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Version: V6.2

Deploy with Helm Chart

This document will guide you in detail on how to deploy the Wordpress application using Rainbond's Helm feature.Rainbond supports various Helm deployment methods, and you can choose the most suitable one according to your actual needs.

Preparation​

Before starting the deployment, please ensure the following conditions are met:

Helm repository docking and deployment​

1. Dock Helm repository​

  1. Go to Platform Management → Application Market → Add Helm Store
  2. Fill in the following information:
    • Store name: rainbond
    • Store address: https://chart.rainbond.com
  3. Click Confirm to complete the repository addition

Helm repository configuration

2. Deploy applications through Helm store​

2.1 Access Helm store​

You can access the added Helm store in two ways:

  • Method one: Platform Management → Application Market → Helm Store
  • Method two: In the target team, select New Application → External Application Market → Helm Store

Helm Store

2.2 Deploy Wordpress application​

  1. Search for Wordpress in the Helm store
  2. Click the Install button to start the deployment process

2.3 Application package verification​

Rainbond will automatically perform the following checks:

  • Download the application package from the Helm repository
  • Check the compatibility of the application package version
  • Analyze resources and convert them into Rainbond application model

2.4 Configure Value parameters​

On the Values configuration page, you can:

  • Modify default parameters, such as image.repository=wordpress, image.tag=latest

3. Deploy applications through Helm commands​

If you are familiar with Helm CLI operations, you can choose this method:

  1. Go to the target team, select New Application → Kubernetes YAML/Helm → Helm, choose the Command method

  2. In the command input box, enter the following Helm command:

    helm install wordpress rainbond/wordpress-example

    • wordpress: Specify the name of the application after installation
    • rainbond/wordpress-example: Specify the Chart in the Helm repository

  3. Click Submit to start deployment

4. Deploy applications by uploading Helm packages​

If you have a custom Helm package or need to use a Chart not in the Helm repository, you can choose the upload method:

  1. In the target team, select New Application → Kubernetes YAML/Helm → Helm, choose the Upload method
  2. Click Confirm Creation

Helm upload deployment

Application configuration optimization​

Persistent storage configuration​

Storage resources defined in Helm Chart (such as EmptyDir) can be optimized in Rainbond:

  1. After import, the volumeMounts and volumes configurations in the original Helm Chart will be saved in the component's Other Settings > Kubernetes Properties
  2. For data that needs to be persisted (such as WordPress content and MySQL data), it is recommended to use Rainbond's storage function:
    • Delete the corresponding volumeMounts/volumes entries in Kubernetes properties
    • Go to the component's Storage > Storage Settings > Add Storage
    • Add the corresponding persistent path
      • For example, MySQL's /bitnami/mysql/data.
      • For example, WordPress's /bitnami/wordpress.

Gateway configuration​

After deployment is completed, you need to configure the access entry for WordPress:

  1. Go to the WordPress component details page.
  2. Switch to the Port tab.
  3. Enable External Service for WordPress's HTTP port.

Troubleshooting​

Here are some common problems and solutions you may encounter when deploying WordPress applications:

  • Image pull failure: Check if the image repository address is correct and confirm the network connection is smooth
  • Database connection error: Verify if WordPress's database connection environment variables are correctly configured
  • Insufficient resources: Check if the cluster resources are sufficient and adjust the resource limits appropriately