How CoreDNS Powers Service Discovery in Kubernetes (opens in new tab)

CoreDNS is the DNS server that powers service discovery in Kubernetes. This post explains how Pods translate service names into IP addresses, explores common DNS records, and provides practical troubleshooting commands for debugging connectivity issues. In the previous post, we learned how Kubernetes Services provide stable virtual IPs for Pods. But another question remains: How do applications find those Services? Applications rarely communicate using IP addresses. Instead, they use names su...