在最近的一个运维平台中,需要将K8S集成到项目中,因为采用go语言的beego框架写的,所以采用client-go与k8s交互;
简单的测试代码:
package main
import (
"flag"
"k8s.io/client-go/tools/clientcmd"
"log"
"k8s.io/client-go/kubernetes"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"fmt"
)
var clientset *kubernetes.Clientset
func main() {
k8sconfig := flag.String("k8sconfig","./k8sconfig","kubernetes config file path")
flag.Parse()
config , err := clientcmd.BuildConfigFromFlags("",*k8sconfig)
if err != nil {
log.Println(err)
}
clientset , err = kubernetes.NewForConfig(config)
if err != nil {
log.Fatalln(err)
} else {
fmt.Println("connect k8s success")
}
//获取POD
pods,err := clientset.CoreV1().Pods("").List(metav1.ListOptions{})
if err != nil {
log.Println(err.Error())
}
fmt.Println(pods.Items[1].Name)
fmt.Println(pods.Items[1].CreationTimestamp)
fmt.Println(pods.Items[1].Labels)
fmt.Println(pods.Items[1].Namespace)
fmt.Println(pods.Items[1].Status.HostIP)
fmt.Println(pods.Items[1].Status.PodIP)
fmt.Println(pods.Items[1].Status.StartTime)
fmt.Println(pods.Items[1].Status.Phase)
fmt.Println(pods.Items[1].Status.ContainerStatuses[0].RestartCount) //重启次数
fmt.Println(pods.Items[1].Status.ContainerStatuses[0].Image) //获取重启时间
//获取NODE
fmt.Println("##################")
nodes, err := clientset.CoreV1().Nodes().List(metav1.ListOptions{})
fmt.Println(nodes.Items[0].Name)
fmt.Println(nodes.Items[0].CreationTimestamp) //加入集群时间
fmt.Println(nodes.Items[0].Status.NodeInfo)
fmt.Println(nodes.Items[0].Status.Conditions[len(nodes.Items[0].Status.Conditions)-1].Type)
fmt.Println(nodes.Items[0].Status.Allocatable.Memory().String())
}
并附上一篇个人比较认可的博客,以供参考
https://blog.csdn.net/huwh_/article/details/78821805