I actually made a slack bot to do this exact thing: https://github.com/ridhoq/ditto. It was a quick side project to learn Elixir so it’s a bit rough around the edge. I'm actually in the process of refactoring to use the new Events API. But it’s been pretty hilarious to see the responses get better and better over time. If anybody is interested and wants to put it on their Slack, I may try to put it in the Slack App directory thing.
We are going to repurchase all of our certs in Digicert this year with which I’ve had a much much better experience. They are well integrated with Azure Key Vault which allows us to automate certificate renewal and our AKS clusters will automatically get the new certs without us doing anything.