Show Heroku router distribution amongst dynos

router-distribution.sh

brew install angle-grinder

heroku logs -t -d router -a app-name | agrind '*
  | parse regex "(?P<timestamp>\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}\.\d{6})"
  | timeslice(parseDate(timestamp)) 1m as time
  | logfmt
  | count as reqs,
    count(at == "error") as errors,
    avg(connect) as avg_connect,
    avg(service) as avg_service
    by time, dyno
  | sort by time desc, dyno'