Comment by llama052
It's awful. Any other service in Azure that relies on the core systems seems to have issues trying to depend on it, I feel for those internal teams.
Ran into an issue upgrading an AKS cluster last week. It completely stalled and broke the entire cluster in a way where our hands were tied as we can't see the control plane at all...
I submit a severity A ticket and 5 hours later I get told there was a known issue with the latest VM image that would create issues with the control plane leaving any cluster that was updated in that window to essentially kill itself and require manual intervention. Did they notify anyone? Nope, did they stop anyone from killing their own clusters. Nope.
It seems like every time I'm forced to touch the Azure environment I'm basically playing Russian roulette hoping that something's not broken on the backend.