Hell, even without making the mistake of publishing keys, I've accidentally run up quite large bills for Amazon services; backups that failed to remove old copies was a big one. Instances that were supposed to have been shut down, but for some reason it didn't happen (I don't know if this is my mistake or a bug at Amazon...probably my mistake).
I've simply stopped using Amazon for anything tinkery, because the costs of making mistakes can be tremendous. At least when I make mistakes on my own colocated server, I know it can never cost me more than the $100/month I pay to host it. And, storage is practically infinite (4TB hard disks), and I can spin up more VMs than I would ever need for tinkering in 32GB of RAM on our "spare" server.
And, when I have needed to use VM with some cloud host...Linode and Digital Ocean and similar may have dramatically smaller toolsets for managing virtual resources than Amazon (probably unworkably so for large deployments), but my mind has a much easier time predicting costs than with Amazon. After being surprised on more than one occasion with a ~$300 bill from Amazon (for running nothing but personal pet projects with no economic return), I turned everything off.
I've simply stopped using Amazon for anything tinkery, because the costs of making mistakes can be tremendous. At least when I make mistakes on my own colocated server, I know it can never cost me more than the $100/month I pay to host it. And, storage is practically infinite (4TB hard disks), and I can spin up more VMs than I would ever need for tinkering in 32GB of RAM on our "spare" server.
And, when I have needed to use VM with some cloud host...Linode and Digital Ocean and similar may have dramatically smaller toolsets for managing virtual resources than Amazon (probably unworkably so for large deployments), but my mind has a much easier time predicting costs than with Amazon. After being surprised on more than one occasion with a ~$300 bill from Amazon (for running nothing but personal pet projects with no economic return), I turned everything off.