In its initial 1.0 release in March 2015, Spring Cloud was mainly a wrapper around the Netflix OSS tools, which are as follows:
- Netflix Eureka, a discovery server
- Netflix Ribbon, a client-side load balancer
- Netflix Zuul, an edge server
- Netflix Hystrix, a circuit breaker
The initial release of Spring Cloud also contained a configuration server and integration with Spring Security that provided OAuth 2.0 protected APIs. In May 2016, the Brixton release (V1.1) of Spring Cloud was made generally available. With the Brixton release, Spring Cloud got support for distributed tracing based on Spring Cloud Sleuth and Zipkin, which originated from Twitter. These initial Spring Cloud components could be used to implement the preceding design patterns. For more details, see https://spring.io/blog/2015/03/04/spring-cloud-1-0...
