Keycloak

Overview

Keycloak is an OAuth 2.0 compliant Identity Access Management (IAM) system used to manage the access to Rancher for cluster controls.

Run the install script to install the keycloak as below:
```
./install.sh <iam.host.name>
```
eg. ./install.sh iam.xyz.net
keycloak_client.json: Used to create SAML client on Keycloak for Rancher integration.