Jekyll docker file and NGINX default configuration

Dockerfile

# ============================================================
# Build your jekyll blog
# ============================================================
FROM jekyll/jekyll:stable AS build

RUN mkdir /jekyll-minima
WORKDIR /jekyll-minima

# copy the blog source
COPY . .

# permission for bundle to write gemfile.lock
RUN chmod 777 ./

# Install dependencies
RUN bundle install

# Build
RUN bundle exec jekyll build

# ============================================================
# Serve the build files with NGINX
# ============================================================
FROM nginx as nginx

COPY nginx.conf /etc/nginx/conf.d/default.conf

# Copy build files of the blog
COPY --from=build /jekyll-minima/_site /usr/share/nginx/html

EXPOSE 80

nginx.conf

server {
  listen 80 default_server;

  root /usr/share/nginx/html;
  index index.html

  # how long should static files be cached for,
  # see http://nginx.org/en/docs/http/ngx_http_headers_module.html for options.
  expires 1d;
}