static caching nginx

[svd01]

Example configuration with nginx caching:

http {
    ...
    proxy_cache_path /data/nginx/cache keys_zone=one:10m loader_threshold=300 
                     loader_files=200 max_size=200m;

    server {
        listen 8080;
        proxy_cache one;

        location / {
            proxy_pass http://backend1;
        }

        location /some/path {
            proxy_pass http://backend2;
            proxy_cache_valid any 1m;
            proxy_cache_min_uses 3;
            proxy_cache_bypass $cookie_nocache $arg_nocache$arg_comment;
        }
    }
}

In this example, two locations use the same cache but in different ways.

Because responses from the backend1 server rarely change, no cache-control directives are included. Responses are cached the first time a request is made, and remain valid indefinitely.

By contrast, responses to requests served by backend2 change frequently, so they are considered valid for only 1 minute and aren’t cached until the same request is made 3 times. Moreover, if a request matches the conditions defined by the proxy_cache_bypass directive, NGINX Plus immediately passes the request to backend2 without looking for it in the cache.