Overview

CCE provides a console for managing Helm charts, helping you easily deploy applications using the charts and manage applications on the console. CCE uses Helm v3.8.2 and supports the upload of Helm v3 chart packages. For details, see Deploying an Application from a Chart.

You can also use the Helm client to directly deploy applications. If you use the Helm client to deploy applications, version control is not supported. You can use Helm v2 or Helm v3. For details, see Deploying an Application Through the Helm v2 Client and Deploying an Application Through the Helm v3 Client.

Helm

Helm is a package manager for Kubernetes and manages charts. A Helm chart is a series of YAML files used to encapsulate native Kubernetes applications. When deploying an application, you can customize some metadata of the application for easy application distribution. Application releasers can use Helm to package applications, manage application dependencies and application versions, and release applications to the software repository. After using Helm, users do not need to compile complex application deployment files. They can easily search for, install, upgrade, roll back, and uninstall applications on Kubernetes.

The relationship between Helm and Kubernetes is as follows:

Helm <–> Kubernetes
Apt <–> Ubuntu
Yum <–> CentOS
Pip <–> Python

The following figure shows the solution architecture:

Helm can help application orchestration for Kubernetes:

Manages, edits, and updates a large number of Kubernetes configuration files.
Deploys a complex Kubernetes application that contains a large number of configuration files.
Shares and reuses Kubernetes configurations and applications.
Supports multiple environments with parameter-based configuration templates.
Manages the release of applications, including rolling back the application, finding differences (using the diff command), and viewing the release history.
Controls phases in a deployment cycle.
Tests and verifies the released version.