Before using this script do a backup of your vtt-data. This is a work in progress. The script works only in the current folder, a timestamped subfolder and the given folders.
A script to run FoundryVTT in a docker container.
Grab the download link and execute
vtt_docker <the-download-link> <the-folder-with-the-vtt-data> <the-backup-folder> [<the-folder-with-the-application-versions>]This will download the application, create a Dockerfile-<version> and a docker image vtt:<version>. At the end a container named vtt-<vtt-data-folder-name>-<version> is created and started.
In the docker container at /vtt and in the vtt-data-folder a VTT_VERSION.txt file containing the applications version. The version is the vtt-data-folder is verified when creating a container. That version is update after a backup was executed.