Yep worked it out, I attempted to setup WebODM via the .sh file provided on the projects github which attempts to install docker-compose as a docker plugin. I realised that wasn't going to work on unraid so moved on to setting up this plugin to run WebODM via compose but I didn't realise it had created that directory/file. Now that I've deleted the extraneous file all is well. Thanks for the screenshot of your .docker directory @Kilrah this is what I needed to get this working.