Resolve DNS resolution issues for Hetzner on Ubuntu 24.04 #419
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Signed-off-by: Waleed Malik <ahmedwaleedmalik@gmail.com>
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What this PR does / why we need it:
This PR aims to fix a bug that we ran into with Hetzner machines on Ubuntu 24.04. During our testing cycles for Ubuntu 24.04 support, we found out that DNS somehow stops working after some time; we first thought about removing:
For Hetzner, it has larger implications, the main one being that dual-stack networking stops working if we remove this line; it was added specifically for that in #200.
Another side-effect that we found out during testing was that even if we skip this, sometimes the DNS gets broken so early that we are unable to even fetch the provisioning configuration from the Kubernetes secret.
Hence, to resolve this, we are resorting to Cloudflare DNS as fallback in case the DNS resolution fails.
Which issue(s) this PR fixes:
Fixes #
What type of PR is this?
/kind bug
Special notes for your reviewer:
Does this PR introduce a user-facing change? Then add your Release Note here:
Documentation: