I would like to add a Google user on the Compute Engine project and give him a SSH (root and non-root) access from the web-browser on my Debian 9 VM.
I already invited and set the 'Compute Engine Administrator' role on the user, but it still doesn't work. When he tries to connect, he have an error like "keys transfer to metadata of the project is particularly long, you can transfer them to the instance metadata to gain time, ..."