---
title: Installing Addons
---

## Overview

Add-ons extend the functionality of Kubernetes.

This page lists some of the available add-ons and links to their respective installation instructions.

Add-ons in each section are sorted alphabetically - the ordering does not imply any preferential status.

## Networking and Network Policy

* [Calico](http://docs.projectcalico.org/latest/getting-started/kubernetes/installation/hosted/) is a secure L3 networking and network policy provider.
* [Canal](https://github.com/tigera/canal/tree/master/k8s-install/kubeadm) unites Flannel and Calico, providing networking and network policy.
* [Cilium](https://github.com/cilium/cilium) is a L3 network and network policy plugin that can enforce HTTP/API/L7 policies transparently. Both routing and overlay/encapsulation mode are supported.
* [Contiv](http://contiv.github.io) provides configurable networking (native L3 using BGP, overlay using vxlan, classic L2, and Cisco-SDN/ACI) for various use cases and a rich policy framework. Contiv project is fully [open sourced](http://github.com/contiv). The [installer](http://github.com/contiv/install) provides both kubeadm and non-kubeadm based installation options.
* [Flannel](https://github.com/coreos/flannel/blob/master/Documentation/kube-flannel.yml) is an overlay network provider that can be used with Kubernetes.
* [Romana](http://romana.io) is a Layer 3 networking solution for pod networks that also supports the [NetworkPolicy API](/docs/concepts/services-networking/networkpolicies/). Kubeadm add-on installation details available [here](https://github.com/romana/romana/tree/master/containerize).
* [Weave Net](https://www.weave.works/docs/net/latest/kube-addon/) provides networking and network policy, will carry on working on both sides of a network partition, and does not require an external database.

## Visualization &amp; Control

* [Dashboard](https://github.com/kubernetes/dashboard#kubernetes-dashboard) is a dashboard web interface for Kubernetes.
* [Weave Scope](https://www.weave.works/documentation/scope-latest-installing/#k8s) is a tool for graphically visualizing your containers, pods, services etc. Use it in conjunction with a [Weave Cloud account](https://cloud.weave.works/) or host the UI yourself.

## Legacy Add-ons

There are several other add-ons documented in the deprecated [cluster/addons](https://github.com/kubernetes/kubernetes/tree/master/cluster/addons) directory.

Well-maintained ones should be linked to here. PRs welcome!
