Host-based routing
Host-based routing is a traffic-routing technique that selects a backend according to the hostname in a request.
Acing the Certified Kubernetes Administrator Exam, Second Edition
Host-based routing is a traffic-routing technique that selects a backend according to the hostname in a request.
- How it is used
- Routes external HTTP and HTTPS requests to different internal Services through a centralized Ingress controller.
- How deep it goes
- Explains controller, Service, Ingress, DNS, and curl verification, but does not descend into controller internals.
- Examples
- Uses hello.com, app.hello.com, hello-svc, nginx, kubectl output, a host entry, and curl responses.
- What you can do after
- Build it from scratch by installing an Ingress controller, exposing a Deployment, defining host rules, and verifying routing.
Kubernetes for Developers
Host-based routing directs requests to different backends according to the hostname in the request.
- How it is used
- Uses an Ingress to expose multiple HTTP services through one external IP.
- How deep it goes
- Explains Host-header routing and manifests, but defers detailed controller implementation and cloud provisioning.
- Examples
- Demonstrates timeserver.example.com and robohash.example.com routing to separate internal Services.
- What you can do after
- Build it from scratch by defining hostname rules that route requests to Kubernetes Services.
Read how Kubernetes for Developers explains host-based routing →
Related concepts
- ingress objectused by · A Kubernetes Ingress is an API resource that specifies rules for routing external HTTP and HTTPS requests to services within a cluster.
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