Name or service not known in Tests

[53845714nF]

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Example Code

compose file:

services:
  db:
    restart: "no"
    image: postgres:17.0-alpine
    
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER} -d ${POSTGRES_DB}"]
      interval: 10s
      retries: 5
      start_period: 30s
      timeout: 10s
#    volumes:
#      - app-db-data:/var/lib/postgresql/data/pgdata
    env_file:
      - .env
    environment:
      - PGDATA=/var/lib/postgresql/data/pgdata
      - POSTGRES_USER=${POSTGRES_USER?Variable not set}
      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD?Variable not set}
      - POSTGRES_DB=${POSTGRES_DB?Variable not set}
      - DB_HOST=127.0.0.1

  adminer:
    restart: "no"
    image: adminer
    depends_on:
      - db
    environment:
      - ADMINER_DESIGN=pepa-linha-dark
    ports: 
      - "8080:8080"

  mailcatcher:
    restart: "no"
    image: schickling/mailcatcher
    ports:
      - "1080:1080"
      - "1025:1025"

Action:

  testing:
    needs: linting
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.10"

      - name: Install uv
        uses: astral-sh/setup-uv@v3
        with:
          version: "0.4.15"
          enable-cache: true

      - run: docker compose down -v --remove-orphans
      - run: docker compose up -d db mailcatcher
      - name: Migrate DB
        run: uv run bash scripts/prestart.sh
        working-directory: backend

      - name: Run tests
        run: uv run bash scripts/tests-start.sh "Coverage for ${{ github.sha }}"
        working-directory: backend
      - run: docker compose down -v --remove-orphans
      - name: Store coverage files
        uses: actions/upload-artifact@v4
        with:
          name: coverage-html
          path: backend/htmlcov
          include-hidden-files: true

Description

Hey, I adapt this Template for my project EventTom.
I want to Run Tests but i get the Message:

WARNING:__main__:Finished call to '__main__.init' after 172.587(s), this was the 172nd time calling it.
INFO:__main__:Starting call to '__main__.init', this is the 173rd time calling it.
ERROR:__main__:(psycopg.OperationalError) [Errno -2] Name or service not known
(Background on this error at: https://sqlalche.me/e/20/e3q8)
WARNING:__main__:Finished call to '__main__.init' after 173.596(s), this was the 173rd time calling it.
INFO:__main__:Starting call to '__main__.init', this is the 174th time calling it.
ERROR:__main__:(psycopg.OperationalError) [Errno -2] Name or service not known
(Background on this error at: https://sqlalche.me/e/20/e3q8)
WARNING:__main__:Finished call to '__main__.init' after 174.601(s), this was the 174th time calling it.
INFO:__main__:Starting call to '__main__.init', this is the 175th time calling it.
ERROR:__main__:(psycopg.OperationalError) [Errno -2] Name or service not known
(Background on this error at: https://sqlalche.me/e/20/e3q8)
WARNING:__main__:Finished call to '__main__.init' after 175.607(s), this was the 175th time calling it.
INFO:__main__:Starting call to '__main__.init', this is the 176th time calling it.
ERROR:__main__:(psycopg.OperationalError) [Errno -2] Name or service not known
(Background on this error at: https://sqlalche.me/e/20/e3q8)
WARNING:__main__:Finished call to '__main__.init' after 176.613(s), this was the 176th time calling it.
INFO:__main__:Starting call to '__main__.init', this is the 177th time calling it.
ERROR:__main__:(psycopg.OperationalError) [Errno -2] Name or service not known
(Background on this error at: https://sqlalche.me/e/20/e3q8)

Operating System

Linux

Operating System Details

Debain 12

Python Version

Python 3.12.0 on my machine and Python 3.10 in CI

Additional Context

No response

[53845714nF]

I fix my Problem with setting env variables in the Action.