[IMP] point_of_sale: do more aggresive logrotate on rsyslog logs

/var/log/syslog gets filled up quicker than usual because of all the
crontab logs:
Aug 26 09:29:01 raspberrypi /USR/SBIN/CRON[21223]: (root) CMD (rm /var/run/odoo/sessions/*)

addons/point_of_sale/tools/posbox/overwrite_before_init/etc/init_posbox_image.sh

@@ -56,6 +56,12 @@ sudo -u postgres createuser -s pi
 mkdir /var/log/odoo
 chown pi:pi /var/log/odoo
 
+# logrotate is very picky when it comes to file permissions
+chown -R root:root /etc/logrotate.d/
+chmod -R 644 /etc/logrotate.d/
+chown root:root /etc/logrotate.conf
+chmod 644 /etc/logrotate.conf
+
 echo "* * * * * rm /var/run/odoo/sessions/*" | crontab -
 
 update-rc.d odoo defaults

addons/point_of_sale/tools/posbox/overwrite_before_init/etc/logrotate.d/rsyslog

@@ -0,0 +1,37 @@
+/var/log/syslog
+{
+        rotate 3
+        daily
+        missingok
+        notifempty
+        delaycompress
+        compress
+        postrotate
+                invoke-rc.d rsyslog rotate > /dev/null
+        endscript
+}
+
+/var/log/mail.info
+/var/log/mail.warn
+/var/log/mail.err
+/var/log/mail.log
+/var/log/daemon.log
+/var/log/kern.log
+/var/log/auth.log
+/var/log/user.log
+/var/log/lpr.log
+/var/log/cron.log
+/var/log/debug
+/var/log/messages
+{
+        rotate 3
+        daily
+        missingok
+        notifempty
+        compress
+        delaycompress
+        sharedscripts
+        postrotate
+                invoke-rc.d rsyslog rotate > /dev/null
+        endscript
+}