Stateful

Security Groups vs NACLs

Compare AWS's two network-layer firewalls — stateful Security Groups and stateless Network ACLs — and learn when and how to use each for defense in depth.

Stateful Application Patterns

Explore how StatefulSets, headless Services, and volumeClaimTemplates combine to run databases and other stateful workloads reliably on Kubernetes.

State Hoisting

Learn the Compose pattern of moving state up to a caller so composables become stateless, reusable, and easier to test.

Stateless vs Stateful Services

Explains the distinction between services that retain per-client state locally versus those that don't, and why statelessness is central to scalable system des…