mirror of
https://github.com/ceph/ceph-csi.git
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65 lines
2.0 KiB
Go
65 lines
2.0 KiB
Go
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/*
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Copyright 2021 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 events
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import (
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"fmt"
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corev1 "k8s.io/api/core/v1"
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eventsv1 "k8s.io/api/events/v1"
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eventsv1beta1 "k8s.io/api/events/v1beta1"
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"k8s.io/apimachinery/pkg/fields"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/apimachinery/pkg/types"
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)
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var mapping = map[schema.GroupVersion]string{
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eventsv1.SchemeGroupVersion: "regarding",
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eventsv1beta1.SchemeGroupVersion: "regarding",
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corev1.SchemeGroupVersion: "involvedObject",
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}
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// GetFieldSelector returns the appropriate field selector based on the API version being used to communicate with the server.
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// The returned field selector can be used with List and Watch to filter desired events.
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func GetFieldSelector(eventsGroupVersion schema.GroupVersion, regardingGroupVersionKind schema.GroupVersionKind, regardingName string, regardingUID types.UID) (fields.Selector, error) {
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field := fields.Set{}
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if _, ok := mapping[eventsGroupVersion]; !ok {
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return nil, fmt.Errorf("unknown version %v", eventsGroupVersion)
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}
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prefix := mapping[eventsGroupVersion]
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if len(regardingName) > 0 {
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field[prefix+".name"] = regardingName
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}
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if len(regardingGroupVersionKind.Kind) > 0 {
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field[prefix+".kind"] = regardingGroupVersionKind.Kind
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}
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regardingGroupVersion := regardingGroupVersionKind.GroupVersion()
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if !regardingGroupVersion.Empty() {
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field[prefix+".apiVersion"] = regardingGroupVersion.String()
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}
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if len(regardingUID) > 0 {
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field[prefix+".uid"] = string(regardingUID)
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}
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return field.AsSelector(), nil
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}
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