A service mesh is a configurable infrastructure layer for a microservices application. It provides microservices governance by adding necessary visibility and security controls. When you have dozens of services, the service mesh helps to discover, authorize and track the different service instances.
NGINX tutorials are very popular and can be found all over the Web. However, they can go out of date as software changes. So, we've created "official" versions of some of the most-used procedures, and we'll keep these videos up-to-date. Say hello on Twitter (@nginx) or Facebook (https://www.facebook.com/nginxinc/) and let us know if you have any suggestions for future topics.