I'm setting up hosting on the Google Compute Engine with a LEMP stack, and from time to time the need arises to allow a third-party developer access to the server.
To have to explain to every customer service how the gcloud tool installs and configures is simply not done.
I recently found that a simple
ssh user@[ipadress] can work, but I'm not sure what the proper workflow is to add the keys to the VM first.
My question is, what is the best way to manage this? And/or is there a way to just generate a basic FTP user (without any need for SSH keys) to give someone temporary access to the fileserver?