nginx.conf

#
# nginxの設定例
#
# - Debianの場合は, /etc/nginx/sites-available/default にそのまま置けば動くはず
#
map $http_upgrade $connection_upgrade {
        default upgrade;
        ''  close;
}

server {
        listen 80;
        listen [::]:80;

        server_name _;

        location / {
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header X-Forwarded-Host $host;
                proxy_set_header X-Forwarded-Server $host;
                proxy_set_header X-Forwarded-Proto $scheme;
                proxy_set_header Host $http_host;

                # WebSocketの設定
                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection $connection_upgrade;

                proxy_pass http://localhost:8001;
        }
}