Document URL: https://docs.openshift.com/container-platform/4.10/networking/configuring_ingress_cluster_traffic/configuring-ingress-cluster-traffic-load-balancer.html#nw-create-load-balancer-service_configuring-ingress-cluster-traffic-load-balancer

Section Number and Name: Creating a load balancer service

Describe the issue: Currently no warning like "vSphere's cloud provider is not capable of creating load balancers, and will ignore that aspect of Service resources".

Suggestions for improvement: Mention that LB support depends on the cloud-provider. Possibly attempt to keep track of which cloud providers have this support, or point folks at a way to check (not sure if this exists or not).

Additional information: [1] is the upstream, in-tree vSphere cloud provider saying "yeah, I don't do load balancers". Presumably the "None" cloud provider also ignores load balancer requests. I haven't checked other cloud providers. I haven't gone back through the docs to see how stable this text is, but I'd guess at least 4.6+ would need the new warning.

[1]: https://github.com/kubernetes/kubernetes/blob/707b8b6efd1691b84095c9f995f2c259244e276c/staging/src/k8s.io/legacy-cloud-providers/vsphere/vsphere.go#L906-L909