Learn Kubernetes Basics

Tasks

Kubernetes v1.15 documentation is no longer actively maintained. The version you are currently viewing is a static snapshot. For up-to-date documentation, see the latest version.

Edit This Page

Use an HTTP Proxy to Access the Kubernetes API

This page shows how to use an HTTP proxy to access the Kubernetes API.

Before you begin

You need to have a Kubernetes cluster, and the kubectl command-line tool must be configured to communicate with your cluster. If you do not already have a cluster, you can create one by using Minikube, or you can use one of these Kubernetes playgrounds:

To check the version, enter kubectl version.

If you do not already have an application running in your cluster, start a Hello world application by entering this command:

kubectl run node-hello --image=gcr.io/google-samples/node-hello:1.0 --port=8080

Using kubectl to start a proxy server

This command starts a proxy to the Kubernetes API server:

kubectl proxy --port=8080

Exploring the Kubernetes API

When the proxy server is running, you can explore the API using curl, wget, or a browser.

Get the API versions:

curl http://localhost:8080/api/

{
  "kind": "APIVersions",
  "versions": [
    "v1"
  ],
  "serverAddressByClientCIDRs": [
    {
      "clientCIDR": "0.0.0.0/0",
      "serverAddress": "10.0.2.15:8443"
    }
  ]
}

Get a list of pods:

curl http://localhost:8080/api/v1/namespaces/default/pods

{
  "kind": "PodList",
  "apiVersion": "v1",
  "metadata": {
    "selfLink": "/api/v1/namespaces/default/pods",
    "resourceVersion": "33074"
  },
  "items": [
    {
      "metadata": {
        "name": "kubernetes-bootcamp-2321272333-ix8pt",
        "generateName": "kubernetes-bootcamp-2321272333-",
        "namespace": "default",
        "selfLink": "/api/v1/namespaces/default/pods/kubernetes-bootcamp-2321272333-ix8pt",
        "uid": "ba21457c-6b1d-11e6-85f7-1ef9f1dab92b",
        "resourceVersion": "33003",
        "creationTimestamp": "2016-08-25T23:43:30Z",
        "labels": {
          "pod-template-hash": "2321272333",
          "run": "kubernetes-bootcamp"
        },
        ...
}

What's next

Learn more about kubectl proxy.

Feedback