Add a post-rotate hook to restart syslog.

Author: feanil

playbooks/roles/common/templates/etc/logrotate.d/hourly/edx_logrotate.j2

@@ -4,9 +4,13 @@
   copytruncate
   delaycompress
   dateext
+  dateformat -%Y%m%d-%s
   missingok
   notifempty
-  hourly
+  daily
   rotate 90
   size 1M
+  postrotate
+    /usr/bin/killall -HUP rsyslogd
+  endscript
 }