Docker 将文件挂载到容器中会清除目录

Question

I have a container that already contains files in a structure like this:

/var/www/html/pages/index.php
/var/www/html/pages/page1.php
/var/www/html/pages/page2.php
...

Now I have a page5.php which I want to mount into that container.

So my idea was:

server:
  image: myapp
volumes:
   - ./pages/page5.php:/var/www/html/pages/page5.php
   - ./pages/page6.php:/var/www/html/pages/page6.php

Which mounted the file in place. Problem now is that all other files in this directory are gone and only page5.php and page6.php are placed in.

I there a way to mount that external files and keep the existing files in this directory?

Answer 1

Its the typical behavior when you mount volumes.

The best would be bring all pages to ./pages/ and the mount to the container

|_pages/
    |_ page1.php
    |_ page2.php
    |_ ...
    |_ page5.php
    |_ page6.php

In docker-compose file

server:
  image: myapp
volumes:
   - ./pages/:/var/www/html/pages/