Using SWR Enterprise Edition to Implement Cross-Region DR for Self-Built Harbor

Prerequisites

• You have purchased an SWR Enterprise Edition instance. For details, see Buying a Repository.
• You have set up Harbor, and the network between Harbor and SWR Enterprise Edition is connected.
• The custom domain name of the SWR Enterprise Edition instance is the same as the Harbor domain name. For details about how to configure a custom domain name, see Domain Names.

Procedure

1. Synchronize images from Harbor to SWR Enterprise Edition.

1. Create a namespace.
   1. Log in to the SWR console. In the upper left corner, switch to your region.
   2. In the navigation pane, choose Namespaces. In the upper right corner, click Create Namespace.
   3. Enter the name of the target project in Harbor and select the namespace type.
   4. Click OK.

2. Configure the destination image registry on Harbor.
   1. Create a registry endpoint.

      

      Table 1 Parameters for creating a registry endpoint

      Parameter	Description
      Provider	Select Docker Registry.
      Name	Enter a custom name.
      Description	Enter a description as needed.
      Endpoint URL	Enter the domain name of the target SWR Enterprise Edition instance in the format of https://{address-of-of-the-SWR-Enterprise-Edition-instance}. To obtain the address, log in to the SWR console, switch to the target region in the upper left corner of the page. On the displayed page, click the name of the target repository to go to the repository details page. In the Basic Information area of the Dashboard page, obtain the access address.
      Access ID	Username for accessing the instance. You can obtain the username from the table downloaded in Creating a Long-Term Credential.
      Access Secret	Password for accessing the instance. You can obtain the password from the table downloaded in Creating a Long-Term Credential.
      Verify Remote Cert	You are advised to deselect this option.

3. Configure a replication rule.
   1. Choose Administration > Registries and then click NEW ENDPOINT.

      

   2. Configure the parameters.

      

      Table 2 Parameters for creating a replication rule

      Parameter	Description
      Name	Enter a custom name.
      Description	Enter a description as needed.
      Replication mode	Select Push-based. Images are pushed from the local Harbor to the destination registry.
      Source resource filter	Filters images in Harbor based on the configuration. All resources are selected by default.
      Destination registry	Select the registry endpoint created in 2.a.
      Destination	Enter the name of the namespace created in 1. Flattening reduces the registry hierarchy during image replication. You are advised to select Flatten 1 Level.
      Triggering Mode	Select an option as needed. You are advised to select Event Based.
      Bandwidth	Set it to the maximum network bandwidth. –1 indicates that the network bandwidth is not limited.
      Overwrite	If there are resources with the same name, specify whether to overwrite the resources at the destination.

   For more information, see the Harbor official website.

4. Select the replication rule and click REPLICATE to replicate images.

   

2. Configure a custom domain name for remote DR.

The following three scenarios are provided based on the network relationship between Harbor and SWR Enterprise Edition.

Assume that the SWR Enterprise Edition instance is in Guangzhou and the Harbor repository is in Shanghai. The table below describes three example scenarios.