How can I troubleshoot DNS issues in Kubernetes?
An example of an AI chatbot conversation about troubleshooting DNS in Kubernetes.
How can I troubleshoot DNS issues in Kubernetes?
To troubleshoot DNS issues in Kubernetes, start by checking the CoreDNS logs for errors. You can do this by running kubectl logs -n kube-system -l k8s-app=kube-dns.
What if I see errors in the logs?
If you see errors, check the configuration of your CoreDNS. Ensure that the CoreDNS deployment is healthy and that the service is correctly configured.
How can I verify if DNS is working for my pods?
You can verify DNS resolution by executing a command like kubectl exec -ti <pod-name> -- nslookup <service-name> from within a pod.
What are some common DNS issues in Kubernetes?
Common issues include misconfigured CoreDNS, network policies blocking DNS traffic, and issues with the kubelet configuration.
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