Netflix was one of the early adopters of microservice-based systems. They were the first to successfully implement microservice architecture on a large scale and make it popular. They also helped increase its popularity and contributed immensely to microservices by open sourcing most of their microservice tools with the Netflix Open Source Software (OSS) center.

According to the Netflix blog, when Netflix was developing their platform, they used Apache Cassandra for data storage, which is an open source tool from Apache. They started contributing to Cassandra with fixes and optimization extensions. This led to Netflix seeing the benefits of releasing Netflix projects with the name OSS Center.

Spring took the opportunity to integrate many Netflix OSS projects, such as Zuul, Ribbon, Hystrix, Eureka Server, and Turbine, into Spring Cloud Netflix. This is one of the reasons Spring Cloud provides a ready-made platform for developing production-ready microservices. Now, let's take a look at a few important Netflix tools and how they fit into microservice architecture: