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/etc/resolv.conf #26

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anton-johansson opened this Issue Jan 7, 2019 · 2 comments

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anton-johansson commented Jan 7, 2019

The kubelet is configured with the following resolv config:
resolvConf: "/run/systemd/resolve/resolv.conf"

This implies that one is using systemd-resolvd, right? I just had systemd-resolvd disabled due to a temporary local DNS issue and manually configured my /etc/resolv.conf. This means that the directory /run/systemd/resolve/ does not exist and the kubelet is complaining about that.

It feels like it would be better to use /etc/resolv.conf directly? Not sure what implications this might cause though. If I have systemd-resolvd enabled, /etc/resolv.conf is a symlink to /run/systemd/resolve/stub-resolv.conf which does not have the same contents.

We'll get back to using systemd-resolvd as soon as the issue is fixed, so it's not a superbig deal. It's just an idea/discussion.

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amimof commented Jan 7, 2019

I just bumbed in to this issue myself today and changing it to /etc/resolv.conf works with CoreDNS atleast.

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anton-johansson commented Jan 8, 2019

Cool!

When digging around a bit, I found something strange though.
https://github.com/kubernetes/kubernetes/blob/release-1.13/pkg/kubelet/apis/config/types.go#L225
kubernetes/kubernetes#70817

It looks like the KubeletConfiguration property is called resolverConfig? Maybe resolvConf is some kind of alias, but I couldn't find anything about that.

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