Expose log_archive via the web server
When I asked hiro last week whether I can take a look at tor logs to investigate slow measurements, she told me that these logs are probably log-rotated away after a day or so.
Can we configure our OnionPerf instances in a way that keeps tor logs forever? It's okay to log-rotate them daily, but if we can keep them around, that might turn out to be very helpful for situations like this.
If forever is too long from a disk space perspective, how about 1 year or at least several months? Info level is probably sufficient.