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Showing content from https://github.com/kubernetes-client/javascript below:

GitHub - kubernetes-client/javascript: JavaScript client

The Javascript clients for Kubernetes is implemented in typescript, but can be called from either Javascript or Typescript. The client is implemented for server-side use with Node.

npm install @kubernetes/client-node

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

const kc = new k8s.KubeConfig();
kc.loadFromDefault();

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

k8sApi.listNamespacedPod({ namespace: 'default' }).then((res) => {
    console.log(res);
});

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

const kc = new k8s.KubeConfig();
kc.loadFromDefault();

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

var namespace = {
    metadata: {
        name: 'test',
    },
};

k8sApi.createNamespace({ body: namespace }).then(
    (response) => {
        console.log('Created namespace');
        console.log(response);
        k8sApi.readNamespace(namespace.metadata.name).then((response) => {
            console.log(response);
            k8sApi.deleteNamespace(namespace.metadata.name, {} /* delete options */);
        });
    },
    (err) => {
        console.log('Error!: ' + err);
    },
);

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

const cluster = {
    name: 'my-server',
    server: 'http://server.com',
};

const user = {
    name: 'my-user',
    password: 'some-password',
};

const context = {
    name: 'my-context',
    user: user.name,
    cluster: cluster.name,
};

const kc = new k8s.KubeConfig();
kc.loadFromOptions({
    clusters: [cluster],
    users: [user],
    contexts: [context],
    currentContext: context.name,
});
const k8sApi = kc.makeApiClient(k8s.CoreV1Api);
...

There are several more JS and TS examples in the examples directory.

Documentation for the library is split into two resources:

1. The Kubernetes API Reference is the source-of-truth for all Kubernetes client libraries, including this one. We suggest starting here!
2. The Typedoc autogenerated docs can be viewed online and can also be built locally (see below)

Prior to the 0.13.0 release, release versions did not track Kubernetes versions. Starting with the 0.13.0 release, we will increment the minor version whenever we update the minor Kubernetes API version (e.g. 1.19.x) that this library is generated from.

We switched from request to fetch as the HTTP(S) backend for the 1.0.0 release.

Generally speaking newer clients will work with older Kubernetes, but compatability isn't 100% guaranteed.

Key:

• ✓ Exactly the same features / API objects in both javascript-client and the Kubernetes version.
• + javascript-client has features or api objects that may not be present in the Kubernetes cluster, but everything they have in common will work.
• - The Kubernetes cluster has features the javascript-client library can't use (additional API objects, etc).
• x The Kubernetes cluster has no guarantees to support the API client of this version, as it only promises n-2 version support. It is not tested, and operations using API versions that have been deprecated and removed in later server versions won't function correctly.

• Multiple kubeconfigs are not completely supported. Credentials are cached based on the kubeconfig username and these can collide across configs. Here is the related issue.

• In scenarios where multiple headers with the same key are required in a request, such as Impersonate-Group, avoid using fetch. Fetch will merge the values into a single header key, with the values as a single string vs a list of strings, Impersonate-Group: "group1,group2". The workaround is to use a low-level library such as https to make the request. Refer to issue #2474 for more details.

All dependencies of this project are expressed in its package.json file. Before you start developing, ensure that you have NPM installed, then run:

Documentation is generated via typedoc:

To view the generated documentation, open docs/index.html

Run npm run format or install an editor plugin like https://github.com/prettier/prettier-vscode and https://marketplace.visualstudio.com/items?itemName=EditorConfig.EditorConfig

Run npm run lint or install an editor plugin.

Tests are written using the node:test test runner and node:assert assertion library. See config_test.ts for an example.

To run tests, execute the following:

Please see CONTRIBUTING.md for instructions on how to contribute.

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