Providing and consuming a public REST API

In this section, we will build a whole new service in Python (API gateway) to demonstrate that Kubernetes is really language-agnostic. Then, we will add user authentication via OAuth2 and expose the API gateway service externally.

Building a Python-based API gateway service

The API gateway service is designed to receive all requests from outside the cluster and route them to the proper services. Here is the directory's structure:

$ tree
 .
 ├── Dockerfile
 ├── README.md
 ├── api_gateway_service
 │   ├── __init__.py
 │   ├── api.py
 │   ├──...