Builds upon some work by lovely folks in this issue:

home-assistant/core#86588

This tool will publish Juicebox data from a UDP proxy to MQTT discoverable by HomeAssistant.

Hopefully we won't need this if EnelX fixes their API!

• If JuiceBox Local IP is defined, it will run a telnet script to get the EnelX Server and Port.
• If DST is not defined, it will use dig with the CloudFlare DNS (1.1.1.1) to get the IP address of the EnelX Server and avoid a DNS lookup loop.
• If SRC is not defined, it will use ifconfig to get the Local IP address of the Docker.

1. Configure your DNS server running on your network (like Pi-hole or your router) to route all UDP traffic from your JuiceBox to the machine running this proxy. Instructions for how to do this will vary by router. See below for instructions on what EnelX Server you need to override.

2. Place the Dockerfile somewhere on your machine.

3. Add the juicepassproxy service to your Docker Compose file.

   A. Set the build: line to point to the location of the Dockerfile.

   B. Set ports: to the port listed in the UDCP line below.

4. Define the applicable environment variables (see below for details).

5. Start the Docker container.

version: '3.8'

networks:
  default:
    driver: bridge
    ipam:
      config:
        - subnet: 172.16.100.0/24

services:
  juicepassproxy:
    build: ./juicepassproxy
    hostname: juicepassproxy
    container_name: juicepassproxy
    restart: unless-stopped
    logging:
      driver: json-file
    ports:
      - 8047:8047/udp
    environment:
      - JUICEBOX_LOCAL_IP=10.100.50.30
      - MQTT_USER=mosquitto
      - MQTT_PASS=***
      - MQTT_HOST=10.100.200.5
      - DEBUG=true
    volumes:
      - /etc/localtime:/etc/localtime:ro

1. Clone this repository
2. Use Python 3.10+ (I recommend setting up a virtual environment)
3. Install requirements pip install -r requirements.txt
4. Launch by executing python juicepassproxy.py --dst <enelx IP:port> --host <mqtthost> (params documented below)
5. Nothing happens!
6. Configure your DNS server running on your network (like Pi-hole or your router) to route all DNS requests from EnelX to the machine running this proxy. For me this was juicenet-udp-prod3-usa.enelx.com. See below for instructions to determine that.

options:
  -h, --help            show this help message and exit
  -s SRC, --src SRC     Source IP and port, (default: 127.0.0.1:8047)
  -d DST, --dst DST     Destination IP and port of EnelX Server.
  --debug
  -u USER, --user USER  MQTT username
  -P PASSWORD, --password PASSWORD
                        MQTT password
  -H HOST, --host HOST  MQTT hostname to connect to (default: 127.0.0.1)
  -p PORT, --port PORT  MQTT port (default: 1883)
  -D DISCOVERY_PREFIX, --discovery-prefix DISCOVERY_PREFIX
                        Home Assistant MQTT topic prefix (default: homeassistant)
  --name DEVICE_NAME    Home Assistant Device Name (default: Juicebox)

For DST, you should only use the IP address of the EnelX Server and not the fully qualified domain name to avoid DNS lookup loops.

To get the destination IP:Port of the EnelX server, telnet to your Juicenet device: $ telnet 192.168.x.x 2000 and give a list command:

> list
> ! # Type  Info
> # 0 FILE  webapp/index.html-1.4.0.24 (1995, 0)
> # 1 UDPC  juicenet-udp-prod3-usa.enelx.com:8047 (26674)

The address is in the UDPC line. Run, ping, nslookup, or similar command to determine the IP. Currently, juicenet-udp-prod3-usa.enelx.com is 54.161.185.130.