Unable to install extension from folder by providing it as a volume

[Tenoke]

Following the instructions in the README, I'm trying to add my extension as a volume (the folders show up successfully), however, my extension is not detected.

    volumes:
      - /magento-plugin:/var/www/html/app/code/MY_EXTENSION
      - /magento-plugin:/var/www/html/app/code/MY_EXTENSION
      - /magento-plugin:/var/www/html/vendor/magento/module-MY_EXTENSION
      - /magento-plugin:/var/www/html/vendor/MY_EXTENSION/aristanedr
      - /magento-plugin:/var/www/html/vendor/MY_EXTENSION

[Asitis]

I'm having the same issue, did you ever find a solution?