Garie runs Chronograf against the InfluxDB database.
After you have Garie running if you go to http://localhost:8888 you will be shown the Chronograf dashboard.
Make sure you setup the
Connection String to point to
http://influxdb:8086 as seen in the photo below.
Once setup, click on the icon on the left
You should then been shown a screen that allows you to view all the data in the InfluxDB database, for example you should be able to see lighthouse, pagespeed-insights and browsertime data in the database.
If you are interesting in reading more about chronograf make sure you checkout the docs.