server {
        listen 80;
        listen [::]:80;
        server_name logs.mydomain.com;
        return 301 https://$server_name$request_uri;
}

server {
        listen 443 ssl http2;
        listen [::]:443 ssl http2;
        server_name logs.mydomain.com;

        large_client_header_buffers 4 16k;

        location / {
                proxy_set_header    Host $http_host;
                proxy_set_header    X-Forwarded-Host $host;
                proxy_set_header    X-Forwarded-Server $host;
                proxy_set_header    X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header    X-Graylog-Server-URL https://logs.mydomain.com/api;
                proxy_pass          http://127.0.0.1:9000;
        }

        error_page 502 /502.html;
        location /502.html {
                root /srv/http/localhost;
        }
}