General requirements: fping bluez.
Requirements Domoticz communication: curl.
Requirements mqtt communication: mosquitto-clients.
Expected installation directory /opt/Pinger.
Setup permissions using chmod +x /opt/Pinger/bin/*.

Configuration

Use 'AddPinger.sh' to setup the pinger.

Enable Bluetooth on raspberry pi's running alpine linux

Source: https://wiki.alpinelinux.org/wiki/Raspberry_Pi_3_-_Setting_Up_Bluetooth

By default the UART Bluetooth controller is not automatically discovered, enable it by uncommenting the line after rpi bluetooth in /etc/mdev.conf.
Enable the bluetooth service on boot rc-update add bluetooth.
Set AutoEnable to true under Policy in /etc/bluetooth/main.conf.
Then tun'lbu commit' and reboot.