We are running trial license of ManageEngine PAM360 at this moment. We would like to add AWS EC2 (OS:ubuntu 24.04 LTS)with SSH key access only without password.

However, when we try to add user with SSH key, it always prompt for password. We tried to fill with a dummy password for it.

Furthermore, when we try to associate a ssh key with the "ubuntu" user, it always failed. 

After research, we found that "For the SSH key association to be successful, we need the credentials to be correct." from the following link:

Would you please let us know what is the proper procedure to add AWS EC2 linux to ManageEngine PAM360 as resource with ssh key login only ?

Would like to know how to add a new resource type "AWS EC2 (Linux)" which similar to Linux but need ssh key login only.