server {

    server_name localhost ;
    listen 80 ;

    location / {
        root /usr/share/nginx/html ;
        try_files $uri $uri/ /index.html ;
    }

    # nb: we access the backend server via the network bridge that docker-compose creates for us
    location /api {
        proxy_pass http://flask:5000 ;
        rewrite ^/api/(.*) /$1 break ;
        # NOTE: The frontend and backend containers will be running on the same host. If we can't connect
        # within a few seconds, something's wrong and there's nothing to be gained by having longer timeouts.
        proxy_connect_timeout 10 ;
        proxy_read_timeout 10 ;
        proxy_send_timeout 10 ;
    }

    location /user {
        proxy_pass http://flask:5000 ;
        rewrite ^/user/(.*) /user-files/$1 break ;
    }

    error_page 500 502 503 504 /50x.html ;
    location = /50x.html {
        root /usr/share/nginx/html ;
    }

}