DnsPolicy results in crashing istio proxy

[simonostendorf]

I am using the hcloud cloud controller manager together with the istio sidecar proxy.

The istio proxy is stuck in a crash loop because it can't find the istiod host (Error while dialing: dial tcp: lookup istiod.istio-system.svc on 185.12.64.1:53: no such host). This is using the hetzner dns here (where obviously the entry can not be found).

If I switch the dnsPolicy inside the deployment to ClusterFirst everything works as expected.

Is there a reason why it is configured to use Default?

See here, here, here and here.

[apricote]

Mh, I tried to figure out why its set this way, but it was introduced in the second commit of the repository without any comment: https://github.com/hetznercloud/hcloud-cloud-controller-manager/commit/785dd83c9390352acec09d5564934727bb1e3200#diff-b6264178c40e2a300a57855f7bbd1de74003cb68b4b9ac834432c73309f5c9bcR39

I think we can just remove it, in that case it would default to ClusterFirst. Do you want to submit a PR?

[simonostendorf]

Mh, I tried to figure out why its set this way, but it was introduced in the second commit of the repository without any comment: 785dd83#diff-b6264178c40e2a300a57855f7bbd1de74003cb68b4b9ac834432c73309f5c9bcR39

I think we can just remove it, in that case it would default to ClusterFirst. Do you want to submit a PR?

Thanks for your reply. Yes I can submit a PR.

[apricote]

There was an issue afterall with removing the DNS policy. I will try to find a solution that works for all cases.

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