303 lines
13 KiB
Python
303 lines
13 KiB
Python
# Copyright 2014 IBM Corp.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import re
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from nova import exception
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from nova.i18n import _
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# Define the minimum and maximum version of the API across all of the
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# REST API. The format of the version is:
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# X.Y where:
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#
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# - X will only be changed if a significant backwards incompatible API
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# change is made which affects the API as whole. That is, something
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# that is only very very rarely incremented.
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#
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# - Y when you make any change to the API. Note that this includes
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# semantic changes which may not affect the input or output formats or
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# even originate in the API code layer. We are not distinguishing
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# between backwards compatible and backwards incompatible changes in
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# the versioning system. It must be made clear in the documentation as
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# to what is a backwards compatible change and what is a backwards
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# incompatible one.
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#
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# You must update the API version history string below with a one or
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# two line description as well as update rest_api_version_history.rst
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REST_API_VERSION_HISTORY = """REST API Version History:
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* 2.1 - Initial version. Equivalent to v2.0 code
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* 2.2 - Adds (keypair) type parameter for os-keypairs plugin
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Fixes success status code for create/delete a keypair method
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* 2.3 - Exposes additional os-extended-server-attributes
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Exposes delete_on_termination for os-extended-volumes
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* 2.4 - Exposes reserved field in os-fixed-ips.
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* 2.5 - Allow server search option ip6 for non-admin
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* 2.6 - Consolidate the APIs for getting remote consoles
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* 2.7 - Check flavor type before add tenant access.
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* 2.8 - Add new protocol for VM console (mks)
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* 2.9 - Exposes lock information in server details.
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* 2.10 - Allow admins to query, create and delete keypairs owned by any
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user.
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* 2.11 - Exposes forced_down attribute for os-services
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* 2.12 - Exposes VIF net_id in os-virtual-interfaces
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* 2.13 - Add project id and user id information for os-server-groups API
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* 2.14 - Remove onSharedStorage from evacuate request body and remove
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adminPass from the response body
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* 2.15 - Add soft-affinity and soft-anti-affinity policies
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* 2.16 - Exposes host_status for servers/detail and servers/{server_id}
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* 2.17 - Add trigger_crash_dump to server actions
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* 2.18 - Makes project_id optional in v2.1
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* 2.19 - Allow user to set and get the server description
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* 2.20 - Add attach and detach volume operations for instances in shelved
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and shelved_offloaded state
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* 2.21 - Make os-instance-actions read deleted instances
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* 2.22 - Add API to force live migration to complete
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* 2.23 - Add index/show API for server migrations.
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Also add migration_type for /os-migrations and add ref link for it
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when the migration is an in progress live migration.
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* 2.24 - Add API to cancel a running live migration
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* 2.25 - Make block_migration support 'auto' and remove
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disk_over_commit for os-migrateLive.
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* 2.26 - Adds support of server tags
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* 2.27 - Adds support for new-style microversion headers while
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keeping support for the original style.
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* 2.28 - Changes compute_node.cpu_info from string to object
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* 2.29 - Add a force flag in evacuate request body and change the
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behaviour for the host flag by calling the scheduler.
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* 2.30 - Add a force flag in live-migrate request body and change the
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behaviour for the host flag by calling the scheduler.
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* 2.31 - Fix os-console-auth-tokens to work for all console types.
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* 2.32 - Add tag to networks and block_device_mapping_v2 in server boot
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request body.
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* 2.33 - Add pagination support for hypervisors.
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* 2.34 - Checks before live-migration are made in asynchronous way.
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os-Migratelive Action does not throw badRequest in case of
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pre-checks failure. Verification result is available over
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instance-actions.
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* 2.35 - Adds keypairs pagination support.
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* 2.36 - Deprecates all the API which proxy to another service and fping
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API.
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* 2.37 - Adds support for auto-allocating networking, otherwise known as
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"Get me a Network". Also enforces server.networks.uuid to be in
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UUID format.
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* 2.38 - Add a condition to return HTTPBadRequest if invalid status is
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provided for listing servers.
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* 2.39 - Deprecates image-metadata proxy API
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* 2.40 - Adds simple tenant usage pagination support.
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* 2.41 - Return uuid attribute for aggregates.
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* 2.42 - In the context of device tagging at instance boot time,
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re-introduce the tag attribute that, due to bugs, was lost
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starting with version 2.33 for block devices and starting with
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version 2.37 for network interfaces.
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* 2.43 - Deprecate os-hosts API
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* 2.44 - The servers action addFixedIp, removeFixedIp, addFloatingIp,
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removeFloatingIp and os-virtual-interfaces APIs are deprecated.
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* 2.45 - The createImage and createBackup APIs no longer return a Location
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header in the response for the snapshot image, they now return a
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json dict in the response body with an image_id key and uuid
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value.
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* 2.46 - Return ``X-OpenStack-Request-ID`` header on requests.
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* 2.47 - When displaying server details, display the flavor as a dict
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rather than a link. If the user is prevented from retrieving
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the flavor extra-specs by policy, simply omit the field from
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the output.
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* 2.48 - Standardize VM diagnostics info.
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* 2.49 - Support tagged attachment of network interfaces and block devices.
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* 2.50 - Exposes ``server_groups`` and ``server_group_members`` keys in
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GET & PUT ``os-quota-class-sets`` APIs response.
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Also filter out Network related quotas from
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``os-quota-class-sets`` API
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* 2.51 - Adds new event name to external-events (volume-extended). Also,
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non-admins can see instance action event details except for the
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traceback field.
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* 2.52 - Adds support for applying tags when creating a server.
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* 2.53 - Service and compute node (hypervisor) database ids are hidden.
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The os-services and os-hypervisors APIs now return a uuid in the
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id field, and takes a uuid in requests. PUT and GET requests
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and responses are also changed.
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* 2.54 - Enable reset key pair while rebuilding instance.
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* 2.55 - Added flavor.description to GET/POST/PUT flavors APIs.
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* 2.56 - Add a host parameter in migrate request body in order to
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enable users to specify a target host in cold migration.
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The target host is checked by the scheduler.
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* 2.57 - Deprecated personality files from POST /servers and the rebuild
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server action APIs. Added the ability to pass new user_data to
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the rebuild server action API. Personality / file injection
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related limits and quota resources are also removed.
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* 2.58 - Add pagination support and changes-since filter for
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os-instance-actions API.
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* 2.59 - Add pagination support and changes-since filter for os-migrations
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API. And the os-migrations API now returns both the id and the
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uuid in response.
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* 2.60 - Add support for attaching a single volume to multiple instances.
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* 2.61 - Exposes flavor extra_specs in the flavor representation. Flavor
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extra_specs will be included in Response body of GET, POST, PUT
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/flavors APIs.
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* 2.62 - Add ``host`` and ``hostId`` fields to instance action detail API
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responses.
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* 2.63 - Add support for applying trusted certificates when creating or
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rebuilding a server.
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"""
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# The minimum and maximum versions of the API supported
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# The default api version request is defined to be the
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# minimum version of the API supported.
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# Note(cyeoh): This only applies for the v2.1 API once microversions
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# support is fully merged. It does not affect the V2 API.
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_MIN_API_VERSION = "2.1"
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_MAX_API_VERSION = "2.63"
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DEFAULT_API_VERSION = _MIN_API_VERSION
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# Almost all proxy APIs which are related to network, images and baremetal
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# were deprecated from 2.36.
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MAX_PROXY_API_SUPPORT_VERSION = '2.35'
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MIN_WITHOUT_PROXY_API_SUPPORT_VERSION = '2.36'
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# Starting from microversion 2.39 also image-metadata proxy API is deprecated.
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MAX_IMAGE_META_PROXY_API_VERSION = '2.38'
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MIN_WITHOUT_IMAGE_META_PROXY_API_VERSION = '2.39'
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# NOTE(cyeoh): min and max versions declared as functions so we can
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# mock them for unittests. Do not use the constants directly anywhere
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# else.
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def min_api_version():
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return APIVersionRequest(_MIN_API_VERSION)
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def max_api_version():
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return APIVersionRequest(_MAX_API_VERSION)
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def is_supported(req, min_version=_MIN_API_VERSION,
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max_version=_MAX_API_VERSION):
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"""Check if API request version satisfies version restrictions.
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:param req: request object
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:param min_version: minimal version of API needed for correct
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request processing
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:param max_version: maximum version of API needed for correct
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request processing
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:returns: True if request satisfies minimal and maximum API version
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requirements. False in other case.
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"""
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return (APIVersionRequest(max_version) >= req.api_version_request >=
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APIVersionRequest(min_version))
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class APIVersionRequest(object):
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"""This class represents an API Version Request with convenience
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methods for manipulation and comparison of version
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numbers that we need to do to implement microversions.
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"""
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def __init__(self, version_string=None):
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"""Create an API version request object.
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:param version_string: String representation of APIVersionRequest.
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Correct format is 'X.Y', where 'X' and 'Y' are int values.
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None value should be used to create Null APIVersionRequest,
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which is equal to 0.0
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"""
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self.ver_major = 0
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self.ver_minor = 0
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if version_string is not None:
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match = re.match(r"^([1-9]\d*)\.([1-9]\d*|0)$",
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version_string)
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if match:
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self.ver_major = int(match.group(1))
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self.ver_minor = int(match.group(2))
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else:
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raise exception.InvalidAPIVersionString(version=version_string)
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def __str__(self):
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"""Debug/Logging representation of object."""
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return ("API Version Request Major: %s, Minor: %s"
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% (self.ver_major, self.ver_minor))
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def is_null(self):
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return self.ver_major == 0 and self.ver_minor == 0
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def _format_type_error(self, other):
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return TypeError(_("'%(other)s' should be an instance of '%(cls)s'") %
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{"other": other, "cls": self.__class__})
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def __lt__(self, other):
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if not isinstance(other, APIVersionRequest):
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raise self._format_type_error(other)
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return ((self.ver_major, self.ver_minor) <
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(other.ver_major, other.ver_minor))
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def __eq__(self, other):
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if not isinstance(other, APIVersionRequest):
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raise self._format_type_error(other)
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return ((self.ver_major, self.ver_minor) ==
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(other.ver_major, other.ver_minor))
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def __gt__(self, other):
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if not isinstance(other, APIVersionRequest):
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raise self._format_type_error(other)
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return ((self.ver_major, self.ver_minor) >
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(other.ver_major, other.ver_minor))
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def __le__(self, other):
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return self < other or self == other
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def __ne__(self, other):
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return not self.__eq__(other)
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def __ge__(self, other):
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return self > other or self == other
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def matches(self, min_version, max_version):
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"""Returns whether the version object represents a version
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greater than or equal to the minimum version and less than
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or equal to the maximum version.
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@param min_version: Minimum acceptable version.
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@param max_version: Maximum acceptable version.
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@returns: boolean
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If min_version is null then there is no minimum limit.
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If max_version is null then there is no maximum limit.
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If self is null then raise ValueError
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"""
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if self.is_null():
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raise ValueError
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if max_version.is_null() and min_version.is_null():
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return True
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elif max_version.is_null():
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return min_version <= self
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elif min_version.is_null():
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return self <= max_version
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else:
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return min_version <= self <= max_version
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def get_string(self):
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"""Converts object to string representation which if used to create
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an APIVersionRequest object results in the same version request.
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"""
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if self.is_null():
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raise ValueError
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return "%s.%s" % (self.ver_major, self.ver_minor)
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