3.5. Configuring ingress cluster traffic

OpenShift Container Platform provides the following methods for communicating from outside the cluster with services running in the cluster:

  • If you have HTTP/HTTPS, use an Ingress Controller.
  • If you have a TLS-encrypted protocol other than HTTPS, such as TLS with the SNI header, use an Ingress Controller.
  • Otherwise, use a load balancer, an external IP, or a node port.
MethodPurpose

Use an Ingress Controller

Allows access to HTTP/HTTPS traffic and TLS-encrypted protocols other than HTTPS, such as TLS with the SNI header.

Automatically assign an external IP by using a load balancer service

Allows traffic to non-standard ports through an IP address assigned from a pool.

Manually assign an external IP to a service

Allows traffic to non-standard ports through a specific IP address.

Configure a NodePort

Expose a service on all nodes in the cluster.