Add Update/List endpoints to runtime

runtime/default.go

@@ -252,6 +252,28 @@ func (r *runtime) Delete(s *Service) error {
 	return nil
 }
 
+func (r *runtime) Update(s *Service) error {
+	// delete the service
+	if err := r.Delete(s); err != nil {
+		return err
+	}
+
+	// create new service
+	return r.Create(s)
+}
+
+func (r *runtime) List() ([]*Service, error) {
+	var services []*Service
+	r.RLock()
+	defer r.RUnlock()
+
+	for _, service := range r.services {
+		services = append(services, service.Service)
+	}
+
+	return services, nil
+}
+
 func (r *runtime) Start() error {
 	r.Lock()
 	defer r.Unlock()

runtime/runtime.go

@@ -7,6 +7,10 @@ type Runtime interface {
 	Create(*Service, ...CreateOption) error
 	// Remove a service
 	Delete(*Service) error
+	// Update the service in place
+	Update(*Service) error
+	// List the managed services
+	List() ([]*Service, error)
 	// starts the runtime
 	Start() error
 	// Shutdown the runtime
@@ -36,6 +40,14 @@ func Delete(s *Service) error {
 	return DefaultRuntime.Delete(s)
 }
 
+func Update(s *Service) error {
+	return DefaultRuntime.Update(s)
+}
+
+func List() ([]*Service, error) {
+	return DefaultRuntime.List()
+}
+
 func Start() error {
 	return DefaultRuntime.Start()
 }