Here's a list of things from January of this year:
- when scaling nodes, didn't get the desired count
- creating and deleting clusters takes a while (30 minutes)
- cluster operations get stuck in a loop
- disappearing node did not bring up a new node
- external management setup was difficult (GKE assigns publicly reachable IP by default)
- changing SSH user or key through azcli or GUI didn't work
- default storage class wasn't set
- admission control disallows deploying a registry in kube-system
- nodes randomly go into notready state
- no ability to add new node pools or modify pool without destroying cluster
