Docker install no files on host mount point

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#1

I have successfully installed xwiki in a docker container and spent a lot of time building pages. I must say xwiki is by far and away the best wiki setup I have tried.

My problem is that whilst the extension directory appears on the host it has no files. Obviously there are files in the container.

Why is this a problem ? I backup the wiki_data directory, so I am not backing up a full xwiki configuration.

Also I cannot (easily) manually add extensions as I have no access to the folder system.

Here is my docker compose file:

services:
  xwiki:
    restart: unless-stopped
    image: xwiki:stable-mariadb-tomcat
    container_name: xwiki
    depends_on:
      - db
    ports:
      - 8080:8080
    env_file:
      - .env
    volumes:
      - /home/me/configs/xwiki/xwiki_data:/usr/local/xwiki
    networks:
      - me_Homehub_internal
  db:
    restart: unless-stopped
    image: mariadb:11.3
    container_name: xwiki-mariadb-db
    volumes:
      - /home/me/configs/xwiki/maria_data:/var/lib/mysql
      - /home/me/configs/xwiki/maria_init/init.sql:/docker-entrypoint-initdb.d/init.sql
    env_file:
      - .env
    command:
      - --character-set-server=utf8mb4
      - --collation-server=utf8mb4_bin
      - --explicit-defaults-for-timestamp=1
    networks:
      - me_Homehub_internal
networks:
  me_Homehub_internal:
    external: true