Container Service for Kubernetes:Simplify application deployment with Helm

Create a Helm application

This topic uses the deployment of a Dify application from the ACK console as an example. Ensure your ACK cluster has at least 2 vCPU cores and 4 GB of memory available.

1. Create the Container Network File System (CNFS) and Network Attached Storage (NAS) StorageClasses dependencies for Dify.

   1. Log on to the ACK console and navigate to the Clusters page. Click the name of your target cluster, then choose Volumes > StorageClasses from the left navigation pane.

   2. On the StorageClasses page, click Create from YAML. Copy the following YAML manifest into the template, then click Create.

      If the system reports that a resource with the same name already exists, it means the required CNFS and NAS StorageClasses have been automatically created. You can proceed to deploy the application. Creating a NAS file system incurs fees. For details, see NAS billing.

      apiVersion: storage.alibabacloud.com/v1beta1
      kind: ContainerNetworkFileSystem
      metadata:
        name: cnfs-nas-filesystem
      spec:
        description: "cnfs"
        type: nas
        reclaimPolicy: Retain  # Only Retain is supported. Deleting the CNFS will not delete the backend NAS instance.
      ---
      apiVersion: storage.k8s.io/v1
      kind: StorageClass
      metadata:
        name: alibabacloud-cnfs-nas
      mountOptions:
        - nolock,tcp,noresvport
        - vers=3
      parameters:
        volumeAs: subpath # Each persistent volume claim (PVC) will create a separate subdirectory in the NAS file system.
        containerNetworkFileSystem: cnfs-nas-filesystem # Associates with the CNFS instance defined above.
        path: "/"
      provisioner: nasplugin.csi.alibabacloud.com
      reclaimPolicy: Retain
      allowVolumeExpansion: true # Optional: Set to true to allow volume expansion for directory quotas.

2. Deploy the Dify application.

   On the cluster details page, choose Applications > Helm from the left navigation pane. On the Helm page, click Deploy.

   • Basic Information: In the Chart section, search for ack-dify and select it from the results.

   • Parameters: For Chart Version, select the latest version.

3. Access the Dify application.

   1. Expose the ack-dify service to the public Internet.

      Public access is convenient for demonstration purposes. For production environments, it is strongly recommended to use access control to secure your application data.

      Navigate to Network > Services and select the dify-system namespace. Find the service named ack-dify, click Update, configure the following settings, and click OK.

      • Service Type: click SLB.

      • Access Method: select Public Access.

      • VSwitch: select the appropriate vSwitches for the availability zones in your virtual private cloud (VPC).

   2. Access the Dify application.

      Once the configuration is complete, copy the External IPaddress and paste it into your browser's address bar to access the Dify service.

Manage Helm applications

On the Helm page in the console, you can manage your deployed applications.

FAQ

References

• To ensure cluster security and access the latest features, we recommend you migrate from Helm V2 to Helm V3.

• The Helm Chart feature in Container Registry Enterprise Edition supports pushing and pulling Helm Charts.