user www-data;
worker_processes auto;

pid /var/run/nginx.pid;

events {
  worker_connections 1024;
  use epoll;
}

http {
    proxy_cache_path  /vault/npm-nginx-cache  levels=1:2 keys_zone=STATIC_NPM:10m inactive=24h  max_size=1g;

    proxy_cache_use_stale error timeout http_500 http_502 http_503 http_504;
    proxy_cache_lock on;

    access_log /dev/stdout;
    error_log /dev/stdout;

    gzip on;
    gzip_types application/json text/css text/javascript;
    gzip_proxied any;
    gzip_vary on;

    sendfile on;
    tcp_nodelay on;
    tcp_nopush off;
    client_max_body_size 10G;

    reset_timedout_connection on;
    server_tokens off;
    keepalive_timeout  65;

    include /etc/nginx/mime.types;

    upstream registry_npm {
        server registry.npmjs.org;
        server registry.npmjs.org;
        keepalive 128;
    }

    server {
        listen 80;
        server_name _;
        client_max_body_size 10G;
        merge_slashes off;
        rewrite (.*)//(.*) $1/$2 permanent;

        location /repository/npm-proxy/ {
            proxy_set_header Accept-Encoding "";
            sub_filter_types "application/json";
            sub_filter "https://registry.npmjs.org" $scheme://$host/repository/npm-proxy;
            sub_filter_once off;
            proxy_pass             http://registry_npm/;
            proxy_set_header       Host registry.npmjs.org;
            proxy_buffers 16 16k;
            proxy_buffer_size 16k;
        }

        location ~ ^/.+/-/.+ {
            proxy_pass             http://registry_npm;
            proxy_set_header       Host registry.npmjs.org;
            proxy_buffering        on;
            proxy_cache            STATIC_NPM;
            proxy_cache_valid      any 1d;
            proxy_cache_use_stale  error timeout invalid_header updating
                                   http_500 http_502 http_503 http_504;
            proxy_hide_header Set-Cookie;
            proxy_hide_header Expect-CT;
            proxy_ignore_headers Set-Cookie;
        }
  }
}