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# kOps - Kubernetes Operations

[GoDoc]: https://pkg.go.dev/k8s.io/kOps
[GoDoc Widget]: https://godoc.org/k8s.io/kOps?status.svg

The easiest way to get a production grade Kubernetes cluster up and running.

## 2020-05-06 etcd-manager Certificate Expiration Advisory

kops versions released today contain a **critical fix** to etcd-manager: 1 year after creation (or first adopting etcd-manager), clusters will stop responding due to expiration of a TLS certificate. Upgrading kOps to 1.15.3, 1.16.2, 1.17.0-beta.2, or 1.18.0-alpha.3 is highly recommended. Please see the [advisory](./advisories/etcd-manager-certificate-expiration.md) for the full details.

## What is kOps?

We like to think of it as `kubectl` for clusters.

`kops` helps you create, destroy, upgrade and maintain production-grade, highly
available, Kubernetes clusters from the command line. AWS (Amazon Web Services)
is currently officially supported, with GCE and OpenStack in beta support, and other platforms planned.

## Can I see it in action?

<p align="center">
  <a href="https://asciinema.org/a/97298">
  <img src="https://asciinema.org/a/97298.png" width="885"></image>
  </a>
</p>


## Features

* Automates the provisioning of Kubernetes clusters in [AWS](getting_started/aws.md) and [GCE](getting_started/gce.md)
* Deploys Highly Available (HA) Kubernetes Masters
* Built on a state-sync model for **dry-runs** and automatic **idempotency**
* Ability to generate [Terraform](terraform.md)
* Supports custom Kubernetes [add-ons](operations/addons.md)
* Command line [autocompletion](cli/kops_completion.md)
* YAML Manifest Based API [Configuration](manifests_and_customizing_via_api.md)
* [Templating](operations/cluster_template.md) and dry-run modes for creating
 Manifests
* Choose from eight different CNI [Networking](networking.md) providers out-of-the-box
* Supports upgrading from [kube-up](upgrade_from_kubeup.md)
* Capability to add containers, as hooks, and files to nodes via a [cluster manifest](cluster_spec.md)