possible to logrotate rails app with nginx passenger without restart?

Question

It is possible to do logrotate without restarting nginx (just send USR1 signal to nginx it will do the job). I wonder it is possible for my rails app (nginx passenger). It's not worth to restart my rails apps just to do a logrotate.

Answer 1

logrotate configuration is pretty simple to get this down

/path/to/rails_apps/*/shared/log/*.log {
  daily
  missingok
  rotate 30
  compress
  delaycompress
  copytruncate
}

the copytruncate basically copies the content to new file and truncates the old file. this eliminates the need for restart.