nginx/code-server.conf

server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    server_name code.exozy.me;

    ssl_certificate /etc/letsencrypt/live/exozy.me/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/exozy.me/privkey.pem;

    location / {
        proxy_pass http://localhost:6000;
        proxy_set_header Host $host;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection upgrade;
        proxy_set_header Accept-Encoding gzip;
    }
}