210 lines
8.1 KiB
Python
210 lines
8.1 KiB
Python
# Copyright 2016 Red Hat, Inc.
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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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from oslo_config import cfg
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from oslo_log import log
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from pecan import rest
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from six.moves import http_client
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from wsme import types as wtypes
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from ironic import api
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from ironic.api.controllers import base
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from ironic.api.controllers.v1 import node as node_ctl
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from ironic.api.controllers.v1 import types
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from ironic.api.controllers.v1 import utils as api_utils
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from ironic.api import expose
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from ironic.common import exception
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from ironic.common.i18n import _
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from ironic.common import policy
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from ironic.common import states
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from ironic.common import utils
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from ironic import objects
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CONF = cfg.CONF
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LOG = log.getLogger(__name__)
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_LOOKUP_RETURN_FIELDS = ('uuid', 'properties', 'instance_info',
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'driver_internal_info')
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def config():
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return {
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'metrics': {
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'backend': CONF.metrics.agent_backend,
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'prepend_host': CONF.metrics.agent_prepend_host,
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'prepend_uuid': CONF.metrics.agent_prepend_uuid,
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'prepend_host_reverse': CONF.metrics.agent_prepend_host_reverse,
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'global_prefix': CONF.metrics.agent_global_prefix
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},
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'metrics_statsd': {
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'statsd_host': CONF.metrics_statsd.agent_statsd_host,
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'statsd_port': CONF.metrics_statsd.agent_statsd_port
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},
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'heartbeat_timeout': CONF.api.ramdisk_heartbeat_timeout
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}
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class LookupResult(base.APIBase):
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"""API representation of the node lookup result."""
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node = node_ctl.Node
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"""The short node representation."""
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config = {wtypes.text: types.jsontype}
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"""The configuration to pass to the ramdisk."""
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@classmethod
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def sample(cls):
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return cls(node=node_ctl.Node.sample(),
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config={'heartbeat_timeout': 600})
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@classmethod
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def convert_with_links(cls, node):
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node = node_ctl.Node.convert_with_links(node, _LOOKUP_RETURN_FIELDS)
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return cls(node=node, config=config())
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class LookupController(rest.RestController):
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"""Controller handling node lookup for a deploy ramdisk."""
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@property
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def lookup_allowed_states(self):
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if CONF.deploy.fast_track:
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return states.FASTTRACK_LOOKUP_ALLOWED_STATES
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return states.LOOKUP_ALLOWED_STATES
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@expose.expose(LookupResult, types.listtype, types.uuid)
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def get_all(self, addresses=None, node_uuid=None):
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"""Look up a node by its MAC addresses and optionally UUID.
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If the "restrict_lookup" option is set to True (the default), limit
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the search to nodes in certain transient states (e.g. deploy wait).
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:param addresses: list of MAC addresses for a node.
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:param node_uuid: UUID of a node.
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:raises: NotFound if requested API version does not allow this
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endpoint.
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:raises: NotFound if suitable node was not found or node's provision
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state is not allowed for the lookup.
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:raises: IncompleteLookup if neither node UUID nor any valid MAC
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address was provided.
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"""
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if not api_utils.allow_ramdisk_endpoints():
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raise exception.NotFound()
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cdict = api.request.context.to_policy_values()
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policy.authorize('baremetal:driver:ipa_lookup', cdict, cdict)
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# Validate the list of MAC addresses
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if addresses is None:
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addresses = []
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valid_addresses = []
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invalid_addresses = []
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for addr in addresses:
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try:
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mac = utils.validate_and_normalize_mac(addr)
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valid_addresses.append(mac)
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except exception.InvalidMAC:
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invalid_addresses.append(addr)
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if invalid_addresses:
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node_log = ('' if not node_uuid
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else '(Node UUID: %s)' % node_uuid)
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LOG.warning('The following MAC addresses "%(addrs)s" are '
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'invalid and will be ignored by the lookup '
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'request %(node)s',
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{'addrs': ', '.join(invalid_addresses),
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'node': node_log})
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if not valid_addresses and not node_uuid:
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raise exception.IncompleteLookup()
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try:
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if node_uuid:
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node = objects.Node.get_by_uuid(
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api.request.context, node_uuid)
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else:
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node = objects.Node.get_by_port_addresses(
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api.request.context, valid_addresses)
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except exception.NotFound:
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# NOTE(dtantsur): we are reraising the same exception to make sure
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# we don't disclose the difference between nodes that are not found
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# at all and nodes in a wrong state by different error messages.
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raise exception.NotFound()
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if (CONF.api.restrict_lookup
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and node.provision_state not in self.lookup_allowed_states):
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raise exception.NotFound()
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return LookupResult.convert_with_links(node)
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class HeartbeatController(rest.RestController):
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"""Controller handling heartbeats from deploy ramdisk."""
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@expose.expose(None, types.uuid_or_name, wtypes.text,
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wtypes.text, status_code=http_client.ACCEPTED)
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def post(self, node_ident, callback_url, agent_version=None):
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"""Process a heartbeat from the deploy ramdisk.
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:param node_ident: the UUID or logical name of a node.
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:param callback_url: the URL to reach back to the ramdisk.
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:param agent_version: The version of the agent that is heartbeating.
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``None`` indicates that the agent that is heartbeating is a version
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before sending agent_version was introduced so agent v3.0.0 (the
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last release before sending agent_version was introduced) will be
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assumed.
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:raises: NodeNotFound if node with provided UUID or name was not found.
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:raises: InvalidUuidOrName if node_ident is not valid name or UUID.
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:raises: NoValidHost if RPC topic for node could not be retrieved.
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:raises: NotFound if requested API version does not allow this
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endpoint.
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"""
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if not api_utils.allow_ramdisk_endpoints():
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raise exception.NotFound()
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if agent_version and not api_utils.allow_agent_version_in_heartbeat():
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raise exception.InvalidParameterValue(
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_('Field "agent_version" not recognised'))
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cdict = api.request.context.to_policy_values()
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policy.authorize('baremetal:node:ipa_heartbeat', cdict, cdict)
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rpc_node = api_utils.get_rpc_node_with_suffix(node_ident)
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dii = rpc_node['driver_internal_info']
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agent_url = dii.get('agent_url')
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# If we have an agent_url on file, and we get something different
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# we should fail because this is unexpected behavior of the agent.
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if (agent_url is not None
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and agent_url != callback_url):
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LOG.error('Received heartbeat for node %(node)s with '
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'callback URL %(url)s. This is not expected, '
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'and the heartbeat will not be processed.',
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{'node': rpc_node.uuid, 'url': callback_url})
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raise exception.Invalid(
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_('Detected change in ramdisk provided '
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'"callback_url"'))
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try:
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topic = api.request.rpcapi.get_topic_for(rpc_node)
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except exception.NoValidHost as e:
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e.code = http_client.BAD_REQUEST
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raise
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api.request.rpcapi.heartbeat(
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api.request.context, rpc_node.uuid, callback_url,
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agent_version, topic=topic)
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