applicationscaler

Documentation

Index

• func Register(registry facade.FacadeRegistry)
• type Backend
• type Facade
  • func NewFacade(backend Backend, res facade.Resources, auth facade.Authorizer) (*Facade, error)
  • func (facade *Facade) Rescale(ctx context.Context, args params.Entities) params.ErrorResults
  • func (facade *Facade) Watch(ctx context.Context) (params.StringsWatchResult, error)

Functions

func Register

func Register(registry facade.FacadeRegistry)

Register is called to expose a package of facades onto a given registry.

Types

type Backend

type Backend interface {

	// WatchScaledServices returns a watcher that sends service ids
	// that might not have enough units.
	WatchScaledServices() state.StringsWatcher

	// RescaleService ensures that the named service has at least its
	// configured minimum unit count.
	RescaleService(name string) error
}

Backend exposes functionality required by Facade.

type Facade

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

Facade allows model-manager clients to watch and rescale services.

func NewFacade

func NewFacade(backend Backend, res facade.Resources, auth facade.Authorizer) (*Facade, error)

NewFacade creates a new authorized Facade.

func (*Facade) Rescale

func (facade *Facade) Rescale(ctx context.Context, args params.Entities) params.ErrorResults

Rescale causes any supplied services to be scaled up to their minimum size.

func (*Facade) Watch

func (facade *Facade) Watch(ctx context.Context) (params.StringsWatchResult, error)

Watch returns a watcher that sends the names of services whose unit count may be below their configured minimum.