On my GitHub configuration there are some SSH keys. One from my personal computer. One from job computer. One from my parents computer and so on. Now, ... that I am starting again a new configuration "session", I am in front of a Vagrant machine. I can create ssh keys and paste it to GitHub. But, ... I already have ssh keys in my HOST. How can I provide unique personal key for my own vagrants? Can I create my personal key? Obviously, ... I don't want a public share of this key. Which are best practices for this? If I share my vagrant machine, ... how can other developers fix SSH keys with their keys?
Finally, ... how is possibile to automate the provisioning of SSH keys inside a vagrang machine?