kuryr-kubernetes/kuryr_kubernetes/exceptions.py
Michał Dulko 574f5eab4b Nested: Detect MTU mismatch
Apparently it is possible to override Neutron's MTU setting through DHCP
agent. This may lead to a situation when node (VM) network will have a
different MTU than pod network. In such case setting pod network's MTU
on a Pod's veth pair will fail due to MTU mismatch.

This commit makes sure we detect such situation soon and produce a log
message with a hint about the root cause.

Change-Id: Ib694950c77ac7c3fd480f579b627dc79bfceac85
Closes-Bug: 1863212
2020-02-21 12:02:58 +01:00

85 lines
2.5 KiB
Python

# Copyright (c) 2016 Mirantis, Inc.
# 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.
class K8sClientException(Exception):
pass
class IntegrityError(RuntimeError):
pass
class ResourceNotReady(Exception):
def __init__(self, resource):
super(ResourceNotReady, self).__init__("Resource not ready: %r"
% resource)
class K8sResourceNotFound(K8sClientException):
def __init__(self, resource):
super(K8sResourceNotFound, self).__init__("Resource not "
"found: %r" % resource)
class InvalidKuryrNetCRD(Exception):
pass
class InvalidKuryrNetworkAnnotation(Exception):
pass
class CNIError(Exception):
pass
def format_msg(exception):
return "%s: %s" % (exception.__class__.__name__, exception)
class K8sNodeTrunkPortFailure(Exception):
"""Exception represents that error is related to K8s node trunk port
This exception is thrown when Neutron port is not associated to a Neutron
vlan trunk.
"""
class AllowedAddressAlreadyPresent(Exception):
"""Exception indicates an already present 'allowed address pair' on port
This exception is raised when an attempt to add an already inserted
'allowed address pair' on a port is made. Such a condition likely indicates
a bad program state or a programming bug.
"""
class MultiPodDriverPoolConfigurationNotSupported(Exception):
"""Exception indicates a wrong configuration of the multi pod driver pool
This exception is raised when the multi pod driver pool is not properly
configured. This could be due to three different reasons:
1. One of the pool drivers is not supported
2. One of the pod drivers is not supported
3. One of the pod drivers is not supported by its selected pool driver
"""
class CNIBindingFailure(Exception):
"""Exception indicates a binding/unbinding VIF failure in CNI"""
def __init__(self, message):
super(CNIBindingFailure, self).__init__(message)