This is a helpful to run Jekyll projects in a dockerized dev server so that the host does not have to install all the ruby deps.

First write a small dockerfile like this…

FROM jekyll/jekyll:3.8
COPY Gemfile .
RUN bundle install
CMD ["bundle", "exec", "jekyll", "serve", "--port=4000", "--host="]

NOTE: you must pass the to the jekyll serve command because other wise docker won’t pick it up when port mapping

build it…

docker build . --tag jekyll-dev

Then run it…

docker run -it --rm --publish="4000:4000" --volume="$(pwd)":/srv/jekyll jekyll-dev

make a change and you should see a “live reload”

– jake