worker_processes 1;
daemon off;

events { worker_connections 1024; }

http {
    types_hash_max_size 4096;

    include    /etc/nginx/mime.types;

    sendfile on;

    # no auth
    server {

        server_name localhost;

        listen 80;

        root /tmp/shared/images;

        location / {
            autoindex on;
            autoindex_format json;
        }
    }
    # auth
    server {

        server_name localhost;

        listen 81;

        root /tmp/shared/images;

        auth_basic "auth test";
        auth_basic_user_file /etc/nginx/htpasswd;

        location / {
            autoindex on;
            autoindex_format json;
        }
    }
}