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114 lines
4.5 KiB
Go
114 lines
4.5 KiB
Go
// Package object holds functions that convert the objects from the k8s API in
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// to a more memory efficient structures.
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//
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// Adding new fields to any of the structures defined in pod.go, endpoint.go
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// and service.go should not be done lightly as this increases the memory use
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// and will leads to OOMs in the k8s scale test.
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//
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// We can do some optimizations here as well. We store IP addresses as strings,
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// this might be moved to uint32 (for v4) for instance, but then we need to
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// convert those again.
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//
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// Also the msg.Service use in this plugin may be deprecated at some point, as
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// we don't use most of those features anyway and would free us from the *etcd*
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// dependency, where msg.Service is defined. And should save some mem/cpu as we
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// convert to and from msg.Services.
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package object
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import (
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v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/client-go/tools/cache"
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)
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// ToFunc converts one v1.Object to another v1.Object.
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type ToFunc func(v1.Object) (v1.Object, error)
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// ProcessorBuilder returns function to process cache events.
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type ProcessorBuilder func(cache.Indexer, cache.ResourceEventHandler) cache.ProcessFunc
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// Empty is an empty struct.
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type Empty struct{}
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// GetObjectKind implements the ObjectKind interface as a noop.
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func (e *Empty) GetObjectKind() schema.ObjectKind { return schema.EmptyObjectKind }
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// GetGenerateName implements the metav1.Object interface.
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func (e *Empty) GetGenerateName() string { return "" }
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// SetGenerateName implements the metav1.Object interface.
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func (e *Empty) SetGenerateName(name string) {}
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// GetUID implements the metav1.Object interface.
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func (e *Empty) GetUID() types.UID { return "" }
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// SetUID implements the metav1.Object interface.
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func (e *Empty) SetUID(uid types.UID) {}
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// GetGeneration implements the metav1.Object interface.
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func (e *Empty) GetGeneration() int64 { return 0 }
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// SetGeneration implements the metav1.Object interface.
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func (e *Empty) SetGeneration(generation int64) {}
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// GetSelfLink implements the metav1.Object interface.
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func (e *Empty) GetSelfLink() string { return "" }
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// SetSelfLink implements the metav1.Object interface.
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func (e *Empty) SetSelfLink(selfLink string) {}
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// GetCreationTimestamp implements the metav1.Object interface.
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func (e *Empty) GetCreationTimestamp() v1.Time { return v1.Time{} }
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// SetCreationTimestamp implements the metav1.Object interface.
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func (e *Empty) SetCreationTimestamp(timestamp v1.Time) {}
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// GetDeletionTimestamp implements the metav1.Object interface.
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func (e *Empty) GetDeletionTimestamp() *v1.Time { return &v1.Time{} }
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// SetDeletionTimestamp implements the metav1.Object interface.
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func (e *Empty) SetDeletionTimestamp(timestamp *v1.Time) {}
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// GetDeletionGracePeriodSeconds implements the metav1.Object interface.
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func (e *Empty) GetDeletionGracePeriodSeconds() *int64 { return nil }
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// SetDeletionGracePeriodSeconds implements the metav1.Object interface.
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func (e *Empty) SetDeletionGracePeriodSeconds(*int64) {}
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// GetLabels implements the metav1.Object interface.
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func (e *Empty) GetLabels() map[string]string { return nil }
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// SetLabels implements the metav1.Object interface.
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func (e *Empty) SetLabels(labels map[string]string) {}
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// GetAnnotations implements the metav1.Object interface.
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func (e *Empty) GetAnnotations() map[string]string { return nil }
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// SetAnnotations implements the metav1.Object interface.
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func (e *Empty) SetAnnotations(annotations map[string]string) {}
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// GetFinalizers implements the metav1.Object interface.
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func (e *Empty) GetFinalizers() []string { return nil }
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// SetFinalizers implements the metav1.Object interface.
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func (e *Empty) SetFinalizers(finalizers []string) {}
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// GetOwnerReferences implements the metav1.Object interface.
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func (e *Empty) GetOwnerReferences() []v1.OwnerReference { return nil }
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// SetOwnerReferences implements the metav1.Object interface.
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func (e *Empty) SetOwnerReferences([]v1.OwnerReference) {}
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// GetZZZ_DeprecatedClusterName implements the metav1.Object interface.
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func (e *Empty) GetZZZ_DeprecatedClusterName() string { return "" }
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// SetZZZ_DeprecatedClusterName implements the metav1.Object interface.
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func (e *Empty) SetZZZ_DeprecatedClusterName(clusterName string) {}
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// GetManagedFields implements the metav1.Object interface.
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func (e *Empty) GetManagedFields() []v1.ManagedFieldsEntry { return nil }
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// SetManagedFields implements the metav1.Object interface.
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func (e *Empty) SetManagedFields(managedFields []v1.ManagedFieldsEntry) {}
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