docker-wagtail-develop/docker-compose.yml

version: '3'

services:
  web:
    build: ./
    working_dir: /code/bakerydemo
    command: 
      - /bin/bash 
      - -c 
      - |
        cd /code/wagtail
        pip install -e .[testing,docs]
        cd /code/bakerydemo
        python manage.py migrate --noinput
        python manage.py load_initial_data
        python manage.py update_index
        python manage.py runserver 0.0.0.0:8000
    volumes:
      - ./wagtail:/code/wagtail:rw
      - ./bakerydemo:/code/bakerydemo:rw
    ports:
      - "8000:8000"
    environment:
      DATABASE_URL: postgres://wagtail:changeme@postgres/wagtail
      PYTHONPATH: /code/wagtail:/code/bakerydemo:$PYTHONPATH
    depends_on:
      - db
      - frontend
  db:
    image: postgres:9.6.2-alpine
    environment:
      POSTGRES_USER: wagtail
      POSTGRES_DB: wagtail
      POSTGRES_PASSWORD: changeme
    restart: always
    expose:
      - "5432"
  frontend:
    image: node:9-slim
    working_dir: /code/wagtail
    volumes:
      - ./wagtail:/code/wagtail:rw
    command:
      - /bin/sh
      - -c
      - |
        npm i npm@latest -g
        npm install
        npm install npm-run-all
        npm install gulp
        npm install webpack
        node node_modules/node-sass/scripts/install.js
        npm rebuild node-sass
        npm run start