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wireless_purposely832

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Multiple Kubernetes Services Using Same Port Without SNI

I am running a bare metal Kubernetes cluster on k3s with Kube-VIP and Traefik. This works great for services that use SSL/TLS as Server Name Indication (SNI) can be used to reverse proxy multiple services listening on the same port. Consequently, getting Traefik to route multiple web servers receiving traffic on ports 80 or 443...

wireless_purposely832 OP ,

Thanks - I appreciate the response. However, for the services I’m asking about (eg: SSH, SFTP, etc.) do not support SSL/TLS and forcing SSL/TLS with a wrapper would likely cause incompatibility with clients.

I agree though - for other the services connecting via HTTP/HTTPS, there would likely either be some incompatibility or at least warning messages about not using SSL/TLS.

wireless_purposely832 OP ,

I guess I need to dig in a little deeper. I am currently only using Kube-VIP to provide a single IP address for the control plane. I think I may have it configured wrong though since that same IP address is the single load balancer IP used by Traefik.

I have struggled finding good documentation, hints, tutorials, etc. setting up Kube-VIP with Virtual IPs. Is there anything that you are aware of that might provide some assistant in setting that up correctly?

wireless_purposely832 OP ,

I think I can avoid using metallb since I’m already using Kube-VIP.

I do not think that I am using Virtual IPs correctly as I tried setting it up, but it did not work. I assume the Virtual IP would just become the Load Balancer IP and I would need to configure Traefik and Kube-VIP (as well as my network) to use the Virtual IPs?

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