Avahi does not always resolve the right IP address

[eliasbakken]

During development of #382 another bug was discovered.
avahi-daemon does not expose the ethernet IP address for recore, only the Wifi hotspots IP address.
Here is what the log looks like:

-- Journal begins at Fri 2023-10-27 10:17:14 UTC, ends at Fri 2023-10-27 10:31:51 UTC. --
Oct 27 10:17:17 recore systemd[1]: Starting Avahi mDNS/DNS-SD Stack...
Oct 27 10:17:17 recore avahi-daemon[1103]: Found user 'avahi' (UID 106) and group 'avahi' (GID 112).
Oct 27 10:17:17 recore avahi-daemon[1103]: Successfully dropped root privileges.
Oct 27 10:17:17 recore avahi-daemon[1103]: avahi-daemon 0.8 starting up.
Oct 27 10:17:17 recore avahi-daemon[1103]: Successfully called chroot().
Oct 27 10:17:17 recore avahi-daemon[1103]: Successfully dropped remaining capabilities.
Oct 27 10:17:17 recore avahi-daemon[1121]: chroot.c: open() failed: No such file or directory
Oct 27 10:17:17 recore avahi-daemon[1103]: Failed to open /etc/resolv.conf: Invalid argument
Oct 27 10:17:17 recore avahi-daemon[1103]: Loading service file /services/sftp-ssh.service.
Oct 27 10:17:17 recore avahi-daemon[1103]: Loading service file /services/ssh.service.
Oct 27 10:17:17 recore avahi-daemon[1103]: Joining mDNS multicast group on interface lo.IPv6 with address ::1.
Oct 27 10:17:17 recore avahi-daemon[1103]: New relevant interface lo.IPv6 for mDNS.
Oct 27 10:17:17 recore avahi-daemon[1103]: Joining mDNS multicast group on interface lo.IPv4 with address 127.0.0.1.
Oct 27 10:17:17 recore avahi-daemon[1103]: New relevant interface lo.IPv4 for mDNS.
Oct 27 10:17:17 recore avahi-daemon[1103]: Network interface enumeration completed.
Oct 27 10:17:17 recore avahi-daemon[1103]: Registering new address record for ::1 on lo.*.
Oct 27 10:17:17 recore avahi-daemon[1103]: Registering new address record for 127.0.0.1 on lo.IPv4.
Oct 27 10:17:18 recore systemd[1]: Started Avahi mDNS/DNS-SD Stack.
Oct 27 10:17:18 recore avahi-daemon[1103]: Server startup complete. Host name is recore.local. Local service cookie is 2383442613.
Oct 27 10:17:19 recore avahi-daemon[1103]: Service "recore" (/services/ssh.service) successfully established.
Oct 27 10:17:19 recore avahi-daemon[1103]: Service "recore" (/services/sftp-ssh.service) successfully established.
Oct 27 10:17:28 recore avahi-daemon[1103]: Joining mDNS multicast group on interface eth0.IPv6 with address fe80::50f2:7389:a7ac:7adf.
Oct 27 10:17:28 recore avahi-daemon[1103]: New relevant interface eth0.IPv6 for mDNS.
Oct 27 10:17:28 recore avahi-daemon[1103]: Registering new address record for fe80::50f2:7389:a7ac:7adf on eth0.*.
Oct 27 10:17:28 recore avahi-daemon[1103]: Joining mDNS multicast group on interface wlx90de803c3baf.IPv6 with address fe80::6776:96da:7765:3992.
Oct 27 10:17:28 recore avahi-daemon[1103]: New relevant interface wlx90de803c3baf.IPv6 for mDNS.
Oct 27 10:17:28 recore avahi-daemon[1103]: Registering new address record for fe80::6776:96da:7765:3992 on wlx90de803c3baf.*.
Oct 27 10:17:28 recore avahi-daemon[1103]: Joining mDNS multicast group on interface wlx90de803c3baf.IPv4 with address 192.168.50.1.
Oct 27 10:17:28 recore avahi-daemon[1103]: New relevant interface wlx90de803c3baf.IPv4 for mDNS.
Oct 27 10:17:28 recore avahi-daemon[1103]: Registering new address record for 192.168.50.1 on wlx90de803c3baf.IPv4.
Oct 27 10:17:29 recore avahi-daemon[1103]: Joining mDNS multicast group on interface eth0.IPv4 with address 192.168.32.184.
Oct 27 10:17:29 recore avahi-daemon[1103]: New relevant interface eth0.IPv4 for mDNS.
Oct 27 10:17:29 recore avahi-daemon[1103]: Registering new address record for 192.168.32.184 on eth0.IPv4.
Oct 27 10:17:30 recore avahi-daemon[1103]: Leaving mDNS multicast group on interface eth0.IPv6 with address fe80::50f2:7389:a7ac:7adf.
Oct 27 10:17:30 recore avahi-daemon[1103]: Joining mDNS multicast group on interface eth0.IPv6 with address 2001:2020:32b:c20b:ba3a:5c15:44c6:fd14.
Oct 27 10:17:30 recore avahi-daemon[1103]: Registering new address record for 2001:2020:32b:c20b:ba3a:5c15:44c6:fd14 on eth0.*.
Oct 27 10:17:30 recore avahi-daemon[1103]: Withdrawing address record for fe80::50f2:7389:a7ac:7adf on eth0.