105 lines
3.4 KiB
Go
105 lines
3.4 KiB
Go
/*
|
|
Copyright 2017 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 event
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
|
|
"k8s.io/apimachinery/pkg/fields"
|
|
"k8s.io/apimachinery/pkg/labels"
|
|
"k8s.io/apimachinery/pkg/runtime"
|
|
"k8s.io/apimachinery/pkg/util/validation/field"
|
|
"k8s.io/apiserver/pkg/registry/generic"
|
|
apistorage "k8s.io/apiserver/pkg/storage"
|
|
"k8s.io/apiserver/pkg/storage/names"
|
|
"k8s.io/kubernetes/pkg/api/legacyscheme"
|
|
api "k8s.io/kubernetes/pkg/apis/core"
|
|
"k8s.io/kubernetes/pkg/apis/core/validation"
|
|
)
|
|
|
|
// eventStrategy implements verification logic for Pod Presets.
|
|
type eventStrategy struct {
|
|
runtime.ObjectTyper
|
|
names.NameGenerator
|
|
}
|
|
|
|
// Strategy is the default logic that applies when creating and updating Pod Preset objects.
|
|
var Strategy = eventStrategy{legacyscheme.Scheme, names.SimpleNameGenerator}
|
|
|
|
// NamespaceScoped returns true because all Events need to be within a namespace.
|
|
func (eventStrategy) NamespaceScoped() bool {
|
|
return true
|
|
}
|
|
|
|
// PrepareForCreate clears the status of a Pod Preset before creation.
|
|
func (eventStrategy) PrepareForCreate(ctx context.Context, obj runtime.Object) {
|
|
}
|
|
|
|
// PrepareForUpdate clears fields that are not allowed to be set by end users on update.
|
|
func (eventStrategy) PrepareForUpdate(ctx context.Context, obj, old runtime.Object) {
|
|
}
|
|
|
|
// Validate validates a new Event.
|
|
func (eventStrategy) Validate(ctx context.Context, obj runtime.Object) field.ErrorList {
|
|
event := obj.(*api.Event)
|
|
return validation.ValidateEvent(event)
|
|
}
|
|
|
|
// Canonicalize normalizes the object after validation.
|
|
// AllowCreateOnUpdate is false for Event; this means POST is needed to create one.
|
|
func (eventStrategy) AllowCreateOnUpdate() bool {
|
|
return false
|
|
}
|
|
|
|
func (eventStrategy) Canonicalize(obj runtime.Object) {}
|
|
|
|
// ValidateUpdate is the default update validation for an end user.
|
|
func (eventStrategy) ValidateUpdate(ctx context.Context, obj, old runtime.Object) field.ErrorList {
|
|
event := obj.(*api.Event)
|
|
return validation.ValidateEvent(event)
|
|
}
|
|
|
|
// AllowUnconditionalUpdate is the default update policy for Event objects.
|
|
func (eventStrategy) AllowUnconditionalUpdate() bool {
|
|
return true
|
|
}
|
|
|
|
// SelectableFields returns a field set that represents the object.
|
|
func SelectableFields(pip *api.Event) fields.Set {
|
|
return generic.ObjectMetaFieldsSet(&pip.ObjectMeta, true)
|
|
}
|
|
|
|
// GetAttrs returns labels and fields of a given object for filtering purposes.
|
|
func GetAttrs(obj runtime.Object) (labels.Set, fields.Set, error) {
|
|
pip, ok := obj.(*api.Event)
|
|
if !ok {
|
|
return nil, nil, fmt.Errorf("given object is not a Event")
|
|
}
|
|
return labels.Set(pip.ObjectMeta.Labels), SelectableFields(pip), nil
|
|
}
|
|
|
|
// Matcher is the filter used by the generic etcd backend to watch events
|
|
// from etcd to clients of the apiserver only interested in specific labels/fields.
|
|
func Matcher(label labels.Selector, field fields.Selector) apistorage.SelectionPredicate {
|
|
return apistorage.SelectionPredicate{
|
|
Label: label,
|
|
Field: field,
|
|
GetAttrs: GetAttrs,
|
|
}
|
|
}
|