mirror of https://github.com/k3s-io/k3s
83 lines
3.1 KiB
Go
83 lines
3.1 KiB
Go
/*
|
|
Copyright 2016 The Kubernetes Authors.
|
|
|
|
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.
|
|
*/
|
|
|
|
package predicates
|
|
|
|
import "fmt"
|
|
|
|
const (
|
|
podCountResourceName string = "PodCount"
|
|
cpuResourceName string = "CPU"
|
|
memoryResourceName string = "Memory"
|
|
nvidiaGpuResourceName string = "NvidiaGpu"
|
|
)
|
|
|
|
var (
|
|
// The predicateName tries to be consistent as the predicate name used in DefaultAlgorithmProvider defined in
|
|
// defaults.go (which tend to be stable for backward compatibility)
|
|
ErrDiskConflict = newPredicateFailureError("NoDiskConflict")
|
|
ErrVolumeZoneConflict = newPredicateFailureError("NoVolumeZoneConflict")
|
|
ErrNodeSelectorNotMatch = newPredicateFailureError("MatchNodeSelector")
|
|
ErrPodAffinityNotMatch = newPredicateFailureError("MatchInterPodAffinity")
|
|
ErrTaintsTolerationsNotMatch = newPredicateFailureError("PodToleratesNodeTaints")
|
|
ErrPodNotMatchHostName = newPredicateFailureError("HostName")
|
|
ErrPodNotFitsHostPorts = newPredicateFailureError("PodFitsHostPorts")
|
|
ErrNodeLabelPresenceViolated = newPredicateFailureError("CheckNodeLabelPresence")
|
|
ErrServiceAffinityViolated = newPredicateFailureError("CheckServiceAffinity")
|
|
ErrMaxVolumeCountExceeded = newPredicateFailureError("MaxVolumeCount")
|
|
ErrNodeUnderMemoryPressure = newPredicateFailureError("NodeUnderMemoryPressure")
|
|
ErrNodeUnderDiskPressure = newPredicateFailureError("NodeUnderDiskPressure")
|
|
// ErrFakePredicate is used for test only. The fake predicates returning false also returns error
|
|
// as ErrFakePredicate.
|
|
ErrFakePredicate = newPredicateFailureError("FakePredicateError")
|
|
)
|
|
|
|
// InsufficientResourceError is an error type that indicates what kind of resource limit is
|
|
// hit and caused the unfitting failure.
|
|
type InsufficientResourceError struct {
|
|
// resourceName is the name of the resource that is insufficient
|
|
ResourceName string
|
|
requested int64
|
|
used int64
|
|
capacity int64
|
|
}
|
|
|
|
func newInsufficientResourceError(resourceName string, requested, used, capacity int64) *InsufficientResourceError {
|
|
return &InsufficientResourceError{
|
|
ResourceName: resourceName,
|
|
requested: requested,
|
|
used: used,
|
|
capacity: capacity,
|
|
}
|
|
}
|
|
|
|
func (e *InsufficientResourceError) Error() string {
|
|
return fmt.Sprintf("Node didn't have enough resource: %s, requested: %d, used: %d, capacity: %d",
|
|
e.ResourceName, e.requested, e.used, e.capacity)
|
|
}
|
|
|
|
type PredicateFailureError struct {
|
|
PredicateName string
|
|
}
|
|
|
|
func newPredicateFailureError(predicateName string) *PredicateFailureError {
|
|
return &PredicateFailureError{predicateName}
|
|
}
|
|
|
|
func (e *PredicateFailureError) Error() string {
|
|
return fmt.Sprintf("Predicate %s failed", e.PredicateName)
|
|
}
|