Traefik certificate resolver folder/file privilege

I set traefik in docker compose. I create folder acme and give it to certificate Resolvers and in code down. Then traefik creates acme.json.

I see that owner:group is same as owner of folder acme. Is there some restraints in what owner/group of acme folder or file acme.json it needs to be? Because this certificate is used by traefik and mode is 600. So I assume owner is important but it seems to work for any owner I set there.

certificatesResolvers:
  certResolver:
    acme:
      email: "admin@setlog.com"
      storage: "/acme/acme.json"
      httpChallenge:
        entryPoint: "web"