Nginx caching proxy conf

nginx.conf

# keys_zone is STATIC
proxy_cache_path /tmp/nginx/cache levels=1:2 keys_zone=STATIC:50m inactive=365d max_size=1g;

server {
    listen *:80;
    server_name proxy.localhost;

    location / {
        proxy_cache_methods GET POST;
        proxy_cache            STATIC; # keys zone name
        proxy_cache_valid      200 400 401 402 403 404 365d;
        proxy_cache_key        "$request_method|$request_uri|$request_body";

        proxy_buffering        on;
        proxy_set_header       Host "host.example.com";
        proxy_http_version     1.1;

        proxy_ignore_headers    Set-Cookie;
        proxy_ignore_headers    Cache-Control;
        proxy_ignore_headers    Expires;

        #proxy_hide_header       Set-Cookie Cache-Control Expires;

        add_header             X-Cache-Status $upstream_cache_status always;

        proxy_pass             https://0.0.0.0; # nslookup "host.example.com"
    }
}