10 things I love about GitHub Actions (services)

gh-actions-services.yml

services:
  postgres:
    image: postgres:latest
    ports:
      - 5432/tcp

steps:
  - uses: actions/checkout@v2
  - uses: actions/setup-python@v1
    with:
      python-version: 3.8
  - runs: pip install -U -r requirements.txt
  - runs: pytest
    env:
      POSTGRES_PORT: ${{ job.services.postgres.ports['5432'] }}