nginx.conf

server_names_hash_bucket_size 64;

server {
    listen 443 ssl;
    server_name %DOMAIN%;
    access_log /var/log/nginx/%DOMAIN%.log;

    ssl_protocols       TLSv1 TLSv1.1 TLSv1.2;
    ssl_ciphers         HIGH:!aNULL:!MD5;
    ssl_certificate     %DOMAIN%.chained.pem;
    ssl_certificate_key %DOMAIN%.private.pem;

    location / {
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_set_header X-NginX-Proxy true;

        proxy_pass http://127.0.0.1:3000;
        proxy_redirect off;

        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "Upgrade";
    }
}

server {
    listen 80;
    server_name %DOMAIN%;
    access_log /var/log/nginx/%DOMAIN%.log;
 
    location / {
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_set_header X-NginX-Proxy true;
 
        proxy_pass http://127.0.0.1:%NODEPORT%;
        proxy_redirect off;
 
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "Upgrade";
    }
}
 
server {
        listen 80;
        server_name www.%DOMAIN%;
        return 301 $scheme://%DOMAIN%$request_uri;
}