Add OAuth 2 mode to restful gateway #42
Description
Implement next OAuth 2 modes for quarkus gateway:
- Token forward (default): the http request carries the Bearer token in the AUTHORIZATION header and it is passed to LH grpc server. This mode depends on LH for validating and authorizing the token.
- RBAC (Role-Based Access Control): the http request carries the Bearer token in the AUTHORIZATION header and it is validated at the gateway layer, it is not passed to LH grpc server. This mode depends on the gateway configurations and the roles configured on the IdP server.
- Improve local environment to run keycloak.