systemd/network: Disable RoutesToDNS#109
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jepio merged 1 commit intoflatcar-masterfrom Oct 6, 2023
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Flatcar VMs on Azure with multiple nics fail to provision correctly because of multiple routes to wireserver (168.63.129.16) with the same metric, and wireserver only responds to 'ready' signals on the primary nic. The primary nic gets an explicit route to wireserver through dhcp. It turns out systemd is adding the extra routes because wireserver is also the dhcp and dns server, and the default RoutesToDNS=true setting is the reason. This behavior is non-standard and I don't think it's expected on any platform. Disable this behavior by default. Signed-off-by: Jeremi Piotrowski <jpiotrowski@microsoft.com>
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Pull in this PR flatcar/init#109 to disable a systemd-networkd setting causing unexpected routes to appear. Signed-off-by: Jeremi Piotrowski <jpiotrowski@microsoft.com>
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Pull in this PR flatcar/init#109 to disable a systemd-networkd setting causing unexpected routes to appear. Signed-off-by: Jeremi Piotrowski <jpiotrowski@microsoft.com>
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Pull in this PR flatcar/init#109 to disable a systemd-networkd setting causing unexpected routes to appear. Signed-off-by: Jeremi Piotrowski <jpiotrowski@microsoft.com>
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Pull in this PR flatcar/init#109 to disable a systemd-networkd setting causing unexpected routes to appear. Signed-off-by: Jeremi Piotrowski <jpiotrowski@microsoft.com>
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Pull in this PR flatcar/init#109 to disable a systemd-networkd setting causing unexpected routes to appear. Signed-off-by: Jeremi Piotrowski <jpiotrowski@microsoft.com>
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Pull in this PR flatcar/init#109 to disable a systemd-networkd setting causing unexpected routes to appear. Signed-off-by: Jeremi Piotrowski <jpiotrowski@microsoft.com>
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Pull in this PR flatcar/init#109 to disable a systemd-networkd setting causing unexpected routes to appear. Signed-off-by: Jeremi Piotrowski <jpiotrowski@microsoft.com>
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systemd/network: Disable RoutesToDNS
Flatcar VMs on Azure with multiple nics fail to provision correctly because of multiple routes to wireserver (168.63.129.16) with the same metric, and wireserver only responds to 'ready' signals on the primary nic. The primary nic gets an explicit route to wireserver through dhcp. It turns out systemd is adding the extra routes because wireserver is also the dhcp and dns server, and the default RoutesToDNS=true setting is the reason.
This behavior is non-standard and I don't think it's expected on any platform. Disable this behavior by default.
How to use
az vm create --nics ....Testing done
[Describe the testing you have done before submitting this PR. Please include both the commands you issued as well as the output you got.]
changelog/directory (user-facing change, bug fix, security fix, update)/bootand/usrsize, packages, list files for any missing binaries, kernel modules, config files, kernel modules, etc.