Manual cluster certificate rotation stuck :'(

[manneym]

This morning i noticed a information banner when looking at an older aks dev cluster (v1.18.14), in the portal. It warned me that the cluster cert was going to expire in 87 days, and i needed to manually rotate the cert.

I had successfully rotated a clusrer cert only a couple of months ago on a slightly younger cluster, i think it wss v1.22.x) and did not have any issue... took about 30 mins to complete so continued.

This time i was not so lucky! Started the rotation via the az cli... it was still sat at tye spinning Running prompt 2-3 hours later.

It seems to have replaced the api certs ok as i can refresh my kubctl connection details and query the cluster objects, but the nodes are not starting back up... i have 2 node pools both with no runnibg nodes.

I have a niggling suspision that when it recreats the nodes ir can no longer find the node image version 1.18.14 as it is no longer a supported version.

The cluster is/was a n old dev cluster, I was actually in the middle of building out a shiny new cluster to replace, but could really do with this one back whilst i continue to work on the new one

Any help/ advice would be kindly appriciated 🙏👍