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## TL;DR;

```console
helm repo add christianhuth https://charts.christianhuth.de
helm repo update
helm install my-release christianhuth/etcd-defrag
```

## Introduction

The process of defragmentation releases storage space blocked by ETCD fragmentation back to the file system.

**Note that defragmentation to a live member blocks the system from reading and writing data while rebuilding its states.**

This chart bootstraps a CronJob to perform periodically [defragmentation for ETCD](https://etcd.io/docs/latest/op-guide/maintenance/#defragmentation) on a [Kubernetes](http://kubernetes.io) cluster using the [Helm](https://helm.sh) package manager.

## Prerequisites

- Kubernetes 1.19+

## Installing the Chart

To install the chart with the release name `my-release`:

```console
helm repo add christianhuth https://charts.christianhuth.de
helm repo update
helm install my-release christianhuth/etcd-defrag
```

These commands deploy the CronJob on the Kubernetes cluster in the default configuration. The [Values](#values) section lists the values that can be configured during installation.

> **Tip**: List all releases using `helm list`

## Uninstalling the Chart

To uninstall the `my-release` deployment:

```console
helm uninstall my-release
```

The command removes all the Kubernetes components associated with the chart and deletes the release.

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Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`.

Alternatively, a YAML file that specifies the values for the parameters can be provided while installing the chart. For example,

```console
helm install my-release -f values.yaml christianhuth/etcd-defrag
```