Documentation
¶
Overview ¶
Package predicate defines Predicates used by Controllers to filter Events before they are provided to EventHandlers.
Index ¶
Examples ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type Funcs ¶
type Funcs struct {
// Create returns true if the Create event should be processed
CreateFunc func(event.CreateEvent) bool
// Delete returns true if the Delete event should be processed
DeleteFunc func(event.DeleteEvent) bool
// Update returns true if the Update event should be processed
UpdateFunc func(event.UpdateEvent) bool
// Generic returns true if the Generic event should be processed
GenericFunc func(event.GenericEvent) bool
}
Funcs is a function that implements Predicate.
Example ¶
This example creates a new Predicate to drop Update Events where the Generation has not changed.
package main
import (
"sigs.k8s.io/controller-runtime/pkg/event"
"sigs.k8s.io/controller-runtime/pkg/predicate"
)
var p predicate.Predicate
// This example creates a new Predicate to drop Update Events where the Generation has not changed.
func main() {
p = predicate.Funcs{
UpdateFunc: func(e event.UpdateEvent) bool {
return e.MetaOld.GetGeneration() != e.MetaNew.GetGeneration()
},
}
}
type Predicate ¶
type Predicate interface {
// Create returns true if the Create event should be processed
Create(event.CreateEvent) bool
// Delete returns true if the Delete event should be processed
Delete(event.DeleteEvent) bool
// Update returns true if the Update event should be processed
Update(event.UpdateEvent) bool
// Generic returns true if the Generic event should be processed
Generic(event.GenericEvent) bool
}
Predicate filters events before enqueuing the keys.
type ResourceVersionChangedPredicate ¶
type ResourceVersionChangedPredicate struct {
Funcs
}
ResourceVersionChangedPredicate implements a default update predicate function on resource version change
func (ResourceVersionChangedPredicate) Update ¶
func (ResourceVersionChangedPredicate) Update(e event.UpdateEvent) bool
Update implements default UpdateEvent filter for validating resource version change
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