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104 lines
3.5 KiB
Go
104 lines
3.5 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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 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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*/
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package predicates
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import (
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"fmt"
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"k8s.io/kubernetes/pkg/api/v1"
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)
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var (
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// The predicateName tries to be consistent as the predicate name used in DefaultAlgorithmProvider defined in
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// defaults.go (which tend to be stable for backward compatibility)
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ErrDiskConflict = newPredicateFailureError("NoDiskConflict")
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ErrVolumeZoneConflict = newPredicateFailureError("NoVolumeZoneConflict")
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ErrNodeSelectorNotMatch = newPredicateFailureError("MatchNodeSelector")
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ErrPodAffinityNotMatch = newPredicateFailureError("MatchInterPodAffinity")
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ErrTaintsTolerationsNotMatch = newPredicateFailureError("PodToleratesNodeTaints")
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ErrPodNotMatchHostName = newPredicateFailureError("HostName")
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ErrPodNotFitsHostPorts = newPredicateFailureError("PodFitsHostPorts")
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ErrNodeLabelPresenceViolated = newPredicateFailureError("CheckNodeLabelPresence")
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ErrServiceAffinityViolated = newPredicateFailureError("CheckServiceAffinity")
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ErrMaxVolumeCountExceeded = newPredicateFailureError("MaxVolumeCount")
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ErrNodeUnderMemoryPressure = newPredicateFailureError("NodeUnderMemoryPressure")
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ErrNodeUnderDiskPressure = newPredicateFailureError("NodeUnderDiskPressure")
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// ErrFakePredicate is used for test only. The fake predicates returning false also returns error
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// as ErrFakePredicate.
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ErrFakePredicate = newPredicateFailureError("FakePredicateError")
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)
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// InsufficientResourceError is an error type that indicates what kind of resource limit is
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// hit and caused the unfitting failure.
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type InsufficientResourceError struct {
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// resourceName is the name of the resource that is insufficient
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ResourceName v1.ResourceName
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requested int64
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used int64
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capacity int64
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}
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func NewInsufficientResourceError(resourceName v1.ResourceName, requested, used, capacity int64) *InsufficientResourceError {
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return &InsufficientResourceError{
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ResourceName: resourceName,
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requested: requested,
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used: used,
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capacity: capacity,
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}
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}
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func (e *InsufficientResourceError) Error() string {
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return fmt.Sprintf("Node didn't have enough resource: %s, requested: %d, used: %d, capacity: %d",
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e.ResourceName, e.requested, e.used, e.capacity)
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}
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func (e *InsufficientResourceError) GetReason() string {
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return fmt.Sprintf("Insufficient %v", e.ResourceName)
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}
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func (e *InsufficientResourceError) GetInsufficientAmount() int64 {
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return e.requested - (e.capacity - e.used)
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}
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type PredicateFailureError struct {
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PredicateName string
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}
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func newPredicateFailureError(predicateName string) *PredicateFailureError {
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return &PredicateFailureError{PredicateName: predicateName}
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}
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func (e *PredicateFailureError) Error() string {
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return fmt.Sprintf("Predicate %s failed", e.PredicateName)
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}
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func (e *PredicateFailureError) GetReason() string {
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return e.PredicateName
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}
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type FailureReason struct {
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reason string
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}
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func NewFailureReason(msg string) *FailureReason {
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return &FailureReason{reason: msg}
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}
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func (e *FailureReason) GetReason() string {
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return e.reason
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}
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