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023460f5a8
The event Object is created from the referenced Object name, however, there is no guarantee that the name from the referenced Object will be a valid Event Name. For those Objects with name not valid for an Event, generate a new valid name using an UUID. Kubernetes-commit: ee36b817df06f84ce1a48ef4d65ed559c3775404
58 lines
1.8 KiB
Go
58 lines
1.8 KiB
Go
/*
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Copyright 2019 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 util
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import (
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"fmt"
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"net/http"
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"github.com/google/uuid"
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v1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/api/errors"
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apimachineryvalidation "k8s.io/apimachinery/pkg/api/validation"
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)
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// ValidateEventType checks that eventtype is an expected type of event
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func ValidateEventType(eventtype string) bool {
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switch eventtype {
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case v1.EventTypeNormal, v1.EventTypeWarning:
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return true
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}
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return false
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}
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// IsKeyNotFoundError is utility function that checks if an error is not found error
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func IsKeyNotFoundError(err error) bool {
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statusErr, _ := err.(*errors.StatusError)
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return statusErr != nil && statusErr.Status().Code == http.StatusNotFound
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}
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// GenerateEventName generates a valid Event name from the referenced name and the passed UNIX timestamp.
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// The referenced Object name may not be a valid name for Events and cause the Event to fail
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// to be created, so we need to generate a new one in that case.
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// Ref: https://issues.k8s.io/127594
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func GenerateEventName(refName string, unixNano int64) string {
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name := fmt.Sprintf("%s.%x", refName, unixNano)
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if errs := apimachineryvalidation.NameIsDNSSubdomain(name, false); len(errs) > 0 {
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// Using an uuid guarantees uniqueness and correctness
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name = uuid.New().String()
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}
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return name
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}
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