HA kubernetes cluster and Nginx

[ilbarone87]

Hello all, I’m trying to setup my first RKE2 HA cluster but I’m having some difficulties to join the other nodes.
I manage to spin the first node and correctly set the config yaml as:
-10.10.10.55
-kubecluster.mydomain.com
-kubenode01

While the config.yaml for second and third is setup this way:

Token: xxxx
Server: kubecluster.my domain.com:9345
-10.10.10.55
-kubecluster.mydomain.com
-kubenode02
In my network I have and Nginx load balancer running with Nginx Proxy Manager and Pi-hole is working as Local DNS. When trying to join the second and third node the rke2 script hit the load balancer ip (10.10.10.49:9345) and fails to join. Certificates are loaded on my Nginx Proxy Manager. Can you please help me to understand if there's additional configuration I should add to NGINX to let the others two nodes join the first?
Thanks

 

[jeyare]

I miss info about establishing API 6443 listener, what is one from two prerequisites for RKE2 through LB

 

[ilbarone87]

I miss info about establishing API 6443 listener, what is one from two prerequisites for RKE2 through LB

Yeah, same for 6443 but first explicit error is about “kubecluster.mydomain.com:9345 access denied” when you first setup and you need to join the other nodes.
Given that I believe I managed to find the fix. Indeed there was something needed in NPM to pass that traffic.
I had to set in NPM streams section the port hit by the request and the forward IP and port to send that request. Guess what… it magically worked.

 

[jeyare]

there isn’t magic, just correct setup