KEP-2221: Removing dockershim from kubelet

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Davanum Srinivas

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Oct 14, 2021, 11:41:40 AM10/14/21
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Folks,

It's still 1.23 cycle right now, but sending out a last call to completely remove dockershim from kubernetes/kubernetes as soon as master opens for 1.24 which seems to be approximately the first week of Dec at this point [2].

as they say "speak now or forever hold your peace" (or switch to [3]).

thanks,
Dims

Davanum Srinivas

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Oct 16, 2021, 8:34:43 AM10/16/21
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Katie and fellow end user representatives!

Can you please pass this along to end users and avoid any last minute surprises?

These may be helpful to set the context:

thanks,
Dims

Sergey Kanzhelev

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Oct 16, 2021, 10:00:01 AM10/16/21
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Hi,

Dockershim removal is important. The deprecation announcement was made
last December and there is a lot of information about it. It would be
great, however, if we can get more information on the migration
progress and plans.


Please fill out and help us distribute this form:

https://forms.gle/svCJmhvTv78jGdSx8


Also there are many other channels to provide feedback on potential
blockers of the dockershim removal, for example those SIG Node comms
channels: https://github.com/kubernetes/community/tree/master/sig-node#contact.

/Sergey
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Justin Cormack

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Oct 16, 2021, 12:41:59 PM10/16/21
to Sergey Kanzhelev, Davanum Srinivas, kgam...@linuxfoundation.org, Alena Prokharchyk, Dave Zolotusky, ricard...@cern.ch, erin...@apple.com, kubernetes-sig-node, kubernetes-...@googlegroups.com
The recent Datadog survey https://www.datadoghq.com/container-report/ suggests that around 6% of organizations are using containerd, while the other 94% are still using Dockershim. So I would guess an amount of handholding will be necessary to help the migration to external Dockershim.

Justin


Mike Brown

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Oct 16, 2021, 5:32:45 PM10/16/21
to Justin Cormack, Sergey Kanzhelev, Davanum Srinivas, kgam...@linuxfoundation.org, Alena Prokharchyk, Dave Zolotusky, ricard...@cern.ch, erin...@apple.com, kubernetes-sig-node, kubernetes-...@googlegroups.com
Definitely some misconceptions in the survey report. Should be more like 6% are configured to use containerd or crio directly for CRI pods and the other 94% are using kubelet’s built in default docker shim which uses docker+containerd…. And all the above can be configured to use both runc compatible and vm workloads. 

That said, agree more handholding docs will be helpful in completing the transition to external CRI implementations.  

Cheers, Mike

Sent from my iPhone

On Oct 16, 2021, at 9:42 AM, 'Justin Cormack' via kubernetes-sig-node <kubernete...@googlegroups.com> wrote:



Ricardo Rocha

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Oct 18, 2021, 2:10:46 AM10/18/21
to Mike Brown, Justin Cormack, Sergey Kanzhelev, Davanum Srinivas, kgam...@linuxfoundation.org, Alena Prokharchyk, Dave Zolotusky, erin...@apple.com, kubernetes-sig-node, kubernetes-...@googlegroups.com
Will pass the form in the channels i know.

https://forms.gle/svCJmhvTv78jGdSx8

Quick feedback on the form - couple questions (version,
self-hosted/gcp/azure/aws/etc) i would need multiple options in our case, it
limits to one selection.
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Katie Gamanji

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Oct 20, 2021, 9:38:59 AM10/20/21
to Ricardo Rocha, Mike Brown, Justin Cormack, Sergey Kanzhelev, Davanum Srinivas, Alena Prokharchyk, Dave Zolotusky, erin...@apple.com, kubernetes-sig-node, kubernetes-...@googlegroups.com
Hello all, 

I have informed the End User mailing list of the dockershim removal and linked the questionnaire. Will let you know if there is any additional feedback.

Thank you,
Katie G. 
----
Ecosystem Advocate, Cloud Native Computing Foundation

Sergey Kanzhelev

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Nov 5, 2021, 1:28:15 AM11/5/21
to Katie Gamanji, Ricardo Rocha, Mike Brown, Justin Cormack, Davanum Srinivas, Alena Prokharchyk, Dave Zolotusky, erin...@apple.com, kubernetes-sig-node, kubernetes-...@googlegroups.com
We only have 17 responses in the form so far. It would be great to collect more information if possible before the December deadline.
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