Create DNS entries and deploy PEG VM

Create DNS entries and deploy PEG VM as part of installing PEG.

Create DNS entries where each domain mentioned in Table 1, points to the PEG VM (PEG must have a static IP or a static domain name).

For security, some organizations might require a custom DNS. The following steps describe how to update the settings to use a custom DNS and ensure smooth data forwarding to the platform.

Procedure

  1. Edit the CoreDNS ConfigMap.
    1. Run the command: kubectl edit configmap coredns -n kube-system.
    2. Modify the Corefile to replace the default DNS forward setting with the client's custom DNS.
  2. Change the configuration.
    1. Locate the line: forward. /etc/resolv.conf.
    2. Change the line to: forward. example_DNS.
      Replace example_DNS with your custom DNS.

    Example of the modified configuration:

    
apiVersion: v1
data:
  Corefile: |
    .:53 {
    errors
    health
    ready
    kubernetes cluster.local in-addr.arpa ip6.arpa {
      pods insecure
      upstream
      fallthrough in-addr.arpa ip6.arpa
    }
    hosts /etc/coredns/NodeHosts {
      reload 1s
      fallthrough
    }
    prometheus :9153
    forward . <CUSTOM_DNS_HERE>
    cache 30
    loop
    reload
    loadbalance
  }
  3. Apply the changes.
    1. Save and exit the editor to apply the changes.
    2. CoreDNS will automatically reload the new configuration.