return virtual_media_base.prepare_iso_image(
            task,
            kernel_href,
            ramdisk_href,
            bootloader_href=bootloader_href,
            root_uuid=root_uuid,
            timeout=timeout,
            use_web_server=use_web_server,
            container=container)