docker-compose.yml

---
version: '3.4'   # docker 17.09.0+  & docker-compose 1.23.2

services:
  backend:  # For CMS & API
    build: ../../GOunite-backend
    command: python3 manage.py runserver 0.0.0.0:8000
    volumes:
      - ../../GOunite-backend:/code
      - ../../GOunite-frontend/dist_integration:/xpc_test:ro
      - ../../static:/static
    ports:
      - 8000:8000  # Dev runserver
      - 8001:8001  # Behave test runner
    depends_on:
      - db
    container_name: backend

  reverse-proxy:
    build: ./reverse-proxy
    ports:
      - 443:443
      - 8080:8080
    depends_on:
      - backend
    volumes:
      - ./reverse-proxy/gounite.conf:/etc/nginx/conf.d/gounite.conf
    container_name: nginx
    networks:
      default:
        aliases:
          - api.gounite.test
          - xpc.gounite.test

  selenium-hub:
    image: selenium/hub:3.141.59-europium
    ports:
      - 4444:4444
    container_name: selenium-hub
    environment:
      - GRID_DEBUG=true

  chrome:
    # https://github.com/SeleniumHQ/docker-selenium#debugging
    #image: selenium/node-chrome-debug:3.141.59-europium
    image: selenium/node-chrome:3.141.59-europium
    volumes:
      - /dev/shm:/dev/shm
    depends_on:
      - selenium-hub
    environment:
      - HUB_HOST=selenium-hub
      - HUB_PORT=4444
      - GRID_DEBUG=true
    ports:  # open VNC port for when using -debug
      - 5900:5900
    container_name: chrome

environment.py

from behave import fixture, use_fixture
from django.test import LiveServerTestCase
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
from splinter.browser import Browser


@fixture(name="fixture.browser.chrome")
def splinter_browser(context):
    context.browser = Browser(
        driver_name="remote",
        url="http://selenium-hub:4444/wd/hub",
        **DesiredCapabilities.CHROME,
    )
    yield context.browser
    context.browser.quit()


def before_feature(context, scenario):
    context.fixtures = [
        "fixtures_subscriptions.json",
        "fixtures_behave.yaml",
        "fixtures_backstopjs.json",
    ]  # behave-django


def before_tag(context, tag):
    if tag == "fixture.browser.chrome":
        use_fixture(splinter_browser, context)  # behave
        LiveServerTestCase.host = "0.0.0.0"  # django
        LiveServerTestCase.port = 8001

nginx.conf

server {
    listen 8080;
    listen 443 ssl;
    server_name api.gounite.dev api.gounite.test;
    set $api_dev api.gounite.dev;
    # Specify Docker DNS resolver when resolving integration test requests
    resolver 127.0.0.11;

    ssl_password_file /etc/nginx/certificates/rootCA.pass;
    ssl_certificate /etc/nginx/certificates/server.crt;
    ssl_certificate_key /etc/nginx/certificates/server.key;

    set $proxy_pass http://backend:8001;
    if ($host = $api_dev) {
        set $proxy_pass http://backend:8000;
    }

    location / {
        rewrite ^/(.*) /api/$1 break;
        proxy_pass $proxy_pass;
        proxy_http_version 1.1;
        proxy_redirect off;
        proxy_set_header Connection "";
        proxy_set_header Host $api_dev;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }
}