Depending on your scale, this can be made much easier and simpler - just manage the keys using something like ansible. Got a new developer? Push out the key t

Depending on your scale, this can be made much easier and simpler - just manage the keys using something like ansible. Got a new developer? Push out the key to the systems they need access to. Developer leaving? Remove the key from the systems. Configure the ssh server config to not use keys in home dirs.