limitranger

package
v1.7.4 Latest Latest
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Published: Aug 17, 2017 License: Apache-2.0 Imports: 18 Imported by: 0

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Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func NewLimitRanger

func NewLimitRanger(actions LimitRangerActions) (admission.Interface, error)

NewLimitRanger returns an object that enforces limits based on the supplied limit function

func PersistentVolumeClaimLimitFunc added in v1.5.0

func PersistentVolumeClaimLimitFunc(limitRange *api.LimitRange, pvc *api.PersistentVolumeClaim) error

PersistentVolumeClaimLimitFunc enforces storage limits for PVCs. Users request storage via pvc.Spec.Resources.Requests. Min/Max is enforced by an admin with LimitRange. Claims will not be modified with default values because storage is a required part of pvc.Spec. All storage enforced values *only* apply to pvc.Spec.Resources.Requests.

func PodLimitFunc

func PodLimitFunc(limitRange *api.LimitRange, pod *api.Pod) error

PodLimitFunc enforces resource requirements enumerated by the pod against the specified LimitRange. The pod may be modified to apply default resource requirements if not specified, and enumerated on the LimitRange

func Register added in v1.7.0

func Register(plugins *admission.Plugins)

Register registers a plugin

Types

type DefaultLimitRangerActions added in v1.3.0

type DefaultLimitRangerActions struct{}

DefaultLimitRangerActions is the default implementation of LimitRangerActions.

func (*DefaultLimitRangerActions) Limit added in v1.3.0

func (d *DefaultLimitRangerActions) Limit(limitRange *api.LimitRange, resourceName string, obj runtime.Object) error

Limit enforces resource requirements of incoming resources against enumerated constraints on the LimitRange. It may modify the incoming object to apply default resource requirements if not specified, and enumerated on the LimitRange

func (*DefaultLimitRangerActions) SupportsAttributes added in v1.3.0

func (d *DefaultLimitRangerActions) SupportsAttributes(a admission.Attributes) bool

SupportsAttributes ignores all calls that do not deal with pod resources or storage requests (PVCs). Also ignores any call that has a subresource defined.

func (*DefaultLimitRangerActions) SupportsLimit added in v1.3.0

func (d *DefaultLimitRangerActions) SupportsLimit(limitRange *api.LimitRange) bool

SupportsLimit always returns true.

type LimitRangerActions added in v1.3.0

type LimitRangerActions interface {
	// Limit is a pluggable function to enforce limits on the object.
	Limit(limitRange *api.LimitRange, kind string, obj runtime.Object) error
	// SupportsAttributes is a pluggable function to allow overridding what resources the limitranger
	// supports.
	SupportsAttributes(attr admission.Attributes) bool
	// SupportsLimit is a pluggable function to allow ignoring limits that should not be applied
	// for any reason.
	SupportsLimit(limitRange *api.LimitRange) bool
}

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