This post is short but hopefully useful. When you start the Foglight server and navigate to the home page URL (http://foglight_server:8080 or https://foglight_server:8443), you may see a startup splash page (below). If you see a login page, then the Foglight server has started and is ready to use.
You may wonder what the startup process is doing. Or not. If you're in the former group, you can click the lower part of the screen, and get a "tail" of the Foglight server log file.
This way you can watch the startup without having to go back to the server and manually view the log.