Kubernetes

An overview of Kubernetes Ingress resources and the controllers that fulfill them, covering terminology, creation, and prerequisites.

Explains how the rewrite-target annotation in the NGINX Ingress controller maps user-facing URL paths to backend services, preventing 404 errors. Includes examples of simple and regex-based rewrites.

A deep dive into how Kubernetes DNS resolves service names to IP addresses, covering A records, SRV records, search domains, and the full lookup path from pod to CoreDNS. Understanding this lifecycle is essential for debugging connectivity issues and designing resilient microservice architectures.

A practical walkthrough of the Kubernetes Gateway API using the NGINX Gateway Controller, covering HTTP routing, TLS termination, traffic splitting, and multi-protocol support. The concepts are implementation-agnostic and apply across any Gateway API-compatible controller.

Kubernetes provides a built-in DNS service that assigns predictable names to Services and Pods within a cluster. By default, pods use cluster.local as their search base for internal DNS resolution, enabling communication through human-readable names rather than ephemeral IP addresses.

Kustomize is a native Kubernetes configuration management tool that enables declarative, template-free customization of Kubernetes objects using YAML files. It supports hierarchical base-and-overlay structures, targeted patches, and built-in generation of ConfigMaps and Secrets.