Redirect request to CDN using nginx
You could try using the split clients module:
http { # Split clients (approximately) equally based on # client ip address split_clients $remote_addr $cdn_host { 33% cdn1; 33% cdn2; - cdn3; } server { server_name example.com; # Use the variable defined by the split_clients block to determine # the rewritten hostname for requests beginning with /images/ location /images/ { rewrite ^ http://$cdn_host.example.com$request_uri? permanent; } }}
This is of course possible. Nginx comes with load balancing:
upstream mysite { server www1.mysite.com; server www2.mysite.com;}This defines 2 servers for load balancing. By default requests will be equally distributed across all defined servers. You can however add weights to the server entries.
Inside your server {} configuration you can now add the following to pass incoming requests to the load balancer (e.g. to load balance all requests for the images directory):
location /images/ { proxy_pass http://mysite;}Have a look at the documentation for a more detailed description.