Add Dockerfile for making html, pdf, ebook

Author: lethee

Dockerfile

@@ -0,0 +1,34 @@
+# This Dockerfile is for making html, ebook, pdf of progit2-ko.
+#
+# Build Locally:
+#   docker build -t progit2-ko .
+#
+# Run Locally Built Image:
+#   docker run -it --rm -v `pwd`:/progit2-ko progit2-ko bash -c 'cd /progit2-ko; bundle exec rake book:build'
+#
+# Pull Image:
+#   docker pull lethee/progit2-ko:latest
+#
+# Run pulled Image:
+#   docker run -it --rm -v `pwd`:/progit2-ko lethee/progit2-ko:latest bash -c 'cd /progit2-ko; bundle exec rake book:build'
+
+FROM ubuntu:focal
+
+ENV DEBIAN_FRONTEND noninteractive
+ENV LC_ALL C.UTF-8
+
+RUN sed -i 's/archive.ubuntu.com/mirror.kakao.com/g' /etc/apt/sources.list
+RUN sed -i 's/security.ubuntu.com/mirror.kakao.com/g' /etc/apt/sources.list
+RUN sed -i 's/extras.ubuntu.com/mirror.kakao.com/g' /etc/apt/sources.list
+
+RUN apt update
+RUN apt install -y --no-install-recommends build-essential
+RUN apt install -y --no-install-recommends git libffi-dev libcurl4 bsdmainutils
+RUN apt install -y --no-install-recommends ruby ruby-dev racc
+RUN gem install bundler
+
+COPY Gemfile Gemfile
+RUN bundle install
+RUN asciidoctor-pdf-cjk-kai_gen_gothic-install
+
+CMD ["/bin/bash"]