What this pattern does:

ExternalDNS synchronizes exposed Kubernetes Services and Ingresses with DNS providers. Kubernetes' cluster-internal DNS server, ExternalDNS makes Kubernetes resources discoverable via public DNS servers. Like KubeDNS, it retrieves a list of resources (Services, Ingresses, etc.) from the Kubernetes API to determine a desired list of DNS records. Unlike KubeDNS, however, it's not a DNS server itself, but merely configures other DNS providers accordingly—e.g. AWS Route 53 or Google Cloud DNS. In a broader sense, ExternalDNS allows you to control DNS records dynamically via Kubernetes resources in a DNS provider-agnostic way.

Caveats and Consideration:

For more information and considerations checkout this repo https://github.com/kubernetes-sigs/external-dns/?tab=readme-ov-file


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