As per upstream issue https://github.com/apache/camel-k/issues/3253 Camel-K should default to using ClusterIP not Node Port for http services when running integrations. At the moment customers must explicitly set the following flag to disable it:

--trait service.node-port=false

Given that node port is rarely used in Kubernetes or OpenShift these days for http services and customers are righly sensitive about having arbitrary ports open in their clusters making this change seems logical.