docker/charts/README.md

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Helm Charts for Apache PredictionIO
============================

## Overview

Helm Charts are packages of pre-configured Kubernetes resources.
Using charts, you can install and manage PredictionIO in the Kubernetes.

## Usage

### Install PredictionIO with PostgreSQL

To install PostgreSQL and PredictionIO, run `helm install` command:

```
helm install --name my-postgresql stable/postgresql -f postgresql.yaml
helm install --name my-pio ./predictionio -f predictionio_postgresql.yaml
```

`postgresql.yaml` and `predictionio_postgresql.yaml` are configuration files for charts.
To access Jupyter for PredictionIO, run `kubectl port-forward` and then open `http://localhost:8888/`.

```
export POD_NAME=$(kubectl get pods --namespace default -l "app.kubernetes.io/name=predictionio,app.kubernetes.io/instance=my-pio" -o jsonpath="{.items[0].metadata.name}")
kubectl port-forward $POD_NAME 8888:8888
```


### Install Spark Cluster

To install Spark cluster, run the following command:

```
helm install --name my-spark ./spark
```

To train a model, run `pio train` as below:

```
pio train -- --master spark://my-spark-master:7077
```