It is a container for building with Jekyll. Redcarpet Markdown parser and SSH are bundled. You can connect to GitHub quickly via SSH.
$ mkdir _site
$ docker run -it --rm -v `pwd`/_site:/srv/jekyll/_site \
-v ${HOME}/.ssh/id_rsa:/root/.ssh/id_rsa:ro \
-e GIT_NAME='Your Name' -e GIT_EMAIL='your@email.com' \
danmaq/jekyll-git-redcarpet ash
/srv/jekyll # cd /tmp
/tmp # git clone git@github.com:your/jekyll_site_repo.git
/tmp # cp -r /jekyll_site_repo/* /srv/jekyll
/tmp # cd /srv/jekyll
/srv/jekyll # jekyll s