#This assumes you have docker installed
#It also assumes you have docker-compose installed, if you don't then follow these instructions: https://withblue.ink/2017/12/31/yes-you-can-run-docker-on-raspbian.html

#create your docker folder
sudo mkdir /docker

#set the ownership of the folder to the pi user
sudo chmod pi:pi /docker

#create a zigbee2mqtt folder
mkdir /docker/zigbee2mqtt

#plug in your zigbee usb device and find the serial of the device:
ls /dev/serial/by-id/
#it probably looks something like this: usb-Texas_Instruments_TI_CC2531_USB_CDC___0X00124B0014D9E26D-if00

#Go to your new directory
cd /docker/zigbee2mqtt

#create a docker-compose file for zigbee2mqtt
nano docker-compose.yaml

#paste the following configuration and add your own zigbee usb device serial under devices between by-id and :/dev/ttyACM0:rwm
version: '2.1'
services:
  zigbee2mqtt:
    container_name: zigbee2mqtt
    image: koenkk/zigbee2mqtt:arm32v6
    volumes:
      - /docker/zigbee2mqtt/data:/app/data
    devices:
      - /dev/serial/by-id/usb-Texas_Instruments_TI_CC2531_USB_CDC___0X00124B0014D9E26D-if00:/dev/ttyACM0:rwm
    restart: always

#save the file (ctrl + x then y)
#pull the image
docker-compose pull

#create and startup the container
docker-compose up -d

#give it a minute or two then shutdown the container
docker-compose stop

#there should now be a data folder with a configuration.yaml file inside
ls -al

#edit the configuration.yaml
nano data/configuration.yaml

#replace the contents with this:
homeassistant: true
permit_join: true
mqtt:
  base_topic: zigbee2mqtt
  server: 'mqtt://127.0.0.1' #assuming hassio is on the same RPI
  user: homeassistant #set your hassio username
  password: yourpassword #set your hassio password
serial:
  port: /dev/ttyACM0

#this will setup zigbee2mqtt correctly (the hassio part isn't quite done yet)
#start zigbee2mqtt again and try and pair some zigbee devices to it.
docker-compose start

#you can confirm devices have joined by either looking at or watching the log files
cat data/log/[DATE]/log.txt
#or
tail -f data/log/[date]/log.txt