Github Workflow推送失败但本地运行正常的技术问题求助

我有一个包含API及其他服务的项目，已编写Unittest文件，用于推送到Github仓库时测试API健康状态，测试文件运行在独立Docker容器中，API也部署在容器内。本地执行docker-compose up api-test-runner时测试完全正常，但推送到Github仓库后Workflow执行失败，返回500服务器错误。

当前Workflow存在的问题 #

• 健康检查步骤陷入循环，API服务始终未就绪
• 测试结果检查步骤无法捕获错误，即使测试返回非0退出码也会通过

Workflow文件内容 #

# This is a basic workflow to help you get started with Actions

name: API Test

# Define in which situiations and on what branches the workflow should be ran.
on:
  push:
    branches:
     - "*"
  pull_request:
    branches:
      - "*"

jobs:
  api-test:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3
        
      # Build the docker image
      - name: Build Docker images
        run: docker-compose up --build -d api db

      # Health check to make sure the application is ready to accept requests
      - name: Wait for application to be ready
        run: |
          until curl --silent --fail http://localhost:4000/health; do
            echo 'Waiting for application to be ready...'
            sleep 5
          done

      # Run the python test script in an isolated docker container
      - name: Run API tests
        run: docker-compose up api_test_runner

      # Checks that results of tests passed, if not, throw error.
      - name: Check test results
        run: if [ $? -ne 0 ]; then exit 1; fi

Compose.yaml文件内容 #

# Instructions for running the application
# ======== Basic app startup ========
# 1. start application services: ´docker-compose up api db -d´

# ======== Running API test locally ========
# (Note: application services have to be running before running the tests)
#
# 1. start application services: ´docker-compose up api db -d´
# 2. run tests: ´docker-compose up api_test_runner´

version: '3.9'

services:

  # <======== Application services ========>

  # ======== API container ========
  api:
    container_name: api
    build:
      context: ./app
      dockerfile: Dockerfile
    image: justingav/d0020e:latest
    environment:
      - DB_URL=postgresql://postgres:postgres@db:5432/postgres
    depends_on:
      - db
    volumes:
      - ./app:/app
    ports:
      # ports being listened on
      - "4000:4000"
  # ================================

  # ====== Database container ======
  db:
    container_name: db
    image: postgres:latest
    #volumes:
    #  - /home/upload/data:/var/lib/postgresql/data
    ports:
      - "5432:5432"
    environment:
      - POSTGRES_DB=postgres
      - POSTGRES_USER=postgres
      - POSTGRES_PASSWORD=postgres
    volumes:
      - postgres_data:/var/lib/postgresql/data
  # ================================

  # <========= Test runner service =========>
  api_test_runner:
    container_name: api_test_runner
    build:
      context: ./api_test_runner
      dockerfile: Dockerfile
    volumes:
      - ./api_test_runner:/api_test_runner
    depends_on:
      - db
      - api
    # run tests on startup
    command: [ "python", "-m", "unittest", "api_test" ]
  # ================================

volumes:
  postgres_data: {}

已尝试的排查动作 #

• 增加健康检查步骤等待API就绪，但步骤陷入循环，API始终未就绪
• 查看Docker日志，未找到有效错误线索
• 在API启动代码中添加异常捕获逻辑：

try:
    # Your existing code to start the Flask application
    logging.info('Starting application...')
    api.run(host='0.0.0.0', port=4000)
except Exception as e:
    logging.exception('Failed to start application')

需求 #

目前推测API文件和测试文件无问题，但仍需确认，寻求可行的问题排查方案。

内容的提问来源于stack exchange，提问作者Jay