Forward requests to auth service within a Kubernetes microservices architecture

In your typical microservice architecture the main access point (and desirably the only one) to the inside of it should be the apigateway. So its job is to route the requests, as the first line of interaction between outside world and the inside, to the appropriate microservice based on different values that the request has. Some endpoints are private therefore they might require, let’s say, a specific token to be passed with the request (eg. JWT auhorization).