API（DRF）Azure管道中的docker容器仅在单元测试中无法访问辅助DB SQL-SERVER

在我的开发和生产环境中，停靠的DRF-API运行良好。但是，当在Azure Pipelines for CI/CD中构建相同的代码时，容器无法建立到SQL-SERVER的连接，SQL-SERVER用于在测试步骤中查询数据（没有API的主数据库）

要构建容器，请执行以下步骤：

- task: Docker@2
inputs:
  command: build
  Dockerfile: '**/Dockerfile'
  containerRegistry: reg
  repository: $(repo)
  tags: $(imageTag)
displayName: 'Build Docker'

运行容器和测试的管道：

- script: |
  docker run --name $(test_container) -p 8000:8000 $(name)/$(name2):dev &
  docker start $(test_container)
  sleep 10
  docker exec $(test_container) python src/manage.py test myapp --no-input --verbosity=3

我得到一个错误：

    Adding permission 'Permission object (49)
    Adding permission 'Permission object (50)
    Adding permission 'Permission object (51)
    Adding permission 'Permission object (52)
    Creating test database for alias 'my_sql_server' ('test_my_SQL_DB')...
    Traceback (most recent call last):
      File "/usr/local/lib/python3.7/site-packages/django/db/backends/base/base.py", line 216, in ensure_connection
        self.connect()
      File "/usr/local/lib/python3.7/site-packages/django/db/backends/base/base.py", line 194, in connect
        self.connection = self.get_new_connection(conn_params)
      File "/usr/local/lib/python3.7/site-packages/sql_server/pyodbc/base.py", line 307, in get_new_connection
        timeout=timeout)
    pyodbc.OperationalError: ('08001', '[08001] [FreeTDS][SQL Server]Unable to connect to data source (0) (SQLDriverConnect)')

我将此图像用于Docker文件：

FROM  nickgryg/alpine-pandas:latest

这是ODBC的配置：

    [FreeTDS]
    Description=FreeTDS Driver
    Driver=/usr/lib/libtdsodbc.so
    TDS_Version=7.4

---

有什么想法吗？

似乎需要在

/etc/freetds/freetds.conf

 [<sql details>]
    host = <host of the sql server>
    port = <port of the sql server>
    tds version = 7.4

[]
主机=
端口=
tds版本=7.4