27_check_cluster_dns.yml - Usage Guide

Read-Only k3s kubeadm

Purpose

In-cluster DNS (CoreDNS / kube-dns):

  • Service + pod + endpoints
  • Corefile summary
  • Resolves kubernetes.default against the kube-dns ClusterIP from the node using dig/nslookup
  • Lists NodeLocal DNS if present

For external internet DNS, see 19.

How to run 

ansible-playbook -i inventories/cagatayuresincom/hosts.ini playbooks/27_check_cluster_dns.yml

Script: playbooks/files/k8s_cluster_dns_check.py