As an admin, you can log in as this user. When you’ve finished, you will need to log out and log in again with your own account.

<%= button_to "Log in as #{@object.full_name}", sudo_user_url(id: @object.uuid), class: 'btn btn-primary' %>

As an admin, you can deactivate and reset this user. This will remove all repository/VM permissions for the user. If you "setup" the user again, the user will have to sign the user agreement again.

<%= button_to "Deactivate #{@object.full_name}", unsetup_user_url(id: @object.uuid), class: 'btn btn-primary', confirm: "Are you sure you want to deactivate #{@object.full_name}?"%>