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Ingress

An API object that manages external access to services in a Kubernetes cluster, typically HTTP.

Categorycloud

Overview

Ingress exposes HTTP and HTTPS routes from outside the cluster to services within the cluster. Traffic routing is controlled by rules defined on the Ingress resource.

Key Functions

  • Load Balancing: Distributes incoming traffic across multiple backend services.
  • SSL/TLS Termination: Handles secure connections at the edge of the cluster.
  • Name-Based Virtual Hosting: Routes traffic to different services based on the host name (e.g., app.example.com vs api.example.com).
  • Path-Based Routing: Routes traffic based on the URL path (e.g., /shop vs /api).

Ingress Controller

To satisfy an Ingress, the cluster must have an Ingress controller running (e.g., NGINX Ingress Controller, Traefik, Istio Ingress Gateway).

Related Terms

EgressAPI Gateway