Promtail static_configs best practice for multiples paths

Hi,

is there any best practice for using static_configs for multiple files. I want to tail multiple logfiles from various locations.

This one works:

scrape_configs:
- job_name: grafana
  entry_parser: raw
  static_configs:
  - targets:
      - localhost
    labels:
        __path__: var/log/{loki,promtail}.log
        job: omd

But it does not work when i try to include folders like:

__path__: var/log/{loki,promtail,grafana/grafana}.log

Promtail simply ignores that entry completly.