agent/engine/dockerstate/docker_task_engine_state.go
func (state *DockerTaskEngineState) ContainerByID(id string) (*apicontainer.DockerContainer, bool) {
	state.lock.RLock()
	defer state.lock.RUnlock()

	c, ok := state.idToContainer[id]
	return c, ok
}
func (state *DockerTaskEngineState) ContainerByID(id string) (*apicontainer.DockerContainer, bool) {
	state.lock.RLock()
	defer state.lock.RUnlock()

	c, ok := state.idToContainer[id]
	return c, ok
}
// ContainerByID returns an apicontainer.DockerContainer for a given container ID