Upgrade Toolforge Kubernetes to latest 1.20
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	taavi
	Apr 16 2021, 7:11 PM

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Aklapper

taavi

Description

Update to 1.20 after the 1.19 update is complete (see subtask).

Our notes: https://wikitech.wikimedia.org/wiki/Portal:Toolforge/Admin/Kubernetes/Upgrading_Kubernetes
Release notes: https://v1-20.docs.kubernetes.io/docs/setup/release/notes/
https://etherpad.wikimedia.org/p/WMCS-2021-10-12-tools-k8s-upgrade

Highlights:

Docker as a runtime being deprecated, ~~should not matter as according to Puppet manifests we are using containerd~~ filed T284656
Deprecated kubeadm flags and commands being removed, need to check if we're affected
New (beta) feature: API priority/fairness, sounds interesting in a multi-tenant env like ours
Pod presets being removed

Details

Related Changes in Gerrit:

	Subject	Repo	Branch	Lines +/-
	aptrepo: Init thirdparty/kubeadm-k8s-1-20	operations/puppet	production	+14 -3

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Related Objects
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Status	Assigned	Task
Resolved	Raymond_Ndibe	T359641 [infra,k8s] Upgrade Toolforge Kubernetes to version 1.27
		Restricted Task
Resolved	Slst2020	T327025 [infra,k8s] Upgrade Toolforge Kubernetes to version 1.26
Resolved	• aborrero	T316107 [infra,k8s] Upgrade Toolforge Kubernetes to version 1.25
Resolved	• aborrero	T307651 Upgrade Toolforge Kubernetes to version 1.24
Resolved	taavi	T298005 Upgrade Toolforge Kubernetes to version 1.23
Resolved	taavi	T286856 Upgrade Toolforge Kubernetes to latest 1.22
Resolved	• rook	T308172 Upgrade PAWS to Kubernetes 1.21
Resolved	taavi	T282942 Upgrade Toolforge Kubernetes to latest 1.21
Resolved	• rook	T291913 Upgrade PAWS kubernetes to 1.20
Resolved	• rook	T280402 Upgrade Toolforge Kubernetes to latest 1.20
Resolved	taavi	T280340 Upgrade Toolforge Kubernetes to latest 1.19
Resolved	taavi	T280299 Upgrade Toolforge Kubernetes to latest 1.18
Resolved	taavi	T280300 Validate that maintain-kubeusers works with k8s 1.18
Resolved	taavi	T280301 Refresh certs that are not controlled by kubeadm
Resolved	taavi	T280302 Upgrade PAWS Kubernetes to the latest 1.18 release
Resolved	taavi	T264221 Upgrade the nginx ingress controller in Toolforge (and likely PAWS)
Resolved	• Bstorm	T282087 Support cinder or expanded ephemeral disk worker nodes on Toolforge Kubernetes
Resolved	taavi	T284353 Fix prometheus monitoring for Toolforge Ingress
Resolved	taavi	T280342 Upgrade Calico to 3.18
Resolved	taavi	T280360 Update ingress-admission-controller to support Ingress from networking.k8s.io/v1
Resolved	taavi	T279106 Establish replacement for PodPresets in Toolforge Kubernetes
Resolved	• Bstorm	T292672 Issue creating pods after migration away from PodPresets
Declined	None	T290531 Weird issue with the wmcs-k8s-node-upgrade.py script
Resolved	• rook	T291976 Upgrade toolsbeta to k8s 1.20

Event Timeline

taavi created this task.Apr 16 2021, 7:11 PM

taavi triaged this task as Medium priority.

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptApr 16 2021, 7:11 PM

taavi added a subtask: T280340: Upgrade Toolforge Kubernetes to latest 1.19.Apr 16 2021, 7:11 PM

taavi added a subtask: T279106: Establish replacement for PodPresets in Toolforge Kubernetes.Apr 17 2021, 8:43 AM

taavi updated the task description. (Show Details)

taavi added a parent task: T282942: Upgrade Toolforge Kubernetes to latest 1.21.May 15 2021, 11:40 AM

taavi closed subtask T280340: Upgrade Toolforge Kubernetes to latest 1.19 as Resolved.Jul 26 2021, 5:34 PM

• Bstorm added a subtask: T290531: Weird issue with the wmcs-k8s-node-upgrade.py script.Sep 7 2021, 10:22 PM

Change 724365 had a related patch set uploaded (by Majavah; author: Majavah):

[operations/puppet@production] aptrepo: Init thirdparty/kubeadm-k8s-1-20

https://gerrit.wikimedia.org/r/724365

gerritbot added a project: Patch-For-Review.Sep 28 2021, 10:23 AM

Change 724365 merged by Arturo Borrero Gonzalez:

[operations/puppet@production] aptrepo: Init thirdparty/kubeadm-k8s-1-20

https://gerrit.wikimedia.org/r/724365

taavi mentioned this in T291913: Upgrade PAWS kubernetes to 1.20.Sep 28 2021, 10:42 AM

taavi added a parent task: T291913: Upgrade PAWS kubernetes to 1.20.

Maintenance_bot removed a project: Patch-For-Review.Sep 28 2021, 11:10 AM

Mentioned in SAL (#wikimedia-operations) [2021-09-28T11:29:03Z] <arturo> cleanup unused repo component buster-wikimedia|thirdparty/kubeadm-k8s-1-18 (T280402)