Container Service for Kubernetes:Access Ray Dashboard via kubectl port-forward

Prerequisites

Ensure that a Ray cluster is running in ACK:

• A Ray cluster is running in ACK.

Access the Ray Dashboard

1. Get the Service name for the Ray cluster head pod in your namespace:

   kubectl get svc -n ${RAY_CLUSTER_NS}

   Expected output:

   NAME                           TYPE        CLUSTER-IP        EXTERNAL-IP   PORT(S)                                         AGE
   myfirst-ray-cluster-head-svc   ClusterIP   192.XX.XX.188   <none>        10001/TCP,8265/TCP,8080/TCP,6379/TCP,8000/TCP   18m

   Note the Service name (for example, myfirst-ray-cluster-head-svc) for the next step.

2. Forward port 8265 to the Ray cluster head Service in a separate terminal — this blocks the shell:

   kubectl port-forward svc/myfirst-ray-cluster-head-svc --address 0.0.0.0 8265:8265 -n ${RAY_CLUSTER_NS}

   Expected output:

   Forwarding from 0.0.0.0:8265 -> 8265

3. Open http://127.0.0.1:8265/ in your browser. Ray Dashboard displays the cluster overview.

   

Next steps

• Submit a Ray job to run distributed tasks.

• Autoscale Elastic Compute Service (ECS) nodes with the Ray and ACK autoscalers.

• Autoscale Elastic Container Instance nodes with the Ray autoscaler.