It would be very handy if the UI for adding GCE (Google Compute Engine) projects as a compute resource on foreman was updated to use a file upload field instead of a basic text field. It would allow the user to select the certificate keyfile associated with the authorised Google client ID and upload it directly to foreman instead of having to use an alternative route to get the key onto the foreman server. Foreman would be able to decide where the keys should be kept on the server and make sure the required permissions were applied to the key file and location for security.

Possible Implications:
Additional code & settings to configure the folder location on foreman
Logic to test for required read, write permissions for foreman user