ddns

#!/usr/local/bin/zsh

set -e

ip=$(ip addr show wlan0 | ag -o 'inet \K\d+\.\d+\.\d+\.\d+')

TRAPZERR() {
	print "failure, ip was $ip"
}

if [[ $ip == "192.168.0.11" ]]; then
	ip=$(/usr/local/etc/dotfiles/bin/publicIP)
fi

print "before read"
if [[ -f ~/scratch/ip ]] && [[ $(cat ~/scratch/ip) == $ip ]]; then
	print "No need to update\n"
else
	ssh ezekiel "psql -U postgres -d powerdns -c \"UPDATE records SET content = '$ip' where name = 'nepu.aubble.com';\""

	print -n $ip > ~/scratch/ip
fi

ddns.service

[Unit]
Description=Dynamic dns update
Requires=network-online.target
After=network-online.target TunneLS.service

[Service]
User=nhooyr
ExecStart=/usr/local/bin/ddns

[Install]
WantedBy=multi-user.target