Introduction

In Kubernetes clusters, when services are frequently released or scaled, nodes usually pull images directly from remote image registries. This not only increases the load on the image registry but also makes it susceptible to rate limits from public registries like DockerHub, resulting in slow or even failed image pulls. Spegel is designed to solve these problems by caching images locally on nodes, accelerating image distribution, and improving cluster deployment efficiency.

However, Spegel currently only supports Containerd. If you are using Docker, you can ignore the following content.