events {}

http {
    server {
        listen      80;
        server_name a.com;

        location /checker/ {
            proxy_pass http://polling:7998/checker/;
        }

        location /polling/ {
            proxy_pass http://polling:7998/polling/;
        }

        location /static/ {
            root /var/www/html/static;
        }

        location / {
            proxy_pass http://web:8000/;
        }
    }
}