I have a service A inside a Digital Ocean managed kubernetes cluster that makes HTTP requests to another service B (in the same cluster), using the publicly available hostname. Recently we changed the IP address of the load balancer standing in front of the cluster and updated our DNS settings in Cloudflare, but requests from the first service still go to the old IP address and fail. How can I refresh the DNS so it points to the right IP address? Reaching service B from my own computer is no problem. The IP address was changed 2 days ago.