Tencent Container Registry (TCR) allows users to create replicas of a premium instance in multiple regions with the same access domain name and credential as the original premium instance. It realizes the single-region upload, multi-region high-speed real-time synchronization, and image pulling from the nearest region over the private network. Compared with the cross-instance synchronization, this feature can unify the publish configuration of multi-regional clusters, improve the cross-region synchronization speed of cloud native artifacts, and help users realize the global synchronization update of service applications.
The instance replication feature allows users to create replicas of a premium instance in multiple regions. The replica instances will synchronize data with the primary instance in real time. Users can use the domain name and access credentials of the primary instance to access the replica instances through the private network. By using the instance replication feature, users can uniformly manage the application images of the multi-regional services, and do not need to purchase multiple Enterprise Edition instances, which can reduce the usage cost, increase the speed of container image distribution, and simplify the deployment and configuration.
Before creating and managing the replica instance of a TCR Enterprise Edition instance, complete the following preparations:
You can delete the replication instances that are no longer needed in the specified region. If a premium instance has configured the replica instances, you need to delete all the replica instances first to delete the premium instance.
After configuring a replica instance, if you push an image to the primary instance, the image data will be automatically replicated to the replica instance.
You can also use the
CreateReplicationInstance API to create a replica instance. For more information, see CreateReplicationInstance.