# Feast Java Helm Charts (alpha)

This repo contains Helm charts for Feast Java components that are being installed on Kubernetes:
* Feast (root chart): The complete Helm chart containing all Feast components and dependencies. Most users will use this chart, but can selectively enable/disable subcharts using the values.yaml file.
    * [Feature Server](charts/feature-server): High performant JVM-based implementation of feature server. 
    * [Transformation Service](charts/transformation-service): Transformation server for calculating on-demand features
    * Redis: (Optional) One of possible options for an online store used by Feature Server
    
## Chart: Feast

{{ template "chart.description" . }} Current chart version is `{{ template "chart.version" . }}`

## Installation

Charts are published to `https://feast-helm-charts.storage.googleapis.com`. Please note that this URL is different from the URL we previously used (`feast-charts`)

Run the following commands to add the repository

```
helm repo add feast-charts https://feast-helm-charts.storage.googleapis.com
helm repo update
```

Install Feast
```
helm install feast-release feast-charts/feast
```

## Customize your installation

This Feast chart comes with a [values.yaml](values.yaml) that allows for configuration and customization of all sub-charts.

In order to modify the default configuration of Feature Server, please use the `application-override.yaml` key in the `values.yaml` file in this chart. A code snippet example
```
feature-server:
    application-override.yaml:
        enabled: true
        feast:
            active_store: online
            stores:
            - name: online
              type: REDIS
              config:
                host: localhost
                port: 6379
            entityKeySerializationVersion: 3

global:
  registry:
    path: gs://[YOUR GCS BUCKET]/demo-repo/registry.db
    cache_ttl_seconds: 60
  project: feast_java_demo

```

For the default configuration, please see the [Feature Server Configuration](https://github.com/feast-dev/feast/blob/master/java/serving/src/main/resources/application.yml).

For more details, please see: https://docs.feast.dev/how-to-guides/running-feast-in-production

## Example
See [here](https://github.com/feast-dev/feast/tree/master/examples/java-demo) for a sample tutorial on testing this helm chart with a demo feature repository and a local Redis instance.


{{ template "chart.requirementsSection" . }}

{{ template "chart.valuesSection" . }}