docker exec -it appServer_LetsEncryptFetcher certbot certonly \
  --webroot \
  -w /var/www/certbot \
  -d server.schooltech.ch \
  -d abc.server.schooltech.ch \
  -d xyz.server.schooltech.ch \
  -d portainer.server.schooltech.ch \
  -d controller.server.schooltech.ch \
  --email admin@server.schooltech.ch \
  --agree-tos \
  --no-eff-email