In mainland China, the Great Firewall (GFW) complicates the process of pulling Docker images, necessitating the use of mirror registries. This is particularly relevant for Kubernetes clusters running in regions like Aliyun. The author faced challenges due to restrictions and outdated versions of Kubernetes and containerd. They found a method to configure mirror registries for Docker without altering their Kubernetes configurations, ensuring the same setup can be maintained for use externally. By creating a specific file for containerd hosts mapping, they could successfully set up an accessible mirror for Docker images.
To work around the Great Firewall (GFW) in mainland China, using mirror registries is necessary to pull Docker images without changing Kubernetes config files.
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