Deploy Java SSL Application on K8s

Cluster information:

Kubernetes version: v1.17
Cloud being used: (put bare-metal if not on a public cloud)
Installation method: Package
Host OS: RedHat
CNI and version:
CRI and version:

I am trying to deploy Java SSL applications on K8s by using NodePort to expose a port on worker node, I access to Java application bu using this port.
I generated the CA-Key to help applications trust each other, and added it to Java Cert. In my CA-key contain all IP of worker node but Application appear the log that I added.

Please help me!!!