mirror of https://github.com/istio/client-go.git
97 lines
2.9 KiB
Go
97 lines
2.9 KiB
Go
// Copyright Istio Authors
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
// This example is adapted from:
|
|
// https://github.com/aspenmesh/istio-client-go/blob/4de6e89009c427dbc602b0c6bbdc8840ef1905e6/cmd/example-client/client.go
|
|
|
|
package main
|
|
|
|
import (
|
|
"context"
|
|
"log"
|
|
"os"
|
|
|
|
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
|
"k8s.io/client-go/tools/clientcmd"
|
|
|
|
versionedclient "istio.io/client-go/pkg/clientset/versioned"
|
|
)
|
|
|
|
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)
|
|
}
|
|
|
|
// Test VirtualServices
|
|
vsList, err := ic.NetworkingV1alpha3().VirtualServices(namespace).List(context.TODO(), metav1.ListOptions{})
|
|
if err != nil {
|
|
log.Fatalf("Failed to get VirtualService in %s namespace: %s", namespace, err)
|
|
}
|
|
|
|
for i := range vsList.Items {
|
|
vs := vsList.Items[i]
|
|
log.Printf("Index: %d VirtualService Hosts: %+v\n", i, vs.Spec.GetHosts())
|
|
}
|
|
|
|
// Test DestinationRules
|
|
drList, err := ic.NetworkingV1alpha3().DestinationRules(namespace).List(context.TODO(), metav1.ListOptions{})
|
|
if err != nil {
|
|
log.Fatalf("Failed to get DestinationRule in %s namespace: %s", namespace, err)
|
|
}
|
|
|
|
for i := range drList.Items {
|
|
dr := drList.Items[i]
|
|
log.Printf("Index: %d DestinationRule Host: %+v\n", i, dr.Spec.GetHost())
|
|
}
|
|
|
|
// Test Gateway
|
|
gwList, err := ic.NetworkingV1alpha3().Gateways(namespace).List(context.TODO(), metav1.ListOptions{})
|
|
if err != nil {
|
|
log.Fatalf("Failed to get Gateway in %s namespace: %s", namespace, err)
|
|
}
|
|
|
|
for i := range gwList.Items {
|
|
gw := gwList.Items[i]
|
|
for _, s := range gw.Spec.GetServers() {
|
|
log.Printf("Index: %d Gateway servers: %+v\n", i, s)
|
|
}
|
|
}
|
|
|
|
// Test ServiceEntry
|
|
seList, err := ic.NetworkingV1alpha3().ServiceEntries(namespace).List(context.TODO(), metav1.ListOptions{})
|
|
if err != nil {
|
|
log.Fatalf("Failed to get ServiceEntry in %s namespace: %s", namespace, err)
|
|
}
|
|
|
|
for i := range seList.Items {
|
|
se := seList.Items[i]
|
|
for _, h := range se.Spec.GetHosts() {
|
|
log.Printf("Index: %d ServiceEntry hosts: %+v\n", i, h)
|
|
}
|
|
}
|
|
}
|