How to create openshift route resource to take incoming request on custom port other than default (443)?

[rahulsb]

[provide a description of the issue]

Version 4.15

Steps To Reproduce

1. Create OpenShift route resource to expose application public URL
2. Define custom port to listen other than default 443

Current Result

1. Openshift routes do not allow to specify custom port to listen on and for HTTPS it always assume 443.

Expected Result

1. Like the ingress controllers provide ways to customise the port , openshift route must provide a way to specify the http and https custom port for public urls of applications.

Additional Information

[try to run $ oc adm diagnostics (or oadm diagnostics) command if possible]
[if you are reporting issue related to builds, provide build logs with BUILD_LOGLEVEL=5]
[consider attaching output of the $ oc get all -o json -n <namespace> command to the issue]
[visit https://docs.openshift.org/latest/welcome/index.html]