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Docker uses containerd.

Here's an image straight from a blog post from last year: https://i1.wp.com/blog.docker.com/wp-content/uploads/2018/09...

https://blog.docker.com/2018/09/join-the-beta-for-docker-eng...

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It does and it doesn't. The interface is pretty different. Using containerd directly as a binary is pretty rough around the edges, but docker uses it as a library. In particular the CRI implementation works, but leaves a lot to be desired. Their release cycle is also pretty lengthy, such that each minor release has a ton of changes, resulting in a lot of work to integrate into your infra.

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