The documentation on https://hub.docker.com/r/libretranslate/libretranslate was a bit misleading, so here are the proper steps:
Building
git clone https://github.com/uav4geo/LibreTranslatecd LibreTranslatedocker build --no-cache --progress=plain -f docker/Dockerfile --build-arg with_models=true -t libretranslate .The above will take some time to build and download all the dictionaries for offline use.
Running
docker run -it -p 5000:5000 libretranslateThat’s it, Enjoy!
Just Some Techie Notes! 