state

Documentation

Index

• type ChangeProcessor
• type ChangeProcessorConfig
• type ChangeProcessorImpl
  • func NewChangeProcessorImpl(cfg ChangeProcessorConfig) *ChangeProcessorImpl
  • func (c *ChangeProcessorImpl) CaptureDeleteChange(resourceType client.Object, nsname types.NamespacedName)
  • func (c *ChangeProcessorImpl) CaptureUpsertChange(obj client.Object)
  • func (c *ChangeProcessorImpl) GetLatestGraph() *graph.Graph
  • func (c *ChangeProcessorImpl) Process() (ChangeType, *graph.Graph)
• type ChangeType
• type Updater

Types

type ChangeProcessor

type ChangeProcessor interface {
	// CaptureUpsertChange captures an upsert change to a resource.
	// It panics if the resource is of unsupported type or if the passed Gateway is different from the one this
	// ChangeProcessor was created for.
	CaptureUpsertChange(obj client.Object)
	// CaptureDeleteChange captures a delete change to a resource.
	// The method panics if the resource is of unsupported type or if the passed Gateway is different from the one
	// this ChangeProcessor was created for.
	CaptureDeleteChange(resourceType client.Object, nsname types.NamespacedName)
	// Process produces a graph-like representation of GatewayAPI resources.
	// If no changes were captured, the changed return argument will be NoChange and graph will be empty.
	Process() (changeType ChangeType, graphCfg *graph.Graph)
	// GetLatestGraph returns the latest Graph.
	GetLatestGraph() *graph.Graph
}

ChangeProcessor processes the changes to resources and produces a graph-like representation of the Gateway configuration. It only supports one GatewayClass resource.

type ChangeProcessorConfig

type ChangeProcessorConfig struct {
	// Validators validate resources according to data-plane specific rules.
	Validators validation.Validators
	// EventRecorder records events for Kubernetes resources.
	EventRecorder record.EventRecorder
	// Scheme is the Kubernetes scheme.
	Scheme *runtime.Scheme
	// ProtectedPorts are the ports that may not be configured by a listener with a descriptive name of the ports.
	ProtectedPorts graph.ProtectedPorts
	// Logger is the logger for this Change Processor.
	Logger logr.Logger
	// GatewayCtlrName is the name of the Gateway controller.
	GatewayCtlrName string
	// GatewayClassName is the name of the GatewayClass resource.
	GatewayClassName string
}

ChangeProcessorConfig holds configuration parameters for ChangeProcessorImpl.

type ChangeProcessorImpl

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

ChangeProcessorImpl is an implementation of ChangeProcessor.

func NewChangeProcessorImpl

func NewChangeProcessorImpl(cfg ChangeProcessorConfig) *ChangeProcessorImpl

NewChangeProcessorImpl creates a new ChangeProcessorImpl for the Gateway resource with the configured namespace name.

func (*ChangeProcessorImpl) CaptureDeleteChange

func (c *ChangeProcessorImpl) CaptureDeleteChange(resourceType client.Object, nsname types.NamespacedName)

func (*ChangeProcessorImpl) CaptureUpsertChange

func (c *ChangeProcessorImpl) CaptureUpsertChange(obj client.Object)

func (*ChangeProcessorImpl) GetLatestGraph

func (c *ChangeProcessorImpl) GetLatestGraph() *graph.Graph

func (*ChangeProcessorImpl) Process

func (c *ChangeProcessorImpl) Process() (ChangeType, *graph.Graph)

type ChangeType

type ChangeType int

ChangeType is the type of change that occurred based on a k8s object event.

const (
	// NoChange means that nothing changed.
	NoChange ChangeType = iota
	// EndpointsOnlyChange means that only the endpoints changed.
	// If using NGINX Plus, this update can be done using the API without a reload.
	EndpointsOnlyChange
	// ClusterStateChange means that something other than endpoints changed. This requires an NGINX reload.
	ClusterStateChange
)

type Updater

type Updater interface {
	Upsert(obj client.Object)
	Delete(objType client.Object, nsname types.NamespacedName)
}

Updater updates the cluster state.