Dedicated volume/mount for filesystem attachment storage break startup

[lasat]

Infos

• Docker version: 20.10.14
• Docker-compose version: 1.29.2
• Operating system (Docker host): Debian 11

Expected behavior

I tried to add a new volume to /opt/zammad/storage/fs to save attachments on external volume and expect that this location is protected from being overwritten and zammad-init container is able to handle it .

Actual behavior

zammad-init container failed during rsync zammad files from tmp into /opt/zammad. '/storage/fs' is excluded from sync (containers/zammad/docker-entrypoint.sh line 43) but the --delete option of rsync tries to cleanup the destination and fail.

Steps to reproduce the behavior

Add a volume to zammad-init container.

  zammad-init:
    command: ["zammad-init"]
    ...
    volumes:
      - zammad-data:/opt/zammad
      - ./storage:/opt/zammad/storage/fs