Let me quickly explain this. I have one cluster on which xyz app is running and exposed in ingress URL. say httpsprotocol://xyz.com
I'm using IBM cloud.
Can I configured my own url say httpsprotocol://myurl.com pointing to the ingress subdomain URL.httpsprotocol://xyz.com How can I do that?
So every time when I hit myURL it should routes to ingresssubURL.
That is possible. For https on your custom domain, you would need a TLS certificate. There is a IBM Cloud solution tutorial which has optional steps to set up your own domain for ingress access. It has the source code and configuration files you could look at and adapt for your case.
There is also this blog post in which I show how to configure the URL and apply the certificate. Both the tutorial and the blog have links to the IBM Cloud documentation for the basics.