CoreDNS is the cluster DNS server. On kubeadm clusters it runs as the coredns Deployment in kube-system, exposed by a Service still named kube-dns for compatibility, usually at the tenth address of the Service CIDR (10.96.0.10 with kubeadm's default). The kubelet writes that address into every Pod's /etc/resolv.conf.
Free account
Keep reading for free
Create a free StudyToCert account to read the rest of this lesson: 5 more sections, 4 key terms, a real-world example, an exam tip and self-check questions. Every lesson, lab and practice test is free with an account.