Hi!
My env:
• Rancher 2.8.5
• Downstream cluster RKE2 v1.26 running on VMs
I plan to do an upgrade of downstream cluster to the v1.27 changing version in Rancher UI.
In update strategy I enabled nodes drain.
Is there a way to add delay between worker nodes upgrade as there is a chance for the deployments to not have all there pods rescheduled on a different nodes due to lack of time?
Lets say one node is being drained before upgrade and it has different pods.
Such pods will be rescheduled on a different nodes, However worker node drain may take less time than new pods will become ready on a different nodes.
And when number or nodes that were upgraded will grow - the chance of not ready pods may be increased and lead to unavailability for some deployments.