# Manage Helm applications

The container management module supports interface-based management of Helm, including creating Helm instances using Helm charts, customizing Helm instance parameters, and managing the full lifecycle of Helm instances.

This section will take [cert-manager](https://cert-manager.io/docs/) as an example to introduce how to create and manage Helm applications through the container management interface.

## Prerequisites

- The container management module [connected to the Kubernetes cluster](../clusters/integrate-cluster.md) or [created the Kubernetes cluster](../clusters/create-cluster.md), and can access the UI interface of the cluster .

- Completed a [namespace creation](../namespaces/createns.md), [user creation](../../../ghippo/user-guide/access-control/user.md), and grant [`NS Admin`](../permissions/permission-brief.md#ns-admin) or higher permissions to the user. For details, refer to [Namespace Authorization](../permissions/cluster-ns-auth.md).

## Install the Helm application

Follow the steps below to install the Helm application.

1. Click a cluster name to enter __Cluster Details__ .

     

2. In the left navigation bar, click __Helm Apps__ -> __Helm chart__ to enter the Helm chart page.

     On the Helm chart page, select the [Helm repository](helm-repo.md) named __addon__ , and all the Helm chart templates under the __addon__ repository will be displayed on the interface.
     Click the Chart named __cert-manager__ .

     

3. On the installation page, you can see the relevant detailed information of the Chart, select the version to be installed in the upper right corner of the interface, and click the __Install__ button. Here select v1.9.1 version for installation.

     

4. Configure __Name__ , __Namespace__ and __Version Information__ . You can also customize parameters by modifying YAML in the **Parameter Configuration** area below. Click __OK__ .

     

5. The system will automatically return to the list of Helm applications, and the status of the newly created Helm application is __Installing__ , and the status will change to __Running__ after a period of time.

     

## Update the Helm application

After we have completed the installation of a Helm application through the interface, we can perform an update operation on the Helm application. Note: Update operations using the UI are only supported for Helm apps installed via the UI.

Follow the steps below to update the Helm application.

1. Click a cluster name to enter __Cluster Details__ .

     

2. In the left navigation bar, click __Helm Apps__ to enter the Helm application list page.

     On the Helm application list page, select the Helm application that needs to be updated, click the __ ...__ operation button on the right side of the list, and select the __Update__ operation in the drop-down selection.

     

3. After clicking the __Update__ button, the system will jump to the update interface, where you can update the Helm application as needed. Here we take updating the http port of the __dao-2048__ application as an example.

     

4. After modifying the corresponding parameters. You can click the __Change__ button under the parameter configuration to compare the files before and after the modification. After confirming that there is no error, click the __OK__ button at the bottom to complete the update of the Helm application.

     

5. The system will automatically return to the Helm application list, and a pop-up window in the upper right corner will prompt __update successful__ .

     

## View Helm operation records

Every installation, update, and deletion of Helm applications has detailed operation records and logs for viewing.

1. In the left navigation bar, click __Cluster Operations__ -> __Recent Operations__ , and then select the __Helm Operations__ tab at the top of the page. Each record corresponds to an install/update/delete operation.

     

2. To view the detailed log of each operation: Click __⋮__ on the right side of the list, and select __Log__ from the pop-up menu.

     

3. At this point, the detailed operation log will be displayed in the form of console at the bottom of the page.

     

## Delete the Helm application

Follow the steps below to delete the Helm application.

1. Find the cluster where the Helm application to be deleted resides, click the cluster name, and enter __Cluster Details__ .

     

2. In the left navigation bar, click __Helm Apps__ to enter the Helm application list page.

     On the Helm application list page, select the Helm application you want to delete, click the __ ...__ operation button on the right side of the list, and select __Delete__ from the drop-down selection.

     

3. Enter the name of the Helm application in the pop-up window to confirm, and then click the __Delete__ button.