10. LoadBalancer for Kubernetes

This project includes Spring Cloud Load Balancer for load balancing based on Kubernetes Endpoints and provides implementation of load balancer based on Kubernetes Service. To include it to your project add the following dependency.spring-doc.cn

Fabric8 Implementationspring-doc.cn

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-kubernetes-fabric8-loadbalancer</artifactId>
</dependency>

Kubernetes Java Client Implementationspring-doc.cn

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-kubernetes-client-loadbalancer</artifactId>
</dependency>

To enable load balancing based on Kubernetes Service name use the following property. Then load balancer would try to call application using address, for example service-a.default.svc.cluster.localspring-doc.cn

spring.cloud.kubernetes.loadbalancer.mode=SERVICE

To enabled load balancing across all namespaces use the following property. Property from spring-cloud-kubernetes-discovery module is respected.spring-doc.cn

spring.cloud.kubernetes.discovery.all-namespaces=true

If a service needs to be accessed over HTTPS you need to add a label or annotation to your service definition with the name secured and the value true and the load balancer will then use HTTPS to make requests to the service.spring-doc.cn