Create a Helm Chart for the project

[fishkerez]

We at Cisco are intended to use modelmesh-serving for internal purposes, as part of an ML platform, and I noticed that there isn't any helm charts for the project.

Currently, the project uses Kustomize to deploy all the resources to k8s. This includes an install script with some flags, that editing the Kustomiztation files in place.

It will be nice to have an helm installation option, that will manage all the different configurations using values.yaml and helm templates.
This will make the deployment more easy to maintain, and will align it with industry best practices.

I already created the helm charts, and I would like to contribute it back to the project.

What my helm charts supports currently (from the install script):

• quickstart option (install etcd and minio)
• namespace scoped mode
• cert manager installation
• self signed installation (requires creating the secret before)
• dev mode logging

What it is not support:

• creating the self signed secret
• enable modelmesh for user namespaces (--user-namespaces)

Would love to hear any thoughts.