kubernetes - 如何从Kubernetes Java客户端连接到Istio API？

Question

Kubernetes Java客户端具有sdk函数来创建部署，服务和许多其他核心kubernetes函数。如何从kubernetes Java客户端访问自定义资源，例如istio的服务条目，目标规则，虚拟服务等资源？

Answer 1

要连接到Istio，可以使用项目 istio-java-api 。该项目使用与Fabric8的kubernetes模型相同的方法。
以下示例显示了如何构建和创建VirtualService:

import me.snowdrop.istio.api.networking.v1alpha3.ExactMatchType;
import me.snowdrop.istio.api.networking.v1alpha3.VirtualService;
import me.snowdrop.istio.api.networking.v1alpha3.VirtualServiceBuilder;
import me.snowdrop.istio.client.DefaultIstioClient;
import me.snowdrop.istio.client.IstioClient;


Config config = new ConfigBuilder().withMasterUrl(masterURL).build();
IstioClient istioClient = new DefaultIstioClient(config);


VirtualService virtualService = new VirtualServiceBuilder()
        .withApiVersion("networking.istio.io/v1alpha3")
        .withNewMetadata()
        .withName("details")
        .endMetadata()
        .withNewSpec()
        .withHosts("*")
        .withGateways("system-gateway")
        .addNewHttp()
        .addNewRoute()
        .withNewDestination()
     	.withHost("service-example")
        .withNewPort()
        .withNewNumberPort(9900)
        .endPort()
	.endDestination()
        .endRoute()
        .endHttp()
        .endSpec()
        .build();
        
 istioClient.virtualService().create(virtualService);