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Practice Test CoreDNS in Kubernetes

Solution

  1. Check the Solution

    ``` CoreDNS ```

  2. Check the Solution

    ``` 2 ```

  3. Check the Solution

    ``` 10.96.0.10 ```

  4. Check the Solution

    ``` /etc/coredns/Corefile OR kubectl -n kube-system describe deployments.apps coredns | grep -A2 Args | grep Corefile ```

  5. Check the Solution

    ``` Configured as a ConfigMapObject ```

  6. Check the Solution

    ``` CoreDNS ```

  7. Check the Solution

    ``` coredns ```

  8. Check the Solution

    ``` cluster.local ```

  9. Check the Solution

    ``` Ok ```

  10. Check the Solution

    ``` web-service ```

  11. Check the Solution

    ``` web-serivce.default.pod ```

  12. Check the Solution

    ``` web-service.payroll ```

  13. Check the Solution

    ``` web-service.payroll.svc.cluster ```

  14. Check the Solution

    ``` kubectl edit deploy webapp Search for DB_Host and Change the DB_Host from mysql to mysql.payroll spec: containers: - env: - name: DB_Host value: mysql.payroll ```

  15. Check the Solution

    ``` kubectl exec -it hr -- nslookup mysql.payroll > /root/nslookup.out ```