Which OpenShift object maps a host to a service for external access?

Which OpenShift object maps a host to a service for external access?

• A. Route
• B. Ingress
• C. Service
• D. NetworkPolicy

Answer: (A)

OpenShift exposes services to the outside world using a Route. A Route ties a DNS host (like app.example.com) to a Service inside the cluster, and the OpenShift Router handles the external traffic at that host, forwarding it to the Service and then to the underlying pods. Routes can also terminate TLS at the edge and support path-based routing if needed, making external access straightforward and secure. This approach is OpenShift’s built-in way to expose services externally, whereas a Service exposes pods inside the cluster, NetworkPolicy controls what traffic is allowed, and Ingress is the Kubernetes standard that OpenShift doesn't use natively for external access.

OpenShift exposes services to the outside world using a Route. A Route ties a DNS host (like app.example.com) to a Service inside the cluster, and the OpenShift Router handles the external traffic at that host, forwarding it to the Service and then to the underlying pods. Routes can also terminate TLS at the edge and support path-based routing if needed, making external access straightforward and secure.

This approach is OpenShift’s built-in way to expose services externally, whereas a Service exposes pods inside the cluster, NetworkPolicy controls what traffic is allowed, and Ingress is the Kubernetes standard that OpenShift doesn't use natively for external access.