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VannTen avatar VannTen commented on August 27, 2024 1

Install the cluster with calico ebpf enabled.
Remove Kube-proxy DS

kube-proxy should not be deployed in the first place when calico_bpf_enabled is true, see

kubespray/roles/kubespray-defaults/defaults/main/main.yml

Line 41 in 4b9349a

{%- elif kube_network_plugin == 'calico' and (calico_bpf_enabled is defined and calico_bpf_enabled) -%}

(kubeadm handle the kube-proxy part, and we skip that kubeadm phases in some cases, including calico ebpf)

Can you check the value of calico_bpf_enabled on your nodes ? And ideally of kubeadm_init_phases_skip as well.

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ehsan310 avatar ehsan310 commented on August 27, 2024

I get that and that but I haven't enabled ebpf in the beginning I enabled when the cluster were up and running and removed kube-proxy , so during the inital phase kube-proxy was in the cluster. I was hoping that when ebpf is enable and i removed kube-proxy DS , kube-proxy is not getting pushed again.

is there anywhere in node that keep kubeadm configs ?

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VannTen avatar VannTen commented on August 27, 2024

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ehsan310 avatar ehsan310 commented on August 27, 2024

sounds like there is a kubeadm-config configmap in kube-system namespace.

https://kubernetes.io/docs/tasks/administer-cluster/kubeadm/kubeadm-reconfigure/#applying-kube-proxy-configuration-changes

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poblahblahblah avatar poblahblahblah commented on August 27, 2024

We ran into this problem as well, albeit with a different CNI, and it was because we deleted the kube-system/kube-proxy DaemonSet but we did not delete the kube-system/kube-proxy ConfigMap.

Once we removed both of those the issue went away on upgrade.

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ehsan310 avatar ehsan310 commented on August 27, 2024

We ran into this problem as well, albeit with a different CNI, and it was because we deleted the kube-system/kube-proxy DaemonSet but we did not delete the kube-system/kube-proxy ConfigMap.

Once we removed both of those the issue went away on upgrade.

I'll try to test this, hopefully this will fix the issue, then might be good to document it.

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