GKE Client Libraries

To interact with the GKE (Kubernetes) API programmatically, use the official Kubernetes client libraries.

Prerequisite: These libraries interact with the Kubernetes API. You must already have a running GKE cluster and valid credentials (for example, by running gcloud container clusters get-credentials) before running this code.

Getting Started

Kubernetes client libraries allow you to manage clusters and workloads from within your application code.

Python

Installation:
```
pip install kubernetes
```

Usage Example:

from kubernetes import client, config
config.load_kube_config() # Loads from ~/.kube/config
v1 = client.CoreV1Api()
print("Listing pods with their IPs:")
ret = v1.list_pod_for_all_namespaces(watch=False)
for i in ret.items:
    print("%s\t%s\t%s" % (i.status.pod_ip, i.metadata.namespace, i.metadata.name))

Go

Installation:
```
go get k8s.io/client-go@latest
```

Usage Example:

import (
    "k8s.io/client-go/kubernetes"
    "k8s.io/client-go/tools/clientcmd"
)
config, _ := clientcmd.BuildConfigFromFlags("", kubeconfig)
clientset, _ := kubernetes.NewForConfig(config)
pods, _ := clientset.CoreV1().Pods("").List(
    context.TODO, metav1.ListOptions{})

Node.js (TypeScript)

Installation:
```
npm install @kubernetes/client-node
```

Usage Example:

const k8s = require('@kubernetes/client-node');

const kc = new k8s.KubeConfig();
kc.loadFromDefault(); // Automatically detects local vs. in-cluster configuration

const k8sApi = kc.makeApiClient(k8s.CoreV1Api);

// In most recent library versions, parameters must be passed inside an object
k8sApi.listNamespacedPod({ namespace: 'default' }).then((res) => {
    const pods = res.items || res.body.items;
    console.log(`Found ${pods.length} pods in 'default' namespace.`);
});

Java

Java Reference

GKE-specific API (Container Service)

To manage the GKE service itself (e.g., create/delete clusters) programmatically, use the Google Cloud Container client libraries.

Google Cloud Container Client Libraries

2.3 KiB Raw Permalink Blame History

GKE Client Libraries

Getting Started

Python

Go

Node.js (TypeScript)

Java

GKE-specific API (Container Service)

2.3 KiB

Raw Permalink Blame History