A DNS01 challenge is a type of challenge used in the Domain Name System (DNS) to verify ownership of a domain during the process of obtaining an SSL/TLS certificate, often through services like Let's Encrypt.
Before deploying our workloads, the CCE cluster must be equipped with a set of foundational components. In this section, we'll install and configure essential prerequisites such as the NGINX Ingress Controller for routing external traffic, cert-manager for managing TLS certificates, and other supporting workloads. These components establish the baseline infrastructure required to expose services securely and ensure smooth operation of the application stack within the Kubernetes environment.