nginx proxy example

nginx-proxy.conf

# https://www.scalescale.com/tips/nginx/nginx-proxy-cache-explained-2/
proxy_cache_path /var/lib/nginx/cache levels=1:2 keys_zone=my_diskcached:10m max_size=5g inactive=45m use_temp_path=off;

server {
    listen 80;
    set $cache_uri $uri;
    server_name example.com;
    
    location ~ /purge(/.*) {
        proxy_cache_purge my_diskcached acme.mycachedefault$uri$is_args$args;
    } 
    
    # default fallback proxy
    # set cache for 24 hours
    location / {
        gzip on;
        gzip_min_length 100;
        gzip_types text/plain text/xml application/xml text/css text/javascript application/javascript application/x-javascript text/x-component application/json application/xhtml+xml application/rss+xml application/atom+xml application/vnd.ms-fontobject image/svg+xml application/x-font-ttf font/opentype application/octet-stream;
        gzip_comp_level 1;
        gzip_disable "MSIE [1-6]\.";
        expires 24h;

        # ProxySettings 
        proxy_set_header Host your-origin-hostname.com;
        proxy_hide_header access-control-allow-origin;
        add_header Access-Control-Allow-Origin "*";
        add_header X-Cache $upstream_cache_status;
        
        proxy_cache_lock on;
        proxy_cache_lock_timeout 60s;
        proxy_set_header X-Forwarded-For $remote_addr;
        proxy_hide_header X-Cache;
        proxy_ignore_headers Vary;
        proxy_ignore_headers Expires;
        proxy_ignore_headers Set-Cookie;
        proxy_ignore_headers Cache-Control;

        proxy_pass http://your-origin-hostname.com;
        proxy_pass_header P3P;
        proxy_cache_min_uses 2;
        proxy_cache my_diskcached;
        proxy_cache_valid 200 24h;
        proxy_cache_key acme.mycachedefault$uri$is_args$args;
        # END ProxySettings
    }
    
    # resize proxy with cache of 12 hours
    location ~ /resize/(.*) {                          
      gzip on;
      gzip_min_length 100;
      gzip_types text/plain text/xml application/xml text/css text/javascript application/javascript application/x-javascript text/x-component application/json application/xhtml+xml application/rss+xml application/atom+xml application/vnd.ms-fontobject image/svg+xml application/x-font-ttf font/opentype application/octet-stream;
      gzip_comp_level 1;
      gzip_disable "MSIE [1-6]\.";
      expires 12h;                  

      # ProxySettings 
      proxy_set_header Host imageproxy.example.com;
      proxy_hide_header access-control-allow-origin;
      add_header Access-Control-Allow-Origin "*";      
      add_header X-Cache $upstream_cache_status;
      
      proxy_cache_lock on;
      proxy_cache_lock_timeout 60s;
      proxy_set_header X-Forwarded-For $remote_addr;
      proxy_hide_header X-Cache;
      
      proxy_ignore_headers Vary;
      proxy_ignore_headers Set-Cookie;
      proxy_ignore_headers Expires;
      proxy_ignore_headers Cache-Control;
      
      proxy_pass http://imageproxy.example.com:4593/$1?$args;
      proxy_pass_header P3P;
      proxy_cache_min_uses 2;
      proxy_cache my_diskcached;
      proxy_cache_valid 200 12hr;
      
      proxy_cache_key acme.mycachedefault$uri$is_args$args;
      # END ProxySettings
    }
}

Now go make your own CDN.