Running a Redis Cluster in Circle

I’ve got an Elasticache Redis Cluster in AWS I would like to simulate in my integration tests on Circle. Running a single Redis box is easy enough, but I have to connect to the Elasticache system using new Cluster (I’m using io-redis). When I try to connect to a single Redis box with that, I get errors like:

ioredis:cluster Got error Error: None of startup nodes is available

Does anyone know how to either:

  • run redis in cluster mode in Circle
  • connect to a single redis box using io-redis Cluster and not get the errors above?