I want to run the Go K8S client library and conect to the cluster with kubeconfig which is locally defined on my mac under /Users/i0334456/.kube/config
The error is:
# k8s-go-client/vendor/k8s.io/client-go/rest
vendor/k8s.io/client-go/rest/request.go:598:31: not enough arguments in call to watch.NewStreamWatcher
have (*versioned.Decoder)
want (watch.Decoder, watch.Reporter)
This is the program which I try to use
package main
import (
"flag"
"fmt"
"os"
"path/filepath"
"time"
"k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/tools/clientcmd"
)
func main() {
var kubeconfig *string
if home := homeDir(); home != "" {
kubeconfig = flag.String("kubeconfig", filepath.Join(home, ".kube", "config"), "(optional) absolute path to the kubeconfig file")
} else {
kubeconfig = flag.String("kubeconfig", "", "absolute path to the kubeconfig file")
}
flag.Parse()
// use the current context in kubeconfig
config, err := clientcmd.BuildConfigFromFlags("", *kubeconfig)
if err != nil {
panic(err.Error())
}
// create the clientset
clientset, err := kubernetes.NewForConfig(config)
if err != nil {
panic(err.Error())
}
for {
pods, err := clientset.CoreV1().Pods("").List(metav1.ListOptions{})
if err != nil {
panic(err.Error())
}
fmt.Printf("There are %d pods in the cluster\n", len(pods.Items))
// Examples for error handling:
// - Use helper functions like e.g. errors.IsNotFound()
// - And/or cast to StatusError and use its properties like e.g. ErrStatus.Message
namespace := "default"
pod := "example-xxxxx"
_, err = clientset.CoreV1().Pods(namespace).Get(pod, metav1.GetOptions{})
if errors.IsNotFound(err) {
fmt.Printf("Pod %s in namespace %s not found\n", pod, namespace)
} else if statusError, isStatus := err.(*errors.StatusError); isStatus {
fmt.Printf("Error getting pod %s in namespace %s: %v\n",
pod, namespace, statusError.ErrStatus.Message)
} else if err != nil {
panic(err.Error())
} else {
fmt.Printf("Found pod %s in namespace %s\n", pod, namespace)
}
time.Sleep(10 * time.Second)
}
}
func homeDir() string {
if h := os.Getenv("HOME"); h != "" {
return h
}
return os.Getenv("USERPROFILE") // windows
}
I was tried to provide my path as arguments
on Goland IDE like /Users/i0334456/.kube/config
without success, what am I missing here ?
I want to access via the Go client for K8S to the cluster via API's
if I can use the path explicit in the code this is good either...
make sure you ran through the dependency installation steps as described here: https://github.com/kubernetes/client-go/blob/master/INSTALL.md#go-modules That solved this problem for me.
Also mentioned in https://github.com/kubernetes/client-go/issues/584