func (cr *InMemoryContainerRepository) Delete(container linux_backend.Container) {
cr.mutex.Lock()
defer cr.mutex.Unlock()
delete(cr.store, container.Handle())
}
func (cr *InMemoryContainerRepository) Add(container linux_backend.Container) {
cr.mutex.Lock()
defer cr.mutex.Unlock()
cr.store[container.Handle()] = container
}