windows: kubelet tries to load C:\var\lib\kubelet\etc\kubernetes\pki\ca.crt

[jayunit100]

Is this a request for help?

no

Is this a BUG REPORT or FEATURE REQUEST?

BUG REPORT

Versions

1.18

What happened?

Kubeadm seems to be saying it can't load the cert files im specifying in windows... but its not clear why its looking in this path (there is nothing there)

Looking in the kubelet logs via PS C:\k> cat 'C:\var\log\kubelet\kubelet.exe.ERROR' ...

Log line format: [IWEF]mmdd hh:mm:ss.uuuuuu threadid file:line] msg                                                                                                                                                                                                                                                          F1022 09:46:18.740525    5956 server.go:254] unable to load client CA file \var\lib\kubelet\etc\kubernetes\pki\ca.crt: open
 C:\var\lib\kubelet\etc\kubernetes\pki\ca.crt: The system cannot find the path specified.

goroutine 1 [running]:                                                                                                                                                                                                                                                                                                       
k8s.io/kubernetes/vendor/k8s.io/klog.stacks(0xc0000be001, 0xc000512000, 0x939, 0x2710)
        /workspace/anago-v1.18.0-
rc.1.21+8be33caaf953ac/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/vendor/k8s.io/klog/klog.go:875 

+0xbf
k8s.io/kubernetes/vendor/k8s.io/klog.(*loggingT).output(0x6c10080, 0xc000000003, 0xc0008df880, 0x6a88aeb, 0x9, 0xfe, 0x0)

What you expected to happen?

Kubeadm would be looking in the right place for the ca.crt file

How to reproduce it (as minimally and precisely as possible)?

In my case, i ran kubeadm on windows, and then reset, and re ran it again, which is when i started seeing this.

[neolit123]

/kind support

what are the contents of the /var/lib/kubelet/config.yaml (that has the KubeletConfiguration)?

[neolit123]

please provide reproduction steps and more details.

[benmoss]

Yes, this was a known problem that we worked around in sig-windows-tools scripts just by symlinking /etc/kubernetes/pki to /var/lib/kubelet/etc/kubernetes/pki https://github.com/kubernetes-sigs/sig-windows-tools/blob/master/kubeadm/scripts/PrepareNode.ps1#L65

[neolit123]

ok, that was it...i don't recall the actual problem though i think it goes down to client-go / abs paths.

[neolit123]

@jayunit100 and like mentioned on slack this is not a kubeadm bug per-se, but if you want to dig down to it, we should log a kubernetes/kubernetes issue.

[neolit123]

added a mention about this in #1393 (windows tracking issue)
and closing this one.

@jayunit100 please ping me on a potential k/k ticket about the actual bug in core.
thanks

[jayunit100]

were following on in #1393 on this