John Siu Blog

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[Unit]
Description=Publish %I as alias for %H via mdns

[Service]
Type=simple
ExecStart=/bin/bash -c "/etc/systemd/system/avahi-alias.sh %I"
Restart=on-failure
RestartSec=5s

[Install]
WantedBy=multi-user.target

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#!/usr/bin/bash

mdns_domain="local"
IP=$(avahi-resolve -4 -n $(hostname -s).$(mdns_domain) | cut -f2)
ALIAS=$1

if [ $IP != "127.0.0.1" ]
then
	echo "Aliasing $IP as $ALIAS."
	avahi-publish -a -R $ALIAS $IP
else
	echo "Exiting, local address is $IP."
	exit 1
fi

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systemctl enable --now avahi-alias@<alias>.local.service