docker - .env 文件被 `docker-compose` 忽略而不是“来源”

Question

案例：我在docker-compose. 文件中的所有变量.env都被忽略并且不会被动态替换，如下所示：

PS C:\workarea\jonathan\myProject> docker-compose up -d myService
time="2021-07-23T15:20:50-04:00" level=warning msg="The XXXXX_URL variable is not set. Defaulting to a blank string."
time="2021-07-23T15:20:50-04:00" level=warning msg="The XXXXX_USER variable is not set. Defaulting to a blank string."
time="2021-07-23T15:20:50-04:00" level=warning msg="The XXXXX_PASSWORD variable is not set. Defaulting to a blank string."
time="2021-07-23T15:20:50-04:00" level=warning msg="The YYYY_URL variable is not set. Defaulting to a blank string."
time="2021-07-23T15:20:50-04:00" level=warning msg="The ZZZ_URL variable is not set. Defaulting to a blank string."
time="2021-07-23T15:20:50-04:00" level=warning msg="The XXXXX_URL variable is not set. Defaulting to a blank string."
time="2021-07-23T15:20:50-04:00" level=warning msg="The XXXXX_USER variable is not set. Defaulting to a blank string."
time="2021-07-23T15:20:50-04:00" level=warning msg="The XXXXX_PASSWORD variable is not set. Defaulting to a blank string."
time="2021-07-23T15:20:50-04:00" level=warning msg="The YYYY_URL variable is not set. Defaulting to a blank string."
time="2021-07-23T15:20:50-04:00" level=warning msg="The ZZZ_URL variable is not set. Defaulting to a blank string."
time="2021-07-23T15:20:50-04:00" level=warning msg="The DDDDD_ROOT_PASSWORD variable is not set. Defaulting to a blank string."
...

环境：

• 视窗 10
• 适用于 Windows 3.5.2 的 Docker 桌面 (66501)
• WSL 2
• 编写 1.29.2

标签： dockerdocker-compose

Answer 1

该解决方案包括禁用Use Docker Compose V2设置>实验功能，然后“应用并重新启动”：

警告：尽管未选中此选项，但 Docker 碰巧在没有任何用户操作的情况下重新启用它。我在两台不同的笔记本电脑上多次遇到这种情况。