Switching Mirror Sources When Downloading Images from Domestic Mirrors Fails

Due to the domestic network environment, Docker image downloads often encounter issues such as failures and timeouts.

The default image acceleration only supports the official docker.io registry and cannot accelerate other commonly used foreign registries like ghcr.io, gcr.io, and k8s.gcr.io. To improve the speed of pulling Docker images, you can utilize certain mirror acceleration sources. These accelerators help you fetch required images from Docker Hub more quickly through proxy or caching mechanisms. However, since most of these accelerators are not professional mirror sites, their stability and availability may have certain limitations.

The following guide will show you how to configure additional registry mirrors and acceleration source addresses.

Currently Available Docker Image Acceleration Sources：

1. https://docker.1ms.run

2. https://docker.m.daocloud.io

3. https://dockerhub.anzu.vip

4. https://docker.chenby.cn

Note: After using other mirror accelerator addresses or mirror sources, the image pull speed may still be slow due to the following possible reasons:

1. Server Load: The servers of the mirror acceleration source may be under heavy load due to high user traffic, resulting in slower download speeds.
2. Network Environment: Your local network may have bottlenecks, such as insufficient bandwidth or high latency.
3. Geographical and Routing Factors: The accelerator servers may be located far from your physical location, or the network route between your ISP and the accelerator may be of poor quality.
4. Accelerator Compatibility: Some mirror accelerators may not be fully compatible with the Docker version you are using or with specific images, leading to suboptimal performance.

How to Configure Docker Image Acceleration Sources?

Open the Cyber Cloud Space APP -> Docker -> App Settings -> Registry 1.

Click "Add Speed Source" to add multiple image accelerator source addresses, then submit.

After submission, a prompt will appear indicating that the operation was successful.

How to Add a New Image Registry and Its Mirror Accelerator Source Address?

Taking the addition of the ghcr.io registry as an example, open the Cyber Cloud Space APP -> Docker -> App Settings, and click "Add New".

Turn on the "Custom Accelerator Source" option switch. In the "Docker Registry" field, enter the proxy source registry address. In the "Speed Source 1" field, enter the image accelerator source address. Click "Add Speed Source" to add multiple image accelerator source addresses, then submit.

After submission, a prompt will appear indicating that the operation was successful, and the new registry will be displayed in the image repository list.