---
title: Custom Installation/Upgrade
---

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## Install KubeVela with Existing Kubernetes cluster

### 1. Prerequisites:

- Kubernetes cluster >= v1.19 && <= v1.22

KubeVela relies on Kubernetes as a control plane. The control plane could be any managed Kubernetes offering or your own clusters, such as:

- Alibaba Cloud [ACK Service](https://www.aliyun.com/product/kubernetes)
- AWS [EKS Service](https://aws.amazon.com/cn/eks)
- Azure [AKS Service](https://azure.microsoft.com/en-us/services/kubernetes-service)
- Google [GKE Service](https://cloud.google.com/kubernetes-engine)
- Rancher [K3s](https://rancher.com/docs/k3s/latest/en/quick-start/) or [RKE](https://github.com/rancher/rke/releases)

> Please make sure one of the [ingress controllers](https://kubernetes.github.io/ingress-nginx/deploy/) is available in your Kubernetes cluster.

### 2. Install KubeVela CLI

KubeVela CLI provides an easy to engage and manage your application delivery in command lines.

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    values={[
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        {label: 'Homebrew', value: 'homebrew'},
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    ]}>
<TabItem value="script">

** MacOS/Linux **

```shell script
curl -fsSl https://kubevela.net/script/install.sh | bash -s 1.4.1
```

**Windows**

> Only the official release version is supported.

```shell script
powershell -Command "iwr -useb https://kubevela.net/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/kubevela/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/kubevela/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>
<TabItem value="docker">

If you have docker environment, you can easily run CLI with the vela CLI docker image called `oamdev/vela-cli`:

```
$ docker run --rm -it -v ~/.kube:/root/.kube oamdev/vela-cli version
CLI Version: master
Core Version: v1.3.4
GitRevision: git-1d823780
GolangVersion: go1.17.10
```

Refer to [using Vela CLI docker image](./system-operation/vela-cli-image) for more usage.

</TabItem>
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### 3. Install KubeVela Core

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    values={[
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<TabItem value="vela">

```shell script
$ vela install --version v1.4.1
```

<details> <summary> check out the outcome </summary>

```shell
...
Watching for changes to Job kubevela-vela-core-cluster-gateway-tls-secret-patch with timeout of 18m0s
Add/Modify event for kubevela-vela-core-cluster-gateway-tls-secret-patch: ADDED
kubevela-vela-core-cluster-gateway-tls-secret-patch: Jobs active: 0, jobs failed: 0, jobs succeeded: 0
Add/Modify event for kubevela-vela-core-cluster-gateway-tls-secret-patch: MODIFIED
kubevela-vela-core-cluster-gateway-tls-secret-patch: Jobs active: 1, jobs failed: 0, jobs succeeded: 0
Add/Modify event for kubevela-vela-core-cluster-gateway-tls-secret-patch: MODIFIED
kubevela-vela-core-cluster-gateway-tls-secret-patch: Jobs active: 1, jobs failed: 0, jobs succeeded: 0
Add/Modify event for kubevela-vela-core-cluster-gateway-tls-secret-patch: MODIFIED
Starting delete for "kubevela-vela-core-admission" ServiceAccount
Starting delete for "kubevela-vela-core-admission" ClusterRole
Starting delete for "kubevela-vela-core-admission" ClusterRoleBinding
Starting delete for "kubevela-vela-core-admission" Role
Starting delete for "kubevela-vela-core-admission" RoleBinding
Starting delete for "kubevela-vela-core-admission-patch" Job
Starting delete for "kubevela-vela-core-cluster-gateway-admission" ServiceAccount
Starting delete for "kubevela-vela-core-cluster-gateway-admission" Role
Starting delete for "kubevela-vela-core-cluster-gateway-admission" RoleBinding
Starting delete for "kubevela-vela-core-cluster-gateway-tls-secret-patch" Job

KubeVela control plane has been successfully set up on your cluster.
If you want to enable dashboard, please run "vela addon enable velaux"
```

</details>

</TabItem>

<TabItem value="helm">

If you are helm user, you can also use helm to install kubevela core:

> helm v3.2.0+ required

```
helm repo add kubevela https://charts.kubevela.net/core
helm repo update
helm install --create-namespace -n vela-system kubevela kubevela/vela-core --version 1.4.1 --wait
```

</TabItem>
</Tabs>

### 4 Install VelaUX

Please refer to [VelaUX Guide](../reference/addons/velaux).

## Upgrade

> If you're trying to upgrade from a big version later (e.g. from 1.2.x to 1.4.x), please refer to [version migration](./system-operation/migration-from-old-version) for more guides.

### 1. Upgrade CLI

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        {label: 'Docker', value: 'docker'},
    ]}>
<TabItem value="script">

** MacOS/Linux **

```shell script
curl -fsSl https://kubevela.io/script/install.sh | bash -s 1.4.1
```

**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/kubevela/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/kubevela/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>

<TabItem value="docker">

Pull the latest image from the docker registry, or specify a version as tag:

```shell script
docker pull oamdev/vela-cli:latest
```

</TabItem>
</Tabs>

### 2. Upgrade Vela Core

> Please make sure you already upgraded the Vela CLI to 1.4.1.

```shell
vela install --version v1.4.1
```

### 3. Upgrade VelaUX

```shell
vela addon enable velaux version=v1.4.0
```

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

## Uninstall

Before uninstalling kubevela, you must delete all applications and disable all addons.

1. Uninstall VelaUX

```
vela addon disable velaux
```

2. Uninstall KubeVela Core

```
vela uninstall
```

3. Uninstall CRD

Before deleting, you must delete all CR resources.

```
kubectl get crd |grep oam | awk '{print $1}' | xargs kubectl delete crd
```

## 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 1.3.0-beta.2
```

## Install Kubectl Vela Plugin

`kubectl-vela` provides the same features with `vela` CLI, it helps you to integrate with kubectl better.

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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/kubevela/kubevela/releases) manually.
Kubectl will discover it from your system path automatically.

</TabItem>
</Tabs>
