Roles issues server RKE

[Davidstos]

Environmental Info:
RKE2 Version:
v1.25.12+rke2r1

Node(s) CPU architecture, OS, and Version:
OS: 22.04.2 LTS (Jammy Jellyfish)
CPU : x64 intel x86

Cluster Configuration:
"3 servers"

kubectl get nodes

NAME STATUS ROLES AGE VERSION
vm22022 Ready control-plane,etcd,master 48m v1.25.12+rke2r1
vm22023 Ready control-plane,etcd,master 33m v1.25.12+rke2r1
vm22024 Ready control-plane,etcd,master 27m v1.25.12+rke2r1

Describe the bug:
Hello,

I have set up three rke2 servers, I don't want these servers to execute pods (disable the worker role).
When I launch a deployment, the pods are mounted on my masters. I didn't find in the documentation how to disable the execution of pods on servers

NAMESPACE NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
default nginx-deployment-7fb96c846b-b55nf 1/1 Running 0 5s 10.42.1.8 vm22023
default nginx-deployment-7fb96c846b-fdzkl 1/1 Running 0 5s 10.42.2.6 vm22024
default nginx-deployment-7fb96c846b-p6tl5 1/1 Running 0 5s 10.42.0.16 vm22022

[brandond]

You would want to use taints to do that:
https://docs.rke2.io/advanced#node-labels-and-taints

Ensure that you use a taint that the core components tolerate, otherwise the cluster will not come up completely without agent nodes.

[Davidstos]

Thank for your reply.

[brandond]

The most common taint used on control-plane nodes would be node-role.kubernetes.io/control-plane=:NoSchedule

[Davidstos]

Thank you, I found this in the doc CriticalAddonsOnly=true:NoExecute this seems to work too 🙂

[brandond]

that's another good one