Can the _image_sources directory be excluded in dockerignore #223
Description
This directory is quite large.
- Use du -sh to report how large it is.
- Check if this directory is directly referenced anywhere. Report, and stop if this is the case. It shouldn't be used in automated processes.
- Collect information on building one of the compose targets (dist?) before ignore - report the time, and transfer size.
- Then build again with it ignored and report again the time and transfer size.
- Verify that the site build and serve targets still work.