Python GitLab CI mysql连接

我正在尝试使用他们的共享跑步者连接到MySQL。我编写了以下代码：

app.config['SQLALCHEMY_DATABASE_URI'] = 'mysql://' +  db_username + ":" + db_password + "@" + db_host + ":" + db_port + "/" + db_name + "?host="+ db_host + "?port=" + db_port

db_username = XXX
db_password = XXX
db_host = mysql
db_port = 3306
db_name = XXX

以及下面的.gitlab-ci.yml：

image: python:3.6-stretch

services:
  - mysql:latest

variables:
  FLASK_APP: "program.py"
  MYSQL_DATABASE: XXX
  MYSQL_ROOT_PASSWORD: "XXX"

install_dependencies:
  stage: build
  script:
    - apt update && apt upgrade -y
    - pip install pipenv
    - pipenv install

run_unit_tests:
  stage: test
  script:
    - apt update && apt upgrade -y
    - pip install pipenv
    - pipenv install
    - pipenv run pytest -s

运行程序启动时，运行单元测试作业中出现以下错误：

'Can\'t connect to local MySQL server through socket \'/var/run/mysqld/mysqld.sock\' 

---

您是否已将python应用程序配置为使用db主机

mysql

Host: mysql
User: root

如果这没有帮助，请先尝试在python映像中安装

mysql客户端

：

install_dependencies:
  stage: build
  script:
    - apt update && apt upgrade -y && apt install -y mysql-client
    - pip install pipenv
    - pipenv install