Ray client unable to connect to minikube cluster from outside

[Dmitri]

Ah, the issue is that the client server does not start by default in Ray 1.2.0, see this post:

[Cluster] [K8] Is the client.server automatically started in Ray 1.2.0 when running on K8?

The automatic server start feature was introduced after the Ray 1.2.0 release. To start the server on port 10001 with Ray 1.2.0, you can append the argument to the head’s Ray start command --ray-client-server-port 10001 : ray start --head --no-monitor --dashboard-host 0.0.0.0 --ray-client-server-port 10001