networkd-dispatcher routable.d config for zerotier-ddns

99-zerotier-ddns

#!/bin/bash

command -v zerotier-cli >/dev/null 2>&1 || { echo >&2 "I require zerotier-cli but it's not installed.  Aborting."; exit 1; }
command -v systemctl >/dev/null 2>&1 || { echo >&2 "I require systemctl but it's not installed.  Aborting."; exit 1; }

# Vars for updating
export ZONE=domain.com
export HOST=zt.domain.com
export USE_DYNAMIC_HOSTNAME=true
export API=yourapikey
export PROXY=false
export FORCE_CREATE=true
export MASTER_API_KEY=false

DDNS_SCRIPT="/usr/local/bin/cloudflare-ddns.sh"

# Get some useful info
MY_HOSTNAME=`echo "$HOSTNAME" | tr '[:upper:]' '[:lower:]'`
DEV=`zerotier-cli listnetworks -j | jq -c -r '.[].portDeviceName' | grep "$IFACE"`

if [[ "$DEV" == "$IFACE" ]]; then
  export ZEROTIER_NETWORK_ID=`zerotier-cli listnetworks -j | jq -c -r '.[] | select(.portDeviceName == "'$IFACE'") | .nwid'`
  export HOST="${MY_HOSTNAME}.${ZEROTIER_NETWORK_ID}.${HOST}"
  export NEW_IP_ADDR=`zerotier-cli listnetworks -j | jq -c -r '.[] | select(.portDeviceName == "'$IFACE'") | .assignedAddresses[0]' | cut -f1 -d"/"`
  $DDNS_SCRIPT
fi