Kubernetes Ingress

An Ingress is a set of rules that routes external HTTP and HTTPS traffic to Services by host name and path, and terminates TLS. It does nothing by itself: an Ingress controller (NGINX, Traefik, HAProxy, a cloud controller) reads the rules and configures a proxy. Part of Kubernetes.

Key concepts #

• IngressClass: selects the controller (ingressClassName).
• Rules: host, path and pathType (Prefix, Exact).
• TLS: a Secret with the certificate, often issued by cert-manager.
• Gateway API: the newer, more expressive successor.

Learn it #

Follow Services and Ingress.