Thanks CDN module, I could set up a remote server as my private cdn for image files, so that all the /files/u*/*.gif&jgp are being severed from the remote server. However I have problem using rsync to synchronize user files between servers.
Here is the script that I use:
#!/bin/bash
RSYNC=/usr/bin/rsync
SSH=/usr/bin/ssh
KEY=/home/webuser/cron/thishost-rsync-key
RUSER=webuser
RHOST=cdn.mysite.com
RPATH=/webroot/cdn/sites/default/files/
LPATH=/webroot/sites/default/files/
$RSYNC --ignore-existing -avh --exclude 'advagg*' --exclude 'css' --exclude 'js' -e "$SSH -i $KEY" $RUSER@$RHOST:$RPATH $LPATH
However the script fails to copy new files uploaded by individual users to the remote server. To cope with this problem, and say copy new files uploaded by user123 to the remote server, I need to specify the path to user's files he script, i.e.
/webroot/cdn/sites/default/files/u123/ &
instead of
/webroot/cdn/sites/default/files/
which is clearly not a solution when there are hundreds of users.
The rsync is supposed to go recursively and copy over files, but it does not behave as expected. I have tried many different rsync flags with no avail and got really frustrated. So appreciate your hints about this.
