127 lines
3.6 KiB
Python
127 lines
3.6 KiB
Python
# Copyright 2018 Red Hat, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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class Error(Exception):
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"""Base class for Metalsmith errors."""
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class ReservationFailed(Error):
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"""Failed to reserve a suitable node.
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This is the base class for all reservation failures.
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"""
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class NodesNotFound(ReservationFailed):
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"""Initial nodes lookup returned an empty list.
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:ivar requested_resource_class: Requested resource class.
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:ivar requested_conductor_group: Requested conductor group to pick nodes
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from.
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"""
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def __init__(self, resource_class, conductor_group):
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message = "No available nodes%(rc)s found%(cg)s" % {
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'rc': 'with resource class %s' % resource_class
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if resource_class else '',
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'cg': 'in conductor group %s' % (conductor_group or '<default>')
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if conductor_group is not None else ''
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}
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self.requested_resource_class = resource_class
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self.requested_conductor_group = conductor_group
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super(NodesNotFound, self).__init__(message)
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class CustomPredicateFailed(ReservationFailed):
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"""Custom predicate yielded no nodes.
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:ivar nodes: List of nodes that were checked.
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"""
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def __init__(self, message, nodes):
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self.nodes = nodes
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super(CustomPredicateFailed, self).__init__(message)
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class CapabilitiesNotFound(ReservationFailed):
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"""Requested capabilities do not match any nodes.
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:ivar requested_capabilities: Requested node's capabilities.
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"""
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def __init__(self, message, capabilities):
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self.requested_capabilities = capabilities
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super(CapabilitiesNotFound, self).__init__(message)
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class TraitsNotFound(ReservationFailed):
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"""Requested traits do not match any nodes.
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:ivar requested_traits: Requested node's traits.
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"""
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def __init__(self, message, traits):
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self.requested_traits = traits
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super(TraitsNotFound, self).__init__(message)
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class ValidationFailed(ReservationFailed):
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"""Validation failed for all requested nodes."""
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class NoNodesReserved(ReservationFailed):
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"""All nodes are already reserved or failed validation.
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:ivar nodes: List of nodes that were checked.
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"""
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def __init__(self, nodes):
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self.nodes = nodes
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message = ('All the candidate nodes are already reserved '
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'or failed validation')
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super(NoNodesReserved, self).__init__(message)
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class InvalidImage(Error):
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"""Requested image is invalid and cannot be used."""
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class InvalidNIC(Error):
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"""Requested NIC is invalid and cannot be used."""
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class UnknownRootDiskSize(Error):
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"""Cannot determine the root disk size."""
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class InvalidNode(Error):
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"""This node cannot be deployed onto."""
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class DeploymentFailure(Error):
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"""One or more nodes have failed the deployment.
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:ivar nodes: List of failed nodes.
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"""
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def __init__(self, message, nodes):
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self.nodes = nodes
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super(DeploymentFailure, self).__init__(message)
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class InvalidInstance(Error):
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"""The node(s) does not have a metalsmith instance associated."""
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