Allow empty list of nameservers#443
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openshift-merge-bot[bot] merged 1 commit intocontainers:mainfrom Jan 14, 2025
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@evidolob can you take a look? |
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@jandubois Could you rebase your PR to latest main? It will allow to run test on this PR. |
DNS will obviously not find anything, but at least it still spins up on an offline machine. Signed-off-by: Jan Dubois <jan.dubois@suse.com>
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@evidolob Rebase done |
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Jan 13, 2025
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/approve |
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: cfergeau, evidolob, jandubois The full list of commands accepted by this bot can be found here. The pull request process is described here DetailsNeeds approval from an approver in each of these files:
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/lgtm |
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/approve |
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@cfergeau Just for planning purposes, do you have a rough idea when you will have the next release? |
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gvisor-tap-vsock is used by the Lima project to provide networking support when using the Apple Virtualization framework (VZ).
Up to version gvisor-tap-vsock 0.7.5 this worked fine to start a virtual machine even when the host is offline. In 0.8.0 this fails with a fatal error because
/etc/resolv.confis empty (#420), making it impossible to use Lima while offline (lima-vm/lima#3050).This check and error code seems to have been added to avoid a panic when accessing
nameservers[0](#417). At the time #420 was merged, the panicking code seems to already have been replaced. As far as I can tell, the only access is now viarange nameservers, which automatically does the right thing for an empty slice.I would like to see #420 reverted (conceptually) so that Lima can work offline again.
PS: The test passes
cd pkg/services/dns && go test ./..., but I haven't found any documentation on how to run the full set of tests (my naïve attempts showed failures even when runningmake teston themainbranch, so I guess it needs some additional setup).