---
title: Custom Installation
---

import Tabs from "@theme/Tabs";
import TabItem from "@theme/TabItem";

## Install KubeVela with cert-manager

By default, KubeVela will use a self-signed certificate provided by [kube-webhook-certgen](https://github.com/jet/kube-webhook-certgen) for admissionWebhooks.
You can also use cert-manager if it's available. Note that you need to install cert-manager **before** the KubeVela chart.

```shell script
helm repo add jetstack https://charts.jetstack.io
helm repo update
helm install cert-manager jetstack/cert-manager --namespace cert-manager --version v1.2.0 --create-namespace --set installCRDs=true
```

Install kubevela with enabled certmanager:

```shell script
vela install --set admissionWebhooks.certManager.enabled=true
```

## Install Pre-release

```
# List all releases
vela version list -a

# Install the specified version.
vela install --version 1.2.0-beta.3
```

## Upgrade

### 1. Upgrade CLI

<Tabs
    className="unique-tabs"
    defaultValue="script"
    values={[
        {label: 'Script', value: 'script'},
        {label: 'Homebrew', value: 'homebrew'},
        {label: 'Download directly from releases', value: 'download'},
    ]}>
<TabItem value="script">

** MacOS/Linux **

```shell script
curl -fsSl https://kubevela.io/script/install.sh | bash -s 1.2.3
```

**Windows**

> Only the official release version is supported.

```shell script
powershell -Command "iwr -useb https://kubevela.io/script/install.ps1 | iex"
```

</TabItem>
<TabItem value="homebrew">

**macOS/Linux**

Update your brew first. Please note that the brew method only supports the installation of the official release version.

```shell script
brew update
```

Then install KubeVela CLI

```shell script
brew install kubevela
```

</TabItem>
<TabItem value="download">

- Download the latest `vela` binary file via [release log](https://github.com/oam-dev/kubevela/releases).
- Unzip the binary file, and configure the environment variables in `$PATH`, and you're done.

```shell script
sudo mv ./vela /usr/local/bin/vela
```

> [Installation Tips](https://github.com/oam-dev/kubevela/issues/625):
> If you are using a Mac system, it will pop up a warning that "vela" cannot be opened because the package from the developer cannot be verified.
>
> MacOS imposes stricter restrictions on the software that can run in the system. You can temporarily solve this problem by opening `System Preference ->Security & Privacy -> General` and clicking on `Allow Anyway`.

</TabItem>
</Tabs>

### 2. Upgrade Vela Core

If current version >=1.2.0

```shell
vela install --version v1.2.3
```

If current version < 1.2.0:

```shell
vela install --version v1.2.3 -r
```

### 3. Upgrade VelaUX

```shell
vela addon enable velaux version=v1.2.3
```

> If you set custom parameters during installation, be sure to include the corresponding parameters.

## Install Kubectl Vela Plugin

Install vela kubectl plugin can help you to ship applications more easily!

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className="unique-tabs"
defaultValue="krew"
values={[
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]}>
<TabItem value="krew">

1. [Install and set up](https://krew.sigs.k8s.io/docs/user-guide/setup/install/) Krew on your machine.
2. Discover plugins available on Krew:

```shell
kubectl krew update
```

3. install kubectl vela:

```shell script
kubectl krew install vela
```

</TabItem>
<TabItem value="script">

**macOS/Linux**

```shell script
curl -fsSl https://kubevela.io/script/install-kubectl-vela.sh | bash
```

You can also download the binary from [release pages ( >= v1.0.3)](https://github.com/oam-dev/kubevela/releases) manually.
Kubectl will discover it from your system path automatically.

</TabItem>
</Tabs>

For more usage please reference [kubectl plugin](../kubectlplugin).
