Node-RED Avahi Docker

docker-compose.yml

version: '2'
services:
  
  nodered1:
    build: .
    ports:
      - "1884:1880"
    restart: always
    environment:
      - TZ=America/Montreal
    volumes:
      - /data

  nodered2:
    build: .
    ports:
      - "1885:1880"
    restart: always
    environment:
      - TZ=America/Montreal
    volumes:
      - /data

Dockerfile

FROM nodered/node-red-docker:0.17.5

USER root

RUN apt-get update
RUN apt-get install -y libavahi-compat-libdnssd-dev avahi-daemon avahi-utils

RUN npm install node-red-node-discovery

COPY start.sh /

ENTRYPOINT ["/start.sh"]

flows1.json

[{"id":"4ea9b737.ddfb58","type":"announce","z":"c076df41.29509","name":"","service":"_http._tcp","port":"3000","txt":"","x":660,"y":120,"wires":[]},{"id":"5ad9fb7c.d2b22c","type":"inject","z":"c076df41.29509","name":"","topic":"","payload":"true","payloadType":"bool","repeat":"","crontab":"","once":false,"x":310,"y":120,"wires":[["4ea9b737.ddfb58"]]},{"id":"783a32b7.53bcac","type":"inject","z":"c076df41.29509","name":"","topic":"","payload":"false","payloadType":"bool","repeat":"","crontab":"","once":false,"x":310,"y":160,"wires":[["4ea9b737.ddfb58"]]}]

flows2.json

[{"id":"43a075e1.cd621c","type":"discovery","z":"c076df41.29509","name":"","topic":"","service":"_http._tcp","x":256,"y":386,"wires":[["ac2f88b5.96fb6"]]},{"id":"ac2f88b5.96fb6","type":"debug","z":"c076df41.29509","name":"","active":true,"console":"false","complete":"false","x":510,"y":380,"wires":[]}]

install.sh

#!/bin/sh
docker cp flows1.json noderedavahi_nodered1_1:/data/flows.json
docker cp flows2.json noderedavahi_nodered2_1:/data/flows.json

docker-compose restart nodered1
docker-compose restart nodered2

start.sh

#!/bin/bash

rm -rf /var/run/avahi-daemon
rm -rf /var/run/dbus
mkdir -p /var/run/dbus
dbus-daemon --system
avahi-daemon --no-chroot -D
npm start -- --userDir /data