# Overview

CCE provides multiple types of add-ons to extend cluster functions and meet feature requirements. You can install add-ons as required.

Table 1 Add-on list
Add-on Name | Introduction
--- | ---
coredns | The coredns add-on is a DNS server that provides domain name resolution services for Kubernetes clusters. coredns chains plug-ins to provide additional features.
storage-driver | storage-driver is a FlexVolume driver used to support IaaS storage services such as EVS, SFS, and OBS.
everest | Everest is a cloud native container storage system. Based on CSI, clusters of Kubernetes v1.15.6 and later can connect to storage services such as EVS, OBS, SFS, and SFS Turbo.
autoscaler | The autoscaler add-on resizes a cluster based on pod scheduling status and resource usage.
metrics-server | metrics-server is an aggregator for monitoring data of core cluster resources.
gpu-beta | gpu-beta is a device management add-on that supports GPUs in containers. It supports only NVIDIA drivers.

Parent topic: Add-ons