Place to cache the jekyll builld dockerfile
docker run -ti --expose 4000 -v "${pwd}:/site" jkamenik/jekyll serve -H 0.0.0.0
Now open localhosst:4000
git clone git@github.com:jkamenik/jekyll.git
cd jekyll
./run build
# This will create a "jkamenik/jekyll:local" image
./run serve test
Now use jkamenik/jekyll:local
as the image.