Comment 9 for bug 1810583

Andreas, in our case this was a one off. The system had been running for 2 months without any issues, and this sudden network restart due to a daily update check was not expected. We did a lot of testing different failover events (disconnecting vNIC, powering off a single node, stopping keepalived service etc), but we never specifically tested a restart of the networkd service. This bug has potentially gone unnoticed for some time because of this aspect, and the frequency of this event occurring (in our case), is low.

Just for visibility, the specific workaround I attempted to implement which recycled keepalived on netowrk restart was to add an override to networkd unit file using the following commands. This results in the immediate issues being fixed (keepalived restarts as desired), but prevents the network daemon from starting up after a reboot causing the system to become stuck in a wait loop. I had to boot to recovery mode and remove the override file again to restore functionality.

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sudo systemctl edit systemd-networkd

then in the override file via NANO:

[Service]
ExecStartPost=!/bin/systemctl restart keepalived
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