🐳 GitHub Pages용 Jekyll 블로그를 Docker로 세팅하기 — 삽질 끝에 완성한 깔끔한 구성

FROM ruby:3.2.3-slim

RUN apt-get update -qq && \
    apt-get install -y build-essential libpq-dev nodejs npm

RUN gem install bundler -v 2.6.9

WORKDIR /srv/jekyll

COPY Gemfile* ./

RUN bundle install

COPY . .

EXPOSE 4000

CMD ["bundle", "exec", "jekyll", "serve", "--host", "0.0.0.0", "--force_polling", "--livereload"]

services:
  site:
    image: my-jekyll
    platform: linux/arm64
    command: bundle exec jekyll serve --host 0.0.0.0 --force_polling --livereload
    ports:
      - "4000:4000"
      - "35729:35729"
    volumes:
      - .:/srv/jekyll
      - ./vendor/bundle:/usr/local/bundle
    working_dir: /srv/jekyll
    environment:
      - JEKYLL_ENV=development

source "https://rubygems.org"

gem "jekyll", "~> 4.3.3"
gem "csv", "~> 3.3.5"
gem "base64", "~> 0.2.0"
gem "logger", "~> 1.6.0"

group :jekyll_plugins do
  gem "jekyll-feed", "~> 0.17.0"
  gem "jekyll-seo-tag", "~> 2.8.0"
end

# Windows and JRuby does not include zoneinfo files, so bundle the tzinfo-data gem
# and associated library.
platforms :mingw, :x64_mingw, :mswin, :jruby do
  gem "tzinfo", ">= 1", "< 3"
  gem "tzinfo-data"
end

# Performance-booster for watching directories on Windows
gem "wdm", "~> 0.1.1", :platforms => [:mingw, :x64_mingw, :mswin]

# Lock `http_parser.rb` gem to `v0.6.x` on JRuby builds since newer versions of the gem
# do not have a Java counterpart.
gem "http_parser.rb", "~> 0.6.0", :platforms => [:jruby]

# Add webrick as it's no longer bundled with Ruby
gem "webrick", "~> 1.8"