# Licensed under the Apache License, Version 2.0 (the "License"); you may # not use this file except in compliance with the License. You may obtain # a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the # License for the specific language governing permissions and limitations # under the License. import hashlib import copy import jsonpatch from openstack import _log from openstack import exceptions from openstack.image import image_service from openstack import resource from openstack import utils _logger = _log.setup_logging('openstack') class Image(resource.Resource): resources_key = 'images' base_path = '/images' service = image_service.ImageService() # capabilities allow_create = True allow_get = True allow_update = True allow_delete = True allow_list = True update_method = 'PATCH' _query_mapping = resource.QueryParameters( "name", "visibility", "member_status", "owner", "status", "size_min", "size_max", "sort_key", "sort_dir", "sort", "tag", "created_at", "updated_at") # NOTE: Do not add "self" support here. If you've used Python before, # you know that self, while not being a reserved word, has special # meaning. You can't call a class initializer with the self name # as the first argument and then additionally in kwargs, as we # do when we're constructing instances from the JSON body. # Resource.list explicitly pops off any "self" keys from bodies so # that we don't end up getting the following: # TypeError: __init__() got multiple values for argument 'self' # The image data (bytes or a file-like object) data = None # Properties #: Hash of the image data used. The Image service uses this value #: for verification. checksum = resource.Body('checksum') #: The container format refers to whether the VM image is in a file #: format that also contains metadata about the actual VM. #: Container formats include OVF and Amazon AMI. In addition, #: a VM image might not have a container format - instead, #: the image is just a blob of unstructured data. container_format = resource.Body('container_format') #: The date and time when the image was created. created_at = resource.Body('created_at') #: Valid values are: aki, ari, ami, raw, iso, vhd, vdi, qcow2, or vmdk. #: The disk format of a VM image is the format of the underlying #: disk image. Virtual appliance vendors have different formats #: for laying out the information contained in a VM disk image. disk_format = resource.Body('disk_format') #: Defines whether the image can be deleted. #: *Type: bool* is_protected = resource.Body('protected', type=bool) #: The minimum disk size in GB that is required to boot the image. min_disk = resource.Body('min_disk') #: The minimum amount of RAM in MB that is required to boot the image. min_ram = resource.Body('min_ram') #: The name of the image. name = resource.Body('name') #: The ID of the owner, or project, of the image. owner_id = resource.Body('owner') #: Properties, if any, that are associated with the image. properties = resource.Body('properties', type=dict) #: The size of the image data, in bytes. size = resource.Body('size', type=int) #: When present, Glance will attempt to store the disk image data in the #: backing store indicated by the value of the header. When not present, #: Glance will store the disk image data in the backing store that is #: marked default. Valid values are: file, s3, rbd, swift, cinder, #: gridfs, sheepdog, or vsphere. store = resource.Body('store') #: The image status. status = resource.Body('status') #: Tags, if any, that are associated with the image. tags = resource.Body('tags') #: The date and time when the image was updated. updated_at = resource.Body('updated_at') #: The virtual size of the image. virtual_size = resource.Body('virtual_size') #: The image visibility. visibility = resource.Body('visibility') #: The URL for the virtual machine image file. file = resource.Body('file') #: A list of URLs to access the image file in external store. #: This list appears if the show_multiple_locations option is set #: to true in the Image service's configuration file. locations = resource.Body('locations') #: The URL to access the image file kept in external store. It appears #: when you set the show_image_direct_url option to true in the #: Image service's configuration file. direct_url = resource.Body('direct_url') #: An image property. path = resource.Body('path') #: Value of image property used in add or replace operations expressed #: in JSON notation. For example, you must enclose strings in quotation #: marks, and you do not enclose numeric values in quotation marks. value = resource.Body('value') #: The URL to access the image file kept in external store. url = resource.Body('url') #: The location metadata. metadata = resource.Body('metadata', type=dict) # Additional Image Properties # https://docs.openstack.org/glance/latest/user/common-image-properties.html # http://docs.openstack.org/cli-reference/glance-property-keys.html #: The CPU architecture that must be supported by the hypervisor. architecture = resource.Body("architecture") #: The hypervisor type. Note that qemu is used for both QEMU and #: KVM hypervisor types. hypervisor_type = resource.Body("hypervisor-type") #: Optional property allows created servers to have a different bandwidth #: cap than that defined in the network they are attached to. instance_type_rxtx_factor = resource.Body( "instance_type_rxtx_factor", type=float) # For snapshot images, this is the UUID of the server used to #: create this image. instance_uuid = resource.Body('instance_uuid') #: Specifies whether the image needs a config drive. #: `mandatory` or `optional` (default if property is not used). needs_config_drive = resource.Body('img_config_drive') #: The ID of an image stored in the Image service that should be used #: as the kernel when booting an AMI-style image. kernel_id = resource.Body('kernel_id') #: The common name of the operating system distribution in lowercase os_distro = resource.Body('os_distro') #: The operating system version as specified by the distributor. os_version = resource.Body('os_version') #: Secure Boot is a security standard. When the instance starts, #: Secure Boot first examines software such as firmware and OS by #: their signature and only allows them to run if the signatures are valid. needs_secure_boot = resource.Body('os_secure_boot') #: The ID of image stored in the Image service that should be used as #: the ramdisk when booting an AMI-style image. ramdisk_id = resource.Body('ramdisk_id') #: The virtual machine mode. This represents the host/guest ABI #: (application binary interface) used for the virtual machine. vm_mode = resource.Body('vm_mode') #: The preferred number of sockets to expose to the guest. hw_cpu_sockets = resource.Body('hw_cpu_sockets', type=int) #: The preferred number of cores to expose to the guest. hw_cpu_cores = resource.Body('hw_cpu_cores', type=int) #: The preferred number of threads to expose to the guest. hw_cpu_threads = resource.Body('hw_cpu_threads', type=int) #: Specifies the type of disk controller to attach disk devices to. #: One of scsi, virtio, uml, xen, ide, or usb. hw_disk_bus = resource.Body('hw_disk_bus') #: Adds a random-number generator device to the image's instances. hw_rng_model = resource.Body('hw_rng_model') #: For libvirt: Enables booting an ARM system using the specified #: machine type. #: For Hyper-V: Specifies whether the Hyper-V instance will be a #: generation 1 or generation 2 VM. hw_machine_type = resource.Body('hw_machine_type') #: Enables the use of VirtIO SCSI (virtio-scsi) to provide block device #: access for compute instances; by default, instances use VirtIO Block #: (virtio-blk). hw_scsi_model = resource.Body('hw_scsi_model') #: Specifies the count of serial ports that should be provided. hw_serial_port_count = resource.Body('hw_serial_port_count', type=int) #: The video image driver used. hw_video_model = resource.Body('hw_video_model') #: Maximum RAM for the video image. hw_video_ram = resource.Body('hw_video_ram', type=int) #: Enables a virtual hardware watchdog device that carries out the #: specified action if the server hangs. hw_watchdog_action = resource.Body('hw_watchdog_action') #: The kernel command line to be used by the libvirt driver, instead #: of the default. os_command_line = resource.Body('os_command_line') #: Specifies the model of virtual network interface device to use. hw_vif_model = resource.Body('hw_vif_model') #: If true, this enables the virtio-net multiqueue feature. #: In this case, the driver sets the number of queues equal to the #: number of guest vCPUs. This makes the network performance scale #: across a number of vCPUs. is_hw_vif_multiqueue_enabled = resource.Body( 'hw_vif_multiqueue_enabled', type=bool) #: If true, enables the BIOS bootmenu. is_hw_boot_menu_enabled = resource.Body('hw_boot_menu', type=bool) #: The virtual SCSI or IDE controller used by the hypervisor. vmware_adaptertype = resource.Body('vmware_adaptertype') #: A VMware GuestID which describes the operating system installed #: in the image. vmware_ostype = resource.Body('vmware_ostype') #: If true, the root partition on the disk is automatically resized #: before the instance boots. has_auto_disk_config = resource.Body('auto_disk_config', type=bool) #: The operating system installed on the image. os_type = resource.Body('os_type') #: The operating system admin username. os_admin_user = resource.Body('os_admin_user') #: If true, QEMU guest agent will be exposed to the instance. hw_qemu_guest_agent = resource.Body('hw_qemu_guest_agent', type=bool) #: If true, require quiesce on snapshot via QEMU guest agent. os_require_quiesce = resource.Body('os_require_quiesce', type=bool) def _action(self, session, action): """Call an action on an image ID.""" url = utils.urljoin(self.base_path, self.id, 'actions', action) return session.post(url,) def deactivate(self, session): """Deactivate an image Note: Only administrative users can view image locations for deactivated images. """ self._action(session, "deactivate") def reactivate(self, session): """Reactivate an image Note: The image must exist in order to be reactivated. """ self._action(session, "reactivate") def add_tag(self, session, tag): """Add a tag to an image""" url = utils.urljoin(self.base_path, self.id, 'tags', tag) session.put(url,) def remove_tag(self, session, tag): """Remove a tag from an image""" url = utils.urljoin(self.base_path, self.id, 'tags', tag) session.delete(url,) def upload(self, session): """Upload data into an existing image""" url = utils.urljoin(self.base_path, self.id, 'file') session.put(url, data=self.data, headers={"Content-Type": "application/octet-stream", "Accept": ""}) def download(self, session, stream=False): """Download the data contained in an image""" # TODO(briancurtin): This method should probably offload the get # operation into another thread or something of that nature. url = utils.urljoin(self.base_path, self.id, 'file') resp = session.get(url, stream=stream) # See the following bug report for details on why the checksum # code may sometimes depend on a second GET call. # https://storyboard.openstack.org/#!/story/1619675 checksum = resp.headers.get("Content-MD5") if checksum is None: # If we don't receive the Content-MD5 header with the download, # make an additional call to get the image details and look at # the checksum attribute. details = self.get(session) checksum = details.checksum # if we are returning the repsonse object, ensure that it # has the content-md5 header so that the caller doesn't # need to jump through the same hoops through which we # just jumped. if stream: resp.headers['content-md5'] = checksum return resp if checksum is not None: digest = hashlib.md5(resp.content).hexdigest() if digest != checksum: raise exceptions.InvalidResponse( "checksum mismatch: %s != %s" % (checksum, digest)) else: _logger.warn( "Unable to verify the integrity of image %s" % (self.id)) return resp.content def update(self, session, **attrs): url = utils.urljoin(self.base_path, self.id) headers = { 'Content-Type': 'application/openstack-images-v2.1-json-patch', 'Accept': '' } original = self.to_dict() # Update values from **attrs so they can be passed to jsonpatch new = copy.deepcopy(self.to_dict()) new.update(**attrs) patch_string = jsonpatch.make_patch(original, new).to_string() resp = session.patch(url, data=patch_string, headers=headers) self._translate_response(resp, has_body=True) return self