
Why does the sample compose.yaml for Grafana Loki use three instances of loki? And how do I use local storage instead of minio?
Grafana Loki was recommended to me for centralized logging and so I set up Loki using the provided sample files here: https://grafana.com/docs/loki/latest/setup/install/docker/#install-with-docker-compose but looking at it I don't understand the need for three different Loki containers. Which ones do I actually need? And how do I have Loki use standard filesystem storage instead of minio?