TA ssh key is only readable by root

[romain-jacob]

Currently, when the mini-internet is built, the ssh key located in /groups is only readable by root, hence is only usable to ssh into the student containers using sudo.

I find it a bit odd and easy to fix. But I wonder: is there a (security?other?) reason behind it?

[NotSpecial]

I don't believe there is any particular reason for it, we usually never use the key on the server itself. On the server itself, most actions are easier to perform using docker exec.

So usually we share this key via chat with the assistants, so the permission issue doesn't really come up.