Overview
ExternalDNS automates the management of DNS records for applications running in Kubernetes. When you create a Service or Ingress with a specific hostname, ExternalDNS automatically creates the corresponding record in your DNS provider (e.g., AWS Route 53, Google Cloud DNS, Cloudflare).
Key Benefits
- Automation: Eliminates the manual step of updating DNS records when deploying new applications.
- Consistency: Ensures that DNS records always match the state of the cluster.
- Support for Many Providers: Works with dozens of public and private DNS services.
How it Works
It monitors the Kubernetes API for changes to Services and Ingresses and then makes the necessary API calls to the DNS provider to create, update, or delete records.