Convert array (struct) to json with golang

import "encoding/json"

data, _ := json.Marshal(m)

package main

import (
    "context"
    "encoding/json"
    "fmt"
    metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    "k8s.io/client-go/kubernetes"
    "k8s.io/client-go/tools/clientcmd"
    "log"
    "os"
    "path/filepath"
)

func main() {
    //Specify the file path of Kubeconfig
    kubeconfig := filepath.Join(os.Getenv("HOME"), ".kube", "config")
    config, err := clientcmd.BuildConfigFromFlags("", kubeconfig)
    if err != nil {
        log.Fatal(err)
    }

    //Load Kubeconfig
    clientset, err := kubernetes.NewForConfig(config)
    if err != nil {
        log.Fatal(err)
    }

    //Call the pod list
    namespace := "default"
    pods, err := clientset.CoreV1().Pods(namespace).List(context.TODO(), metav1.ListOptions{})
    if err != nil {
        log.Fatalln("failed to get pods:", err)
    }

    m := map[string]string{}

    // print pods
    // pods.Items: []v1.Pod
    for _, pod := range pods.Items {
        m[pod.Name] = string(pod.Status.Phase)
    }

    data, _ := json.Marshal(m)
    fmt.Printf(string(data))
}

{
	"external-dns-547f4784f7-852zf": "Running",
	"nginx-deployment-574b87c764-8vwdz": "Running",
	"nginx-deployment-574b87c764-dnr6m": "Running",
	"v01-app-54fc4b5d44-k5zfp": "Running",
	"v01-db-5b756dc6b-57grv": "Running"
}

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