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Upgrade calico to 3.21
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We're currently on Calico 3.18, which supports Kubernetes 1.18 - 1.20. As of writing, the latest Calico version, 3.21, supports 1.20 - 1.22. We should upgrade Calico before upgrading to Kubernetes 1.21.

Event Timeline

Majavah renamed this task from Upgrade calico to 3.20 to Upgrade calico to 3.21.Thu, Nov 11, 8:49 AM
Majavah updated the task description. (Show Details)

Change 738179 had a related patch set uploaded (by Majavah; author: Majavah):

[operations/puppet@production] kubeadm: Upgrade Calico to v3.21.0

Mentioned in SAL (#wikimedia-cloud) [2021-11-16T12:31:48Z] <majavah> uploading calico 3.21.0 to the internal docker registry T292698

Mentioned in SAL (#wikimedia-cloud) [2021-11-16T12:37:47Z] <majavah> testing calico 3.21 upgrade T292698

I tested this on toolsbeta and it works fine (after remembering to upgrade the required hiera value). As before, there's no interruption to existing traffic flows.