Lost an important IP because it wasn't elastic
I don't have a query or anything, it's already lost and I made peace with it.
I needed more computing so I changed the instance type, then when I reboot I notice the IP change. I check, and indeed, no Elastic IP was associated and so the previous public IP is gone to the pool, never to be seen again.
So now I can only mourn it as I spend the next few hours emailing clients who were using it instead of the domain it had associated (Because of course) to allow it again.
I'll miss that IP.