Step 1: Create a VPC Endpoint Service

Scenarios

To enable communications across two VPCs, you first need to configure a cloud resource (backend resource) in one VPC as a VPC endpoint service.

This section uses an elastic load balancer as an example backend service to describe how to create a VPC endpoint service.

Prerequisites

There are available backend resources in the same VPC.

Procedure

  1. Log in to the management console.
  2. Click in the upper left corner and select the required region and project.
  3. Choose Service List > Networking > VPC Endpoint.
  1. In the navigation pane on the left, choose VPC Endpoint > VPC Endpoint Services, and click Create VPC Endpoint Service.

    The Create VPC Endpoint Service page is displayed.

    Figure 1 Create VPC Endpoint Service

  2. Configure the required parameters.
    Table 1 Required parameters

    Parameter

    Description

    Region

    Specifies the region where the VPC endpoint service is deployed.

    Resources in different regions cannot communicate with each other over internal networks. Select the nearest region for lower network latency and faster access to resources.

    Name

    This parameter is optional.

    Specifies the name of the VPC endpoint service.

    The name can contain a maximum of 16 characters, including letters, digits, underscores (_), and hyphens (-).

    • If you do not enter a name, the system automatically generates a name in the region.service_id format, for example, eu-de.69e93219-e3ad-43b9-8416-9d788319ac9f.
    • If you enter a name, the system automatically generates a name in the region.Name.service_id format, for example, eu-de.test.e9c186ca-99e4-4a88-9011-8898f1d680c0.

    VPC

    Specifies the VPC where the VPC endpoint service is deployed.

    Service Type

    Specifies the type of the VPC endpoint service. The type can only be Interface.

    Connection Approval

    Specifies whether the connection between a VPC endpoint and a VPC endpoint service requires approval from the owner of the VPC endpoint service.

    You can determine whether to enable or disable the connection approval.

    If connection approval is enabled, any VPC endpoint for connecting to the VPC endpoint service needs to be approved. For details, see step 7.

    Port Mapping

    Specifies the protocol and ports used for communications between the VPC endpoint service and VPC endpoint. The protocol is TCP.

    • Service Port: A service port is provided by the backend service bound to the endpoint service.
    • Terminal Port: A terminal port is provided by the VPC endpoint, allowing you to access the VPC endpoint service.

    The service and terminal port numbers range from 1 to 65535. A maximum of 50 port mappings can be added at a time.

    NOTE:

    Accessing a VPC endpoint service from a VPC endpoint is to access the service port from the associated terminal port.

    After a port mapping is added, it cannot be modified or deleted.

    Backend Resource Type

    Specifies the type of the backend resource that provides services to be accessed.

    The following backend resources are supported:

    • Elastic load balancer: Backend resources of this type suit services that receive high access traffic and demand high reliability and disaster recovery (DR) performance.
    • ECS: Backend resources of this type serve as servers.
    • BMS: Backend resources of this type serve as servers.
    Example: Elastic load balancer
    NOTE:

    For the security group associated with the backend resource configured for the VPC endpoint service, add an inbound rule, with the source IP address set to 198.19.128.0/17. For details, see Adding a Security Group Rule in the Virtual Private Cloud User Guide.

    Load Balancer

    When Backend Resource Type is set to Elastic load balancer, select the load balancer that provides services from the drop-down list.

    NOTE:

    If an elastic load balancer is used as the backend resource, the source IP address received by the VPC endpoint service is not the real address of the client.

    Tag

    This parameter is optional.

    Specifies the VPC endpoint service tag, which consists of a key and a value. You can add a maximum of 20 tags to each VPC endpoint service.

    Tag keys and values must meet requirements listed in Table 2.

    NOTE:

    If a predefined tag has been created on TMS, you can directly select the corresponding tag key and value.

    For details about predefined tags, see Predefined Tag Overview.
    Table 2 Tag requirements for VPC endpoint services

    Parameter

    Requirement

    Tag key
    • Cannot be left blank.
    • Must be unique for each resource.
    • Can contain a maximum of 36 Unicode characters.
    • Can contain only letters, digits, hyphens (-), and underscores (_).

    Tag value
    • Cannot be left blank.
    • Can contain a maximum of 43 Unicode characters.
    • Can contain only letters, digits, hyphens (-), and underscores (_).
  3. Click Create Now.
  4. Click Back to VPC Endpoint Service List to view the newly-created VPC endpoint service.
  5. In the VPC endpoint service list, locate the target VPC endpoint service and click its name to view the details.
    Figure 2 Summary of the VPC endpoint service

Parent topic: Configuring a VPC Endpoint for Communications Across VPCs of the Same Domain