How can I create a simple client app with the Kubernetes Go library?

Question

I\'m struggling with the Kubernetes Go library. The docs--at least the ones I found--appear out-of-date with the library itself. The example provided does not build because of

Answer 1

With kubernetes go client, it could be done this way:

package main

import (
    "flag"
    "fmt"

    "k8s.io/client-go/kubernetes"
    "k8s.io/client-go/pkg/api/v1"
    "k8s.io/client-go/tools/clientcmd"
)

var (
    kubeconfig = flag.String("kubeconfig", "./config", "absolute path to the kubeconfig file")
)

func main() {
    flag.Parse()
    // uses the current context in kubeconfig
    config, err := clientcmd.BuildConfigFromFlags("", *kubeconfig)
    if err != nil {
        panic(err.Error())
    }
    // creates the clientset
    clientset, err := kubernetes.NewForConfig(config)
    if err != nil {
        panic(err.Error())
    }
    services, err := clientset.Core().Services("").List(v1.ListOptions{})
    if err != nil {
        panic(err.Error())
    }
    fmt.Printf("There are %d pods in the cluster\n", len(services.Items))

    for _, s := range services.Items {
        for p, _ := range s.Spec.Ports {
            fmt.Println("Port:", s.Spec.Ports[p].Port)
            fmt.Println("NodePort:", s.Spec.Ports[p].NodePort)
        }
    }
}