Kubernetes 如何访问第三方自定义资源定义?
我正在开发Operator SDK。在我的操作员控制器中,我尝试创建一个Istio自定义资源——virtualservices。virtualservices的定义如下所示:Kubernetes 如何访问第三方自定义资源定义?,kubernetes,istio,operator-sdk,Kubernetes,Istio,Operator Sdk,我正在开发Operator SDK。在我的操作员控制器中,我尝试创建一个Istio自定义资源——virtualservices。virtualservices的定义如下所示: kind: CustomResourceDefinition apiVersion: apiextensions.k8s.io/v1beta1 metadata: name: virtualservices.networking.istio.io 在这里,我认为有几件事必须首先做: 获取Istio API模块 在我的
kind: CustomResourceDefinition
apiVersion: apiextensions.k8s.io/v1beta1
metadata:
name: virtualservices.networking.istio.io
在这里,我认为有几件事必须首先做:
下面是一个使用istio创建istio虚拟服务的示例。这里我们使用
istio.io/api/networking/v1alpha3
和istio.io/client go/pkg/api/networking/v1alpha3
创建VirtualService
自定义资源规范。然后使用istio.io/client go/pkg/clientset/versioned
将此规范实际发送到kubernetes api服务器
package main
import (
"context"
"log"
"os"
v1alpha3Spec "istio.io/api/networking/v1alpha3"
"istio.io/client-go/pkg/apis/networking/v1alpha3"
versionedclient "istio.io/client-go/pkg/clientset/versioned"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/tools/clientcmd"
)
func main() {
kubeconfig := os.Getenv("KUBECONFIG")
namespace := os.Getenv("NAMESPACE")
if len(kubeconfig) == 0 || len(namespace) == 0 {
log.Fatalf("Environment variables KUBECONFIG and NAMESPACE need to be set")
}
restConfig, err := clientcmd.BuildConfigFromFlags("", kubeconfig)
if err != nil {
log.Fatalf("Failed to create k8s rest client: %s", err)
}
ic, err := versionedclient.NewForConfig(restConfig)
if err != nil {
log.Fatalf("Failed to create istio client: %s", err)
}
var host []string
host[0] = "abc.com"
virtualServiceCrd := &v1alpha3.VirtualService{
TypeMeta: metav1.TypeMeta{
APIVersion: "networking.istio.io/v1alpha3",
Kind: "Virtualservice",
},
ObjectMeta: metav1.ObjectMeta{
Name: "default",
},
Spec: v1alpha3Spec.VirtualService{
Hosts: host,
},
}
ic.NetworkingV1alpha3().VirtualServices(namespace).Create(context.TODO(), virtualServiceCrd, metav1.CreateOptions{})
}