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Add fieldSelector builder function to events.
Signed-off-by: cndoit18 <cndoit18@outlook.com> Kubernetes-commit: 678e10f990ec187052a5a984e6ab180c13a7365e
This commit is contained in:
cndoit18
Kubernetes Publisher
parent
3cca9d72c1
commit
39e54e70d0
64
tools/events/helper.go
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64
tools/events/helper.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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151
tools/events/helper_test.go
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151
tools/events/helper_test.go
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@ -0,0 +1,151 @@
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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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"testing"
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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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func TestGetFieldSelector(t *testing.T) {
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tests := []struct {
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desc string
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eventsGroupVersion schema.GroupVersion
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regardingName string
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regardingGroupVersionKind schema.GroupVersionKind
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regardingUID types.UID
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expected fields.Set
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expectedErr bool
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}{
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{
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desc: "events.k8s.io/v1beta1 event with empty parameters",
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eventsGroupVersion: eventsv1beta1.SchemeGroupVersion,
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regardingName: "",
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regardingGroupVersionKind: schema.GroupVersionKind{},
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regardingUID: "",
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expected: fields.Set{},
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expectedErr: false,
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},
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{
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desc: "events.k8s.io/v1beta1 event with non-empty parameters",
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eventsGroupVersion: eventsv1beta1.SchemeGroupVersion,
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regardingName: "test-deployment",
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regardingGroupVersionKind: schema.GroupVersionKind{
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Kind: "Deployment",
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Group: "apps",
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Version: "v1",
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},
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regardingUID: "2c55cad7-ee4e-11e9-abe1-525400e7bc6b",
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expected: fields.Set{
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"regarding.name": "test-deployment",
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"regarding.kind": "Deployment",
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"regarding.apiVersion": "apps/v1",
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"regarding.uid": "2c55cad7-ee4e-11e9-abe1-525400e7bc6b",
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},
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expectedErr: false,
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},
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{
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desc: "events.k8s.io/v1 event with empty parameters",
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eventsGroupVersion: eventsv1.SchemeGroupVersion,
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regardingName: "",
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regardingGroupVersionKind: schema.GroupVersionKind{},
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regardingUID: "",
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expected: fields.Set{},
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expectedErr: false,
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},
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{
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desc: "events.k8s.io/v1 event with non-empty parameters",
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eventsGroupVersion: eventsv1.SchemeGroupVersion,
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regardingName: "test-deployment",
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regardingGroupVersionKind: schema.GroupVersionKind{
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Kind: "Deployment",
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Group: "apps",
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Version: "v1",
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},
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regardingUID: "2c55cad7-ee4e-11e9-abe1-525400e7bc6b",
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expected: fields.Set{
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"regarding.name": "test-deployment",
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"regarding.kind": "Deployment",
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"regarding.apiVersion": "apps/v1",
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"regarding.uid": "2c55cad7-ee4e-11e9-abe1-525400e7bc6b",
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},
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expectedErr: false,
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},
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{
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desc: "v1 event with non-empty parameters",
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eventsGroupVersion: corev1.SchemeGroupVersion,
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regardingName: "",
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regardingGroupVersionKind: schema.GroupVersionKind{},
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regardingUID: "",
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expected: fields.Set{},
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expectedErr: false,
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},
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{
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desc: "v1 event with non-empty parameters",
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eventsGroupVersion: corev1.SchemeGroupVersion,
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regardingName: "test-deployment",
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regardingGroupVersionKind: schema.GroupVersionKind{
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Kind: "Deployment",
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Group: "apps",
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Version: "v1",
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},
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regardingUID: "2c55cad7-ee4e-11e9-abe1-525400e7bc6b",
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expected: fields.Set{
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"involvedObject.name": "test-deployment",
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"involvedObject.kind": "Deployment",
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"involvedObject.apiVersion": "apps/v1",
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"involvedObject.uid": "2c55cad7-ee4e-11e9-abe1-525400e7bc6b",
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},
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expectedErr: false,
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},
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{
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desc: "unknown group version",
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eventsGroupVersion: schema.GroupVersion{Group: corev1.GroupName, Version: "v1alpha1"},
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regardingName: "test-deployment",
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regardingGroupVersionKind: schema.GroupVersionKind{
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Kind: "Deployment",
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Group: "apps",
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Version: "v1",
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},
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regardingUID: "2c55cad7-ee4e-11e9-abe1-525400e7bc6b",
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expected: nil,
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expectedErr: true,
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},
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}
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for _, test := range tests {
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result, err := GetFieldSelector(test.eventsGroupVersion, test.regardingGroupVersionKind, test.regardingName, test.regardingUID)
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if !test.expectedErr && err != nil {
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t.Errorf("Unable to get field selector with %v", err)
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}
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if test.expectedErr && err == nil {
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t.Errorf("Expect error but got nil")
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}
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if test.expected == nil && result != nil {
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t.Errorf("Test %s expected <nil>, but got %v", test.desc, result)
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}
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if result != nil && !result.Matches(test.expected) {
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t.Errorf("Test %s expected %v, but got %v", test.desc, test.expected.AsSelector(), result)
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}
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}
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}
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