[Docs][Kuberay] Create an example doc for Modin (ray-project#46345)

Signed-off-by: Chi-Sheng Liu <[email protected]>

doc/source/cluster/kubernetes/examples.md

@@ -14,6 +14,7 @@ examples/rayjob-batch-inference-example
 examples/rayjob-kueue-priority-scheduling
 examples/rayjob-kueue-gang-scheduling
 examples/distributed-checkpointing-with-gcsfuse
+examples/modin-example
 ```
 
 
@@ -28,3 +29,4 @@ This section presents example Ray workloads to try out on your Kubernetes cluste
 - {ref}`kuberay-kueue-priority-scheduling-example`
 - {ref}`kuberay-kueue-gang-scheduling-example`
 - {ref}`kuberay-distributed-checkpointing-gcsefuse`
+- {ref}`kuberay-modin-example`

doc/source/cluster/kubernetes/examples/modin-example.md

@@ -0,0 +1,37 @@
+(kuberay-modin-example)=
+
+# Use Modin with Ray on Kubernetes
+
+This example runs a modified version of the [Using Modin with the NYC Taxi Dataset](https://github.com/modin-project/modin/blob/4e7afa7ea59c7a160ed504f39652ff23b4d49be3/examples/jupyter/Modin_Taxi.ipynb) example from the Modin official repository using RayJob on Kubernetes.
+
+## Step 1: Install KubeRay operator
+
+Follow steps 1 and 2 from [RayCluster QuickStart](kuberay-raycluster-quickstart) guide to install KubeRay operator.
+
+## Step 2: Run the Modin example with RayJob
+
+Create a RayJob that runs the Modin example using the following command:
+
+```sh
+kubectl apply -f https://raw.githubusercontent.com/ray-project/kuberay/master/ray-operator/config/samples/ray-job.modin.yaml
+```
+
+## Step 3: Check the output
+
+Run the following command to check the output:
+
+```sh
+kubectl logs -l=job-name=rayjob-sample
+
+# [Example output]
+# 2024-07-05 10:01:00,945 INFO worker.py:1446 -- Using address 10.244.0.4:6379 set in the environment variable RAY_ADDRESS
+# 2024-07-05 10:01:00,945 INFO worker.py:1586 -- Connecting to existing Ray cluster at address: 10.244.0.4:6379...
+# 2024-07-05 10:01:00,948 INFO worker.py:1762 -- Connected to Ray cluster. View the dashboard at 10.244.0.4:8265
+# Modin Engine: Ray
+# FutureWarning: DataFrame.applymap has been deprecated. Use DataFrame.map instead.
+# Time to compute isnull: 0.065887747972738
+# Time to compute rounded_trip_distance: 0.34410698304418474
+# 2024-07-05 10:01:23,069 SUCC cli.py:60 -- -----------------------------------
+# 2024-07-05 10:01:23,069 SUCC cli.py:61 -- Job 'rayjob-sample-zt8wj' succeeded
+# 2024-07-05 10:01:23,069 SUCC cli.py:62 -- -----------------------------------
+```