ironic/ironic/api/controllers/v1/__init__.py
Dmitry Tantsur 192301ae65 Abstract away pecan.request/response
This change changes direct usages of pecan context objects to wrapper
in ironic.api, so that we can easier swap them with another implementation.

Change-Id: Ia1e411e27001860b14f4f765e26ed9f5893233d3
2019-07-16 17:47:13 +02:00

303 lines
12 KiB
Python

# All Rights Reserved.
#
# 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.
"""
Version 1 of the Ironic API
Specification can be found at doc/source/webapi/v1.rst
"""
import pecan
from pecan import rest
from webob import exc
from wsme import types as wtypes
from ironic import api
from ironic.api.controllers import base
from ironic.api.controllers import link
from ironic.api.controllers.v1 import allocation
from ironic.api.controllers.v1 import chassis
from ironic.api.controllers.v1 import conductor
from ironic.api.controllers.v1 import deploy_template
from ironic.api.controllers.v1 import driver
from ironic.api.controllers.v1 import event
from ironic.api.controllers.v1 import node
from ironic.api.controllers.v1 import port
from ironic.api.controllers.v1 import portgroup
from ironic.api.controllers.v1 import ramdisk
from ironic.api.controllers.v1 import utils
from ironic.api.controllers.v1 import versions
from ironic.api.controllers.v1 import volume
from ironic.api.controllers import version
from ironic.api import expose
from ironic.common.i18n import _
BASE_VERSION = versions.BASE_VERSION
def min_version():
return base.Version(
{base.Version.string: versions.min_version_string()},
versions.min_version_string(), versions.max_version_string())
def max_version():
return base.Version(
{base.Version.string: versions.max_version_string()},
versions.min_version_string(), versions.max_version_string())
class MediaType(base.APIBase):
"""A media type representation."""
base = wtypes.text
type = wtypes.text
def __init__(self, base, type):
self.base = base
self.type = type
class V1(base.APIBase):
"""The representation of the version 1 of the API."""
id = wtypes.text
"""The ID of the version, also acts as the release number"""
media_types = [MediaType]
"""An array of supported media types for this version"""
links = [link.Link]
"""Links that point to a specific URL for this version and documentation"""
chassis = [link.Link]
"""Links to the chassis resource"""
nodes = [link.Link]
"""Links to the nodes resource"""
ports = [link.Link]
"""Links to the ports resource"""
portgroups = [link.Link]
"""Links to the portgroups resource"""
drivers = [link.Link]
"""Links to the drivers resource"""
volume = [link.Link]
"""Links to the volume resource"""
lookup = [link.Link]
"""Links to the lookup resource"""
heartbeat = [link.Link]
"""Links to the heartbeat resource"""
conductors = [link.Link]
"""Links to the conductors resource"""
allocations = [link.Link]
"""Links to the allocations resource"""
deploy_templates = [link.Link]
"""Links to the deploy_templates resource"""
version = version.Version
"""Version discovery information."""
events = [link.Link]
"""Links to the events resource"""
@staticmethod
def convert():
v1 = V1()
v1.id = "v1"
v1.links = [link.Link.make_link('self', api.request.public_url,
'v1', '', bookmark=True),
link.Link.make_link('describedby',
'https://docs.openstack.org',
'/ironic/latest/contributor/',
'webapi.html',
bookmark=True, type='text/html')
]
v1.media_types = [MediaType('application/json',
'application/vnd.openstack.ironic.v1+json')]
v1.chassis = [link.Link.make_link('self', api.request.public_url,
'chassis', ''),
link.Link.make_link('bookmark',
api.request.public_url,
'chassis', '',
bookmark=True)
]
v1.nodes = [link.Link.make_link('self', api.request.public_url,
'nodes', ''),
link.Link.make_link('bookmark',
api.request.public_url,
'nodes', '',
bookmark=True)
]
v1.ports = [link.Link.make_link('self', api.request.public_url,
'ports', ''),
link.Link.make_link('bookmark',
api.request.public_url,
'ports', '',
bookmark=True)
]
if utils.allow_portgroups():
v1.portgroups = [
link.Link.make_link('self', api.request.public_url,
'portgroups', ''),
link.Link.make_link('bookmark', api.request.public_url,
'portgroups', '', bookmark=True)
]
v1.drivers = [link.Link.make_link('self', api.request.public_url,
'drivers', ''),
link.Link.make_link('bookmark',
api.request.public_url,
'drivers', '',
bookmark=True)
]
if utils.allow_volume():
v1.volume = [
link.Link.make_link('self',
api.request.public_url,
'volume', ''),
link.Link.make_link('bookmark',
api.request.public_url,
'volume', '',
bookmark=True)
]
if utils.allow_ramdisk_endpoints():
v1.lookup = [link.Link.make_link('self', api.request.public_url,
'lookup', ''),
link.Link.make_link('bookmark',
api.request.public_url,
'lookup', '',
bookmark=True)
]
v1.heartbeat = [link.Link.make_link('self',
api.request.public_url,
'heartbeat', ''),
link.Link.make_link('bookmark',
api.request.public_url,
'heartbeat', '',
bookmark=True)
]
if utils.allow_expose_conductors():
v1.conductors = [link.Link.make_link('self',
api.request.public_url,
'conductors', ''),
link.Link.make_link('bookmark',
api.request.public_url,
'conductors', '',
bookmark=True)
]
if utils.allow_allocations():
v1.allocations = [link.Link.make_link('self',
api.request.public_url,
'allocations', ''),
link.Link.make_link('bookmark',
api.request.public_url,
'allocations', '',
bookmark=True)
]
if utils.allow_expose_events():
v1.events = [link.Link.make_link('self', api.request.public_url,
'events', ''),
link.Link.make_link('bookmark',
api.request.public_url,
'events', '',
bookmark=True)
]
if utils.allow_deploy_templates():
v1.deploy_templates = [
link.Link.make_link('self',
api.request.public_url,
'deploy_templates', ''),
link.Link.make_link('bookmark',
api.request.public_url,
'deploy_templates', '',
bookmark=True)
]
v1.version = version.default_version()
return v1
class Controller(rest.RestController):
"""Version 1 API controller root."""
nodes = node.NodesController()
ports = port.PortsController()
portgroups = portgroup.PortgroupsController()
chassis = chassis.ChassisController()
drivers = driver.DriversController()
volume = volume.VolumeController()
lookup = ramdisk.LookupController()
heartbeat = ramdisk.HeartbeatController()
conductors = conductor.ConductorsController()
allocations = allocation.AllocationsController()
events = event.EventsController()
deploy_templates = deploy_template.DeployTemplatesController()
@expose.expose(V1)
def get(self):
# NOTE: The reason why convert() it's being called for every
# request is because we need to get the host url from
# the request object to make the links.
return V1.convert()
def _check_version(self, version, headers=None):
if headers is None:
headers = {}
# ensure that major version in the URL matches the header
if version.major != BASE_VERSION:
raise exc.HTTPNotAcceptable(_(
"Mutually exclusive versions requested. Version %(ver)s "
"requested but not supported by this service. The supported "
"version range is: [%(min)s, %(max)s].") %
{'ver': version, 'min': versions.min_version_string(),
'max': versions.max_version_string()},
headers=headers)
# ensure the minor version is within the supported range
if version < min_version() or version > max_version():
raise exc.HTTPNotAcceptable(_(
"Version %(ver)s was requested but the minor version is not "
"supported by this service. The supported version range is: "
"[%(min)s, %(max)s].") %
{'ver': version, 'min': versions.min_version_string(),
'max': versions.max_version_string()},
headers=headers)
@pecan.expose()
def _route(self, args, request=None):
v = base.Version(api.request.headers, versions.min_version_string(),
versions.max_version_string())
# Always set the min and max headers
api.response.headers[base.Version.min_string] = (
versions.min_version_string())
api.response.headers[base.Version.max_string] = (
versions.max_version_string())
# assert that requested version is supported
self._check_version(v, api.response.headers)
api.response.headers[base.Version.string] = str(v)
api.request.version = v
return super(Controller, self)._route(args, request)
__all__ = ('Controller',)