Accessing a Real-Time Service (VPC Channel)

Context

To access a ModelArts real-time service from an internal VPC node of your account, you can use a VPC channel. By creating an endpoint in your VPC and connecting to the ModelArts VPC endpoint service, you can access the real-time service from your VPC endpoint.

Procedure

To access a real-time service through a VPC channel, perform the following steps:

1. Obtain the ModelArts VPC endpoint service address.
2. Buy and connect to a ModelArts endpoint.
3. Set a VPC access channel for real-time services.
4. Create a private DNS zone.
5. Access a real-time service through VPC.

1. Obtain the ModelArts VPC endpoint service address.
   1. Log in to the ModelArts management console and choose Service Deployment > Real-Time Services.
   2. Click Access VPC. In the displayed dialog box, view the VPC endpoint service address.
      Figure 1 Viewing a VPC endpoint service address
      

2. Buy and connect to a ModelArts endpoint.
   1. Log in to the VPC management console. In the navigation pane, choose VPC Endpoint > VPC Endpoints.
   2. Click Buy VPC Endpoint in the upper right corner.
      • Region: region where the VPC endpoint is located.

        Resources in different regions cannot communicate with each other. The region must be the same as that of ModelArts.

      • Service Category: Select Find a service by name.
      • VPC Endpoint Service Name: Enter the endpoint service address obtained in 1. Click Verify on the right. The system automatically sets VPC, Subnet, and Private IP Address.
      • Create a Private Domain Name: Retain the default setting.
        Figure 2 Buying a VPC endpoint
        
   3. Confirm the specifications, and click Next and then Submit. The VPC endpoint list page is displayed.

3. Set a VPC access channel for real-time services.
   1. Log in to the ModelArts management console. In the navigation pane, choose Service Deployment > Real-Time Services.
   2. Click Access VPC. In the displayed dialog box, select the VPC used in 2. The endpoint ID and endpoint IP address are automatically displayed.
      Figure 3 Selecting VPC
      

4. Create a private DNS zone.
   1. Log in to the DNS console. In the navigation pane on the left, choose Private Zones.
   2. Click Create Private Zone. Set the following parameters:
      • Domain Name: infer-modelarts-<regionId>.myhuaweicloud.com. The current region ID without hyphens (-) is the value of regionId.
      • VPC: VPC selected in Figure 4
        Figure 4 Creating a private zone
        
   3. Click OK.

5. Access a real-time service through VPC.
   1. Use the following API to access a real-time service through VPC:

      https://{Private DNS domain name}/{URL}

      • Private DNS domain name: private domain name set in Figure 4. You can also click Access VPC on the real-time service list page to view the domain name in the displayed dialog box.
      • URL: The URL for a real-time service is the part after the domain name of API URL in the Usage Guides tab of the service details page.
        Figure 5 Obtaining the URL
        
   2. Use GUI-based software, cURL command, or Python to access a real-time service. For details, see Access Authenticated Using a Token.