limitranger

package
Version: v1.14.0 Latest Latest
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Published: Mar 21, 2019 License: Apache-2.0 Imports: 19 Imported by: 0

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Index

Constants

View Source
const (

	// PluginName indicates name of admission plugin.
	PluginName = "LimitRanger"
)

Variables

This section is empty.

Functions

func PersistentVolumeClaimValidateLimitFunc added in v1.9.0

func PersistentVolumeClaimValidateLimitFunc(limitRange *corev1.LimitRange, pvc *api.PersistentVolumeClaim) error

PersistentVolumeClaimValidateLimitFunc 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 PodMutateLimitFunc added in v1.9.0

func PodMutateLimitFunc(limitRange *corev1.LimitRange, pod *api.Pod) error

PodMutateLimitFunc sets 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 PodValidateLimitFunc added in v1.9.0

func PodValidateLimitFunc(limitRange *corev1.LimitRange, pod *api.Pod) error

PodValidateLimitFunc enforces resource requirements enumerated by the pod against the specified 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) MutateLimit added in v1.9.0

func (d *DefaultLimitRangerActions) MutateLimit(limitRange *corev1.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 *corev1.LimitRange) bool

SupportsLimit always returns true.

func (*DefaultLimitRangerActions) ValidateLimit added in v1.9.0

func (d *DefaultLimitRangerActions) ValidateLimit(limitRange *corev1.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

type LimitRanger added in v1.9.0

type LimitRanger struct {
	*admission.Handler
	// contains filtered or unexported fields
}

LimitRanger enforces usage limits on a per resource basis in the namespace

func NewLimitRanger

func NewLimitRanger(actions LimitRangerActions) (*LimitRanger, error)

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

func (*LimitRanger) Admit added in v1.9.0

Admit admits resources into cluster that do not violate any defined LimitRange in the namespace

func (*LimitRanger) GetLimitRanges added in v1.9.0

func (l *LimitRanger) GetLimitRanges(a admission.Attributes) ([]*corev1.LimitRange, error)

func (*LimitRanger) SetExternalKubeClientSet added in v1.13.0

func (a *LimitRanger) SetExternalKubeClientSet(client kubernetes.Interface)

func (*LimitRanger) SetExternalKubeInformerFactory added in v1.13.0

func (l *LimitRanger) SetExternalKubeInformerFactory(f informers.SharedInformerFactory)

func (*LimitRanger) Validate added in v1.9.0

Validate admits resources into cluster that do not violate any defined LimitRange in the namespace

func (*LimitRanger) ValidateInitialization added in v1.9.0

func (l *LimitRanger) ValidateInitialization() error

type LimitRangerActions added in v1.3.0

type LimitRangerActions interface {
	// MutateLimit is a pluggable function to set limits on the object.
	MutateLimit(limitRange *corev1.LimitRange, kind string, obj runtime.Object) error
	// ValidateLimits is a pluggable function to enforce limits on the object.
	ValidateLimit(limitRange *corev1.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 *corev1.LimitRange) bool
}

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