SSL with Nginx Ingress and Kubernetes

I have a question regarding SSL.
When you are behind an NGINX Ingress on Kubernetes, do you MUST set this value to TRUE or is the NGINX SSL sufficient?
<enable type="bool" desc="Controls whether SSL encryption between coolwsd and the network is enabled (do not disable for production deployment). If default is false, must first be compiled with SSL support to enable." default="true">false</enable>

Thanks in advance