This version is still in development and is not considered stable yet. For the latest stable version, please use Spring Cloud Kubernetes 3.2.0!

Kubernetes native service discovery

Kubernetes itself is capable of (server side) service discovery (see: kubernetes.io/docs/concepts/services-networking/service/#discovering-services). Using native kubernetes service discovery ensures compatibility with additional tooling, such as Istio (istio.io), a service mesh that is capable of load balancing, circuit breaker, failover, and much more.

The caller service then need only refer to names resolvable in a particular Kubernetes cluster. A simple implementation might use a spring RestTemplate that refers to a fully qualified domain name (FQDN), such as {service-name}.{namespace}.svc.{cluster}.local:{service-port}.

Additionally, you can use Hystrix for:

  • Circuit breaker implementation on the caller side, by annotating the spring boot application class with @EnableCircuitBreaker

  • Fallback functionality, by annotating the respective method with @HystrixCommand(fallbackMethod=