What host paths do I need to mount to use docker_sd_config in promtail running in a container?

Hello,

I’m testing out promtail in a container, to scrape host logs; I’d like to know which paths docker_sd_config needs to be bind mounted from the host, in order to scrape logs about containers. Sort of analogous to how you have to mount /etc/macine-id into the container for the syslog scrape config.

I can guess that /var/run/docker needs to be bind mounted, read-only, but I’m unsure as to what else does. I didn’t find anything about this in the docs: Configuration | Grafana Loki documentation

c.f. the paths that cadvisor needs mounted: GitHub - google/cadvisor: Analyzes resource usage and performance characteristics of running containers.

Thanks for all the work you do!