Running Loki using Docker: Error 404 page not found

I am trying to setup a Loki server to receive logs; but it seems I can not get it running

I tried many variations, with and without config file and mounts, and even with the simple command below:

docker run -p 3100:3100  grafana/loki:1.4.1 

When I go to http://localhost:3100/ or http://localhost:3100/health I get error 404 page not found
But localhost:3100/ready says Ready

How do I get Loki to work and do basic troubleshooting on whats logs are coming in (I am trying to use grafana/fluent-plugin-loki:master)