metrics

Documentation

Index

• Variables
• func WithControllerMetrics(i admission.Interface, name string) admission.Interface
• func WithMetrics(i admission.Interface, observer ObserverFunc, extraLabels ...string) admission.Interface
• func WithStepMetrics(i admission.Interface) admission.Interface
• type AdmissionMetrics
  • func (m *AdmissionMetrics) ObserveAdmissionController(ctx context.Context, elapsed time.Duration, rejected bool, ...)
  • func (m *AdmissionMetrics) ObserveAdmissionStep(ctx context.Context, elapsed time.Duration, rejected bool, ...)
  • func (m *AdmissionMetrics) ObserveMatchConditionEvalError(ctx context.Context, name, stepType string)
  • func (m *AdmissionMetrics) ObserveWebhook(ctx context.Context, name string, elapsed time.Duration, rejected bool, ...)
  • func (m *AdmissionMetrics) ObserveWebhookFailOpen(ctx context.Context, name, stepType string)
  • func (m *AdmissionMetrics) ObserveWebhookRejection(ctx context.Context, name, stepType, operation string, ...)
• type ObserverFunc
• type WebhookRejectionErrorType

Variables

var (

	// Metrics provides access to all admission metrics.
	Metrics = newAdmissionMetrics()
)

Functions

func WithControllerMetrics

func WithControllerMetrics(i admission.Interface, name string) admission.Interface

WithControllerMetrics is a decorator for named admission handlers.

func WithMetrics

func WithMetrics(i admission.Interface, observer ObserverFunc, extraLabels ...string) admission.Interface

WithMetrics is a decorator for admission handlers with a generic observer func.

func WithStepMetrics

func WithStepMetrics(i admission.Interface) admission.Interface

WithStepMetrics is a decorator for a whole admission phase, i.e. admit or validation.admission step.

Types

type AdmissionMetrics

type AdmissionMetrics struct {
	// contains filtered or unexported fields
}

AdmissionMetrics instruments admission with prometheus metrics.

func (*AdmissionMetrics) ObserveAdmissionController

func (m *AdmissionMetrics) ObserveAdmissionController(ctx context.Context, elapsed time.Duration, rejected bool, attr admission.Attributes, stepType string, extraLabels ...string)

ObserveAdmissionController records admission related metrics for a built-in admission controller, identified by it's plugin handler name.

func (*AdmissionMetrics) ObserveAdmissionStep

func (m *AdmissionMetrics) ObserveAdmissionStep(ctx context.Context, elapsed time.Duration, rejected bool, attr admission.Attributes, stepType string, extraLabels ...string)

ObserveAdmissionStep records admission related metrics for a admission step, identified by step type.

func (*AdmissionMetrics) ObserveMatchConditionEvalError

func (m *AdmissionMetrics) ObserveMatchConditionEvalError(ctx context.Context, name, stepType string)

ObserveMatchConditionEvalError records validating or mutating webhook that are not called due to match conditions

func (*AdmissionMetrics) ObserveWebhook

func (m *AdmissionMetrics) ObserveWebhook(ctx context.Context, name string, elapsed time.Duration, rejected bool, attr admission.Attributes, stepType string, code int)

ObserveWebhook records admission related metrics for a admission webhook.

func (*AdmissionMetrics) ObserveWebhookFailOpen

func (m *AdmissionMetrics) ObserveWebhookFailOpen(ctx context.Context, name, stepType string)

ObserveWebhookFailOpen records validating or mutating webhook that fail open.

func (*AdmissionMetrics) ObserveWebhookRejection

func (m *AdmissionMetrics) ObserveWebhookRejection(ctx context.Context, name, stepType, operation string, errorType WebhookRejectionErrorType, rejectionCode int)

ObserveWebhookRejection records admission related metrics for an admission webhook rejection.

type ObserverFunc

type ObserverFunc func(ctx context.Context, elapsed time.Duration, rejected bool, attr admission.Attributes, stepType string, extraLabels ...string)

ObserverFunc is a func that emits metrics.

type WebhookRejectionErrorType

type WebhookRejectionErrorType string

WebhookRejectionErrorType defines different error types that happen in a webhook rejection.

const (

	// WebhookRejectionCallingWebhookError identifies a calling webhook error which causes
	// a webhook admission to reject a request
	WebhookRejectionCallingWebhookError WebhookRejectionErrorType = "calling_webhook_error"
	// WebhookRejectionAPIServerInternalError identifies an apiserver internal error which
	// causes a webhook admission to reject a request
	WebhookRejectionAPIServerInternalError WebhookRejectionErrorType = "apiserver_internal_error"
	// WebhookRejectionNoError identifies a webhook properly rejected a request
	WebhookRejectionNoError WebhookRejectionErrorType = "no_error"
)