I’m trying to use a container with InterSystems IRIS data platform. The container is based on Ubuntu.
I can run the container without problems with a mounted volume bind to the host OS (Windows). I can add, modify or delete files from host OS (Windows) or from within the container (Ubuntu).
My problem starts when I want to put in that shared volume some pieces of the data platform to make them durable. IS IRIS requires that the files belong to certain user/group … I’ve tried to change it but it seems that I cannot change permissions and/or users/groups for folders and files stored in that shared área… is that so or I’m doing anything wrong?
It’s true, when you’re running Docker for Windows, even if you shell into a running docker container that has a volume bind mounted from the host, and try to chown or chmod files therein, the command will silently fail (well, silent on the CLI, maybe logs will be generated, I haven’t looked).
I don’t know if that is considered an issue that will be “fixed”; some say it is just a consequence of the lack of direct correspondence between the Windows ACL system and Linux, and therefore Docker for Windows has no real choice but to work this way.
Some options:
- switch to just copying the information in instead of binding it, if you don’t require it to be “live”
- or change to a sync solution such as docker-sync.io
- or avoid Docker for Windows; run a Linux VM and do your docker work inside of that