In Kubernetes 1.9, two taint keys are GA and may required manually
operation during upgrade.
-
Taint key `unreachable` is now in GA.
-
Taint key `notReady` is changed to `not-ready`, and is also now in GA.
For affected users:
-
These changes are automatically updated for taints on nodes.
-
*But Tolerations for these taints must be updated manually*.
Specifically, you must:
-
Change `node.alpha.kubernetes.io/notReady` to
`node.kubernetes.io/not-ready`
-
Change `node.alpha.kubernetes.io/unreachable` to
`node.kubernetes.io/unreachable`
The tracking issue of this break change is:
https://github.com/kubernetes/kubernetes/issues/53236
If you encountered taint/toleration related problem during upgrade, please
feel free to ping me (@resouer) on slack or sig-scheduling
---
Harry Zhang
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