Install ChirpStack MQTT Forwarder

This section installs the ChirpStack MQTT Forwarder that connects the Concentratord to the MQTT broker. It depends on Concentratord already running (see above).

1. Install the ChirpStack MQTT Forwarder package:

   sudo apt install chirpstack-mqtt-forwarder

2. Write the MQTT Forwarder configuration file:

   cat << EOF | sudo tee /etc/chirpstack-mqtt-forwarder/chirpstack-mqtt-forwarder.toml > /dev/null
   [logging]
     level="info"
     log_to_syslog=false
   
   [backend]
     enabled="concentratord"
   
     [backend.concentratord]
     event_url = "ipc:///tmp/concentratord_event"
     command_url = "ipc:///tmp/concentratord_command"
   
   [mqtt]
     topic_prefix="eu868"
     server="tcp://127.0.0.1:1883"
     username=""
     password=""
     ca_cert=""
     tls_cert=""
     tls_key=""
   EOF

3. Enable and start the service:

   sudo systemctl enable --now chirpstack-mqtt-forwarder

4. Check the service logs to verify successful startup:

   sudo journalctl -fu chirpstack-mqtt-forwarder