# Online Install in a Standard Kubernetes Cluster

This page will guide you to install DCE Community package online in a standard Kubernetes cluster, which is recommended in the production environment.

!!! note

    - Click [Online Install DCE Community](../../../videos/install.md) to watch a video demo.
    - If you want install it offline, refer to [Offline Install](offline.md).

## Preparation

- Prepare a Kubernetes cluster. For resources required, see [Cluster Resources for Installing DCE Community](../resources.md).

    - Create a StorageClass and set it the default SC
    - Install CoreDNS in the cluster
    - If there is only one node in the cluster, make sure you have removed taints for that node

- [Install Dependencies](../../install-tools.md).

    You must install certain versions of each dependency:

    - helm ≥ 3.11.1
    - skopeo ≥ 1.11.1
    - kubectl ≥ 1.25.6
    - yq ≥ 4.31.1

## Download and Install

1. Download the `dce5-installer` binary file on the controller node of the Kubernetes cluster
   (you can also [download it via browser](../../../download/index.md)).

    Take VERSION=v0.16.0 as an example.

    ```shell
    export VERSION=v0.16.0

    ## For ARM CPU, change `dce5-installer-$VERSION` to `dce5-installer-$VERSION-linux-arm64`

    curl -Lo ./dce5-installer https://proxy-qiniu-download-public.daocloud.io/DaoCloud_Enterprise/dce5/dce5-installer-$VERSION
    chmod +x ./dce5-installer
    ```

2. Customize `clusterConfig.yaml`

    - If Console is exposed via NodePort (recommended only for PoC use cases), skip this step.

    - In non-public cloud environment (virtual/physical machine), please enable load balancer (metallb) to
      avoid NodePort instability caused by node IP changes. Plan your network carefully and set up 2 necessary VIPs.
      Here is an example of `clusterConfig.yaml`:

        ```yaml title="clusterConfig.yaml"
        apiVersion: provision.daocloud.io/v1alpha3
        kind: ClusterConfig
        spec:
          loadBalancer:
            type: metallb
            istioGatewayVip: 10.6.229.10/32 # (1)
            insightVip: 10.6.229.11/32 # (2)
        ```

        1. This is the VIP of the Istio gateway and also the browser URL of the DCE 5.0
        2. The VIP used by the Insight-Server of the global service cluster to collect the network paths
           of all sub-cluster monitoring metrics

     - If it is a public cloud environment that already has a Kubernetes load balancer, set `clusterConfig.yaml` as follows:

        ```yaml title="clusterConfig.yaml"
        apiVersion: provision.daocloud.io/v1alpha3
        kind: ClusterConfig
        spec:
          loadBalancer:
            type: cloudLB
        ```

3. Install DCE 5.0.

    ```shell
    ./dce5-installer install-app -c clusterConfig.yaml -z
    ```

    !!! note

        - For `clusterConfig.yaml` file settings, refer to [Online Installation](online.md#_2).
        - `-z` minimal install
        - `-c` specifies the cluster configuration file. You don't need to specify `-c`
          when using NodePort to expose the console.
        - `-d` enable debug mode
        - `--serial` specifies that all installation tasks are executed serially

4. After the installation is complete, the command line will prompt that the installation is successful. Congratulations!
    
    Now you can use the **default account and password (admin/changeme)** to explore the new DCE 5.0 through the URL prompted on the screen!

    ![success](https://docs.daocloud.io/daocloud-docs-images/docs/install/images/success.png)

    !!! success

        Please write down the prompted URL for your next visit.

5. Before fully explore the features of DCE 5.0, you need to apply for a license.
   The Community package is provided for free. All you need to do is to
   [apply for a free license](../../../dce/license0.md).