nginx

# /etc/nginx/sites-available/nginx

# sudo nginx -t
# sudo nginx -s reload

# https://nginx.org/en/docs/http/ngx_http_core_module.html#location
#
#   If a location is defined by a prefix string that ends with the
#   slash character, and requests are processed by one of proxy_pass,
#   fastcgi_pass, uwsgi_pass, scgi_pass, memcached_pass, or grpc_pass,
#   then the special processing is performed. In response to a request
#   with URI equal to this string, but without the trailing slash, a
#   permanent redirect with the code 301 will be returned to the
#   requested URI with the slash appended. If this is not desired, an
#   exact match of the URI and location could be defined like this:
#
#   location /user/ {
#       proxy_pass http://user.example.com;
#    }
#
#   location = /user {
#       proxy_pass http://login.example.com;
#   }

map $http_upgrade $connection_upgrade {
    default upgrade;
    '' close;
}

server {
    listen 80;
    server_name quest.ms.mff.cuni.cz textflow;

    include /etc/nginx/proxy_params;

    absolute_redirect off;
    proxy_buffering off;

    ########

    location /textflow/ {
        proxy_pass http://127.0.0.1:5000;

        location /textflow/send {
            proxy_pass http://127.0.0.1:5000;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
        }
    }

    location /textflow/1/ {
        proxy_pass http://127.0.0.1:5001;

        location /textflow/1/send {
            proxy_pass http://127.0.0.1:5001;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
        }
    }

    location /textflow/2/ {
        proxy_pass http://127.0.0.1:5002;

        location /textflow/2/send {
            proxy_pass http://127.0.0.1:5002;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
        }
    }

    location /textflow/3/ {
        proxy_pass http://127.0.0.1:5003;

        location /textflow/3/send {
            proxy_pass http://127.0.0.1:5003;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
        }
    }

    ########

    location /elitr/ {
        proxy_pass http://127.0.0.1:6000;

        location /elitr/send {
            proxy_pass http://127.0.0.1:6000;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
        }
    }

    location /elitr/sg1/ {
        proxy_pass http://127.0.0.1:6001;

        location /elitr/sg1/send {
            proxy_pass http://127.0.0.1:6001;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
        }
    }

    location /elitr/monday-seminars/ {
        proxy_pass http://127.0.0.1:6002;

        location /elitr/monday-seminars/send {
            proxy_pass http://127.0.0.1:6002;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
        }
    }

    location /elitr/theaitre/ {
        proxy_pass http://127.0.0.1:6003;

        location /elitr/theaitre/send {
            proxy_pass http://127.0.0.1:6003;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
        }
    }

    ########

    location /elitr/debug/ {
        proxy_pass http://127.0.0.1:7000;

        location /elitr/debug/ws {
            proxy_pass http://127.0.0.1:7000;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
        }
    }
}