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

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

	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
Open	None	T362869 [k8s,infra] Upgrade Toolforge to Uwubernetes (1.30)
Open	None	T362868 [infra,k8s] Upgrade Toolforge Kubernetes to version 1.29
Open	None	T362867 [infra,k8s] Upgrade Toolforge Kubernetes to version 1.28
Open	None	T359641 [infra,k8s] Upgrade Toolforge Kubernetes to version 1.27
Open	None	T327025 [infra,k8s] Upgrade Toolforge Kubernetes to version 1.26
Open	None	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 triaged this task as Medium priority.Apr 16 2021, 7:11 PM

• taavi created this task.

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)