GitHub actions + Docker Compose example

docker-compose.ci.yml

# CI overrides
version: '3'

services:
  web:
    environment:
      - DATABASE_URL
      - DJANGO_SETTINGS_MODULE
      - SECRET_KEY
      - PORT

docker-compose.override.yml

# Local dev overrides
version: '3'

services:
  web:
    env_file:
      - .env

    # This was the offending line
    volumes:
      - ~/app_name/:/code 

  postgres:
      volumes:
      - pgdata:/var/lib/postgresql/data

volumes:
  pgdata:

docker-compose.yml

# base configuration
version: '3'

services:
  web:
    container_name: backend
    build: .
    ports:
      - "${PORT}:8000"
    depends_on:
      - postgres

  postgres:
    container_name: postgres
    image: postgres
    restart: always
    environment:
      - POSTGRES_PASSWORD=${PG_PASS}
    ports:
      - 5432:5432

github-actions.yml

# GitHub Actions configuration
name: Docker Image CI

on: [push]

jobs:

  build:

    runs-on: ubuntu-latest
    env:
      PG_PASS: ${{ secrets.PG_PASS }}
      DATABASE_URL: postgresql://postgres:${{ secrets.SECRET_PASSWORD }}@postgres/postgres
      DJANGO_SETTINGS_MODULE: app_name.settings.dev
      SECRET_KEY: ${{ secrets.SECRET_KEY }}
      PORT: 8000

    steps:
    - uses: actions/checkout@v1
    - name: Build the docker-compose stack
      run: docker-compose -f docker-compose.yml -f docker-compose.ci.yml up -d
    - name: Check running containers
      run: docker ps -a
    - name: Check logs
      run: docker logs backend
    - name: Run test suite
      run: docker exec backend pytest --skip-auth

Source: https://github.community/t5/GitHub-Actions/How-to-use-docker-compose-with-GitHub-Actions/m-p/38006/highlight/true#M3185