如何使用 Kubernetes Go 库创建一个简单的客户端应用程序? [英] How can I create a simple client app with the Kubernetes Go library?

问题描述

我正在努力使用 Kubernetes Go 库.文档——至少是我发现的——出现了与图书馆本身的最新日期.由于导入问题，提供的示例无法构建.我只是想做一些简单的事情:按名称获取 Service 对象并打印一些属性(如 nodePort).我只需要一个简单的库使用示例就可以了.

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 The docs--at least the ones I found--appear out-of-date with the library itself.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 issues with the imports. I'm just trying to do something simple: get a Service object by name and print some attributes (like nodePort). I just need a simple example of library usage to get me going.

我可以使用 RESTful API 轻松做到这一点，但这感觉就像是在重新发明轮子.

I could easily do this using the RESTful API but that feels like re-inventing the wheel.

推荐答案

所以经过一些实验和来自 k8s Slack 频道的提示，我有了这个例子.也许有人可以使用正确的导入路径更新示例.

So after a little experimentation and a hint from the k8s Slack channel, I have this example. Perhaps someone can update the example with a proper import path.

package main

import (
    "fmt"
    "log"

    "github.com/kubernetes/kubernetes/pkg/api"
    client "github.com/kubernetes/kubernetes/pkg/client/unversioned"
)

func main() {

    config := client.Config{
        Host: "http://my-kube-api-server.me:8080",
    }
    c, err := client.New(&config)
    if err != nil {
        log.Fatalln("Can't connect to Kubernetes API:", err)
    }

    s, err := c.Services(api.NamespaceDefault).Get("some-service-name")
    if err != nil {
        log.Fatalln("Can't get service:", err)
    }
    fmt.Println("Name:", s.Name)
    for p, _ := range s.Spec.Ports {
        fmt.Println("Port:", s.Spec.Ports[p].Port)
        fmt.Println("NodePort:", s.Spec.Ports[p].NodePort)
    }
}

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