generic

Documentation

Index

• func ConvertToGVK(obj runtime.Object, gvk schema.GroupVersionKind, o admission.ObjectInterfaces) (runtime.Object, error)
• func ConvertVersionedAttributes(attr *VersionedAttributes, gvk schema.GroupVersionKind, ...) error
• type Dispatcher
• type Source
• type VersionedAttributes
  • func NewVersionedAttributes(attr admission.Attributes, gvk schema.GroupVersionKind, ...) (*VersionedAttributes, error)
  • func (v *VersionedAttributes) GetObject() runtime.Object
• type Webhook
  • func NewWebhook(handler *admission.Handler, configFile io.Reader, sourceFactory sourceFactory, ...) (*Webhook, error)
  • func (a *Webhook) Dispatch(ctx context.Context, attr admission.Attributes, o admission.ObjectInterfaces) error
  • func (a *Webhook) SetAuthenticationInfoResolverWrapper(wrapper webhookutil.AuthenticationInfoResolverWrapper)
  • func (a *Webhook) SetExternalKubeClientSet(client clientset.Interface)
  • func (a *Webhook) SetExternalKubeInformerFactory(f informers.SharedInformerFactory)
  • func (a *Webhook) SetServiceResolver(sr webhookutil.ServiceResolver)
  • func (a *Webhook) ShouldCallHook(h webhook.WebhookAccessor, attr admission.Attributes, ...) (*WebhookInvocation, *apierrors.StatusError)
  • func (a *Webhook) ValidateInitialization() error
• type WebhookInvocation

Functions

func ConvertToGVK

func ConvertToGVK(obj runtime.Object, gvk schema.GroupVersionKind, o admission.ObjectInterfaces) (runtime.Object, error)

ConvertToGVK converts object to the desired gvk.

func ConvertVersionedAttributes

func ConvertVersionedAttributes(attr *VersionedAttributes, gvk schema.GroupVersionKind, o admission.ObjectInterfaces) error

ConvertVersionedAttributes converts VersionedObject and VersionedOldObject to the specified kind, if needed. If attr.VersionedKind already matches the requested kind, no conversion is performed. If conversion is required: * attr.VersionedObject is used as the source for the new object if Dirty=true (and is round-tripped through attr.Attributes.Object, clearing Dirty in the process) * attr.Attributes.Object is used as the source for the new object if Dirty=false * attr.Attributes.OldObject is used as the source for the old object

Types

type Dispatcher

type Dispatcher interface {
	// Dispatch a request to the webhooks. Dispatcher may choose not to
	// call a hook, either because the rules of the hook does not match, or
	// the namespaceSelector or the objectSelector of the hook does not
	// match. A non-nil error means the request is rejected.
	Dispatch(ctx context.Context, a admission.Attributes, o admission.ObjectInterfaces, hooks []webhook.WebhookAccessor) error
}

Dispatcher dispatches webhook call to a list of webhooks with admission attributes as argument.

type Source

type Source interface {
	Webhooks() []webhook.WebhookAccessor
	HasSynced() bool
}

Source can list dynamic webhook plugins.

type VersionedAttributes

type VersionedAttributes struct {
	// Attributes holds the original admission attributes
	admission.Attributes
	// VersionedOldObject holds Attributes.OldObject (if non-nil), converted to VersionedKind.
	// It must never be mutated.
	VersionedOldObject runtime.Object
	// VersionedObject holds Attributes.Object (if non-nil), converted to VersionedKind.
	// If mutated, Dirty must be set to true by the mutator.
	VersionedObject runtime.Object
	// VersionedKind holds the fully qualified kind
	VersionedKind schema.GroupVersionKind
	// Dirty indicates VersionedObject has been modified since being converted from Attributes.Object
	Dirty bool
}

VersionedAttributes is a wrapper around the original admission attributes, adding versioned variants of the object and old object.

func NewVersionedAttributes

func NewVersionedAttributes(attr admission.Attributes, gvk schema.GroupVersionKind, o admission.ObjectInterfaces) (*VersionedAttributes, error)

NewVersionedAttributes returns versioned attributes with the old and new object (if non-nil) converted to the requested kind

func (*VersionedAttributes) GetObject

func (v *VersionedAttributes) GetObject() runtime.Object

GetObject overrides the Attributes.GetObject()

type Webhook

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

Webhook is an abstract admission plugin with all the infrastructure to define Admit or Validate on-top.

func NewWebhook

func NewWebhook(handler *admission.Handler, configFile io.Reader, sourceFactory sourceFactory, dispatcherFactory dispatcherFactory) (*Webhook, error)

NewWebhook creates a new generic admission webhook.

func (*Webhook) Dispatch

func (a *Webhook) Dispatch(ctx context.Context, attr admission.Attributes, o admission.ObjectInterfaces) error

Dispatch is called by the downstream Validate or Admit methods.

func (*Webhook) SetAuthenticationInfoResolverWrapper

func (a *Webhook) SetAuthenticationInfoResolverWrapper(wrapper webhookutil.AuthenticationInfoResolverWrapper)

SetAuthenticationInfoResolverWrapper sets the AuthenticationInfoResolverWrapper. TODO find a better way wire this, but keep this pull small for now.

func (*Webhook) SetExternalKubeClientSet

func (a *Webhook) SetExternalKubeClientSet(client clientset.Interface)

SetExternalKubeClientSet implements the WantsExternalKubeInformerFactory interface. It sets external ClientSet for admission plugins that need it

func (*Webhook) SetExternalKubeInformerFactory

func (a *Webhook) SetExternalKubeInformerFactory(f informers.SharedInformerFactory)

SetExternalKubeInformerFactory implements the WantsExternalKubeInformerFactory interface.

func (*Webhook) SetServiceResolver

func (a *Webhook) SetServiceResolver(sr webhookutil.ServiceResolver)

SetServiceResolver sets a service resolver for the webhook admission plugin. Passing a nil resolver does not have an effect, instead a default one will be used.

func (*Webhook) ShouldCallHook

func (a *Webhook) ShouldCallHook(h webhook.WebhookAccessor, attr admission.Attributes, o admission.ObjectInterfaces) (*WebhookInvocation, *apierrors.StatusError)

ShouldCallHook returns invocation details if the webhook should be called, nil if the webhook should not be called, or an error if an error was encountered during evaluation.

func (*Webhook) ValidateInitialization

func (a *Webhook) ValidateInitialization() error

ValidateInitialization implements the InitializationValidator interface.

type WebhookInvocation

type WebhookInvocation struct {
	Webhook     webhook.WebhookAccessor
	Resource    schema.GroupVersionResource
	Subresource string
	Kind        schema.GroupVersionKind
}

WebhookInvocation describes how to call a webhook, including the resource and subresource the webhook registered for, and the kind that should be sent to the webhook.