Migrate from RH-SSO to KeyCloak on K8s

We would like to move from RH-SSO to KeyCloack(KC) for some obvious reasons like deploying KeyCloak on Kubernetes (K8s) whereas RH-SSO only supports OpenShift.

May I know if our current version of RH-SSO which is equivalent to KC 15.0.4 can be upgraded to KC and run on K8s? Please advise.