websocket with nginx and ssl

default.conf

    upstream websocket {
        server 127.0.0.1:8080;
    }

server {

        index index.html index.htm index.nginx-debian.html;

        server_name shodan.onutotrip.ru;

        location / {
            proxy_pass http://websocket;
            proxy_http_version 1.1;
            proxy_set_header Host $host:$server_port;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";
            #proxy_set_header Connection $connection_upgrade;
        }


    listen [::]:443 ssl ipv6only=on; # managed by Certbot
    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/shodan.onutotrip.ru/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/shodan.onutotrip.ru/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot

}


server {
    if ($host = shodan.onutotrip.ru) {
        return 301 https://$host$request_uri;
    } # managed by Certbot


        listen 80 default_server;
        listen [::]:80 default_server;

        server_name shodan.onutotrip.ru;
    return 404; # managed by Certbot


}