Will docker natively support CRI ?

[tao12345666333]

Description

Some changes are currently underway in Kubernetes. kubernetes/kubernetes#87746

Docker as a Kubernetes container runtime is supported by in-tree dockershim.

I want to know does Docker consider providing native support for CRI?

xref:

• https://github.com/kubernetes/enhancements/blob/master/keps/sig-node/20200205-build-kubelet-without-docker.md#returning-to-motivation
• Build Kubelet without Docker kubernetes/enhancements#1546

[tao12345666333]

ping @thaJeztah

[cpuguy83]

I don't see this as a worthwhile endeavor.

[AkihiroSuda]

Closing as unlikely to happen

[thaJeztah]

The containerd 1.x project (which was a "reboot" of containerd 0.2, and rewritten from scratch) was designed with kubernetes in mind; taking all the bits that are needed to be useful as a runtime, without the overhead and features that the docker daemon provides (which are useful, but not used when using as a runtime for kubernetes, and as such only "overhead").

So for that reason, we won't implement this in dockerd. We will continue looking at moving parts that are in dockerd to containerd (move image management / storage to containerd), so that there's a more seamless integration with containerd