Fix permission/mount issues from #268 (#270)

* make nginx run as root within the container (#268)

* move file to videos path with fallback to regular copy with no metadata copying (#268)

* use `copy_function=shutil.copy` everywhere with `shutil.move`

Dockerfile

@@ -54,12 +54,11 @@ RUN if [ "$INSTALL_DEBUG" ] ; then \
     ; fi
 
 # make folders
-RUN mkdir /cache
-RUN mkdir /youtube
-RUN mkdir /app
+RUN mkdir /cache /youtube /app
 
 # copy config files
 COPY docker_assets/nginx.conf /etc/nginx/sites-available/default
+RUN sed -i 's/^user www\-data\;$/user root\;/' /etc/nginx/nginx.conf
 
 # copy application into container
 COPY ./tubearchivist /app