命令“ / bin / sh -c gem install jekyll”返回了非零代码：1

Question

下面是我的dockerfile，当我运行命令docker build -t image-name .时，它给我错误为The command '/bin/sh -c gem install jekyll' returned a non-zero code: 1

我已经从网上复制了dockerfile并添加到我的静态站点，但不确定要更改什么才能构建映像并运行，请问有人可以帮我吗？

FROM ruby:2.4.1 as jekyll-base


#RUN apk-get add --no-cache build-base gcc bash cmake git

RUN gem install jekyll

EXPOSE 4000

WORKDIR /site

ENTRYPOINT [ "bundle", "exec", "jekyll" ]

CMD [ "--help" ]

##
##
## New stage in multi-stage image
FROM jekyll-base

# create new site by setting -e JEKYLL_NEW=true
ENV JEKYLL_NEW false

#COPY docker-entrypoint.sh /usr/local/bin/
#
## on every container start we'l'
#ENTRYPOINT [ "docker-entrypoint.sh" ]

CMD [ "bundle", "exec", "jekyll", "serve", "--force_polling", "-H", "0.0.0.0", "-P", "4000" ]