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docker-library--ruby/Dockerfile-slim.template
Tianon Gravi 84db4691c0 Adjust RUBYGEMS_VERSION to be fixed at either 3.0.1 or the Ruby-bundled version, whichever is newer
This also adjusts Bundler to be explicitly fixed at either 1.17.2 or the Ruby/Rubygems-bundled version, whichever is newer -- this is slightly older than what we've already pushed (1.17.3), but nothing in the changelog appears to be relevant, so this seems fine: https://github.com/bundler/bundler/compare/v1.17.2...v1.17.3#diff-4ac32a78649ca5bdd8e0ba38b7006a1e

For Ruby 2.6, this means we no longer do anything to the bundled Rubygems (or Bundler), and simply provide whatever comes with the Ruby release as-is, and it is now up to users to explicitly update if they need a newer version than is provided here.
2019-01-04 15:30:47 -08:00

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FROM debian:%%PLACEHOLDER%%
RUN apt-get update \
&& apt-get install -y --no-install-recommends \
bzip2 \
ca-certificates \
libffi-dev \
libgdbm3 \
libssl-dev \
libyaml-dev \
procps \
zlib1g-dev \
&& rm -rf /var/lib/apt/lists/*
# skip installing gem documentation
RUN mkdir -p /usr/local/etc \
&& { \
echo 'install: --no-document'; \
echo 'update: --no-document'; \
} >> /usr/local/etc/gemrc
ENV RUBY_MAJOR %%VERSION%%
ENV RUBY_VERSION %%FULL_VERSION%%
ENV RUBY_DOWNLOAD_SHA256 %%SHA256%%
ENV RUBYGEMS_VERSION %%RUBYGEMS%%
# some of ruby's build scripts are written in ruby
# we purge system ruby later to make sure our final image uses what we just built
RUN set -ex \
\
&& buildDeps=' \
autoconf \
bison \
dpkg-dev \
gcc \
libbz2-dev \
libgdbm-dev \
libglib2.0-dev \
libncurses-dev \
libreadline-dev \
libxml2-dev \
libxslt-dev \
make \
ruby \
wget \
xz-utils \
' \
&& apt-get update \
&& apt-get install -y --no-install-recommends $buildDeps \
&& rm -rf /var/lib/apt/lists/* \
\
&& wget -O ruby.tar.xz "https://cache.ruby-lang.org/pub/ruby/${RUBY_MAJOR%-rc}/ruby-$RUBY_VERSION.tar.xz" \
&& echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum -c - \
\
&& mkdir -p /usr/src/ruby \
&& tar -xJf ruby.tar.xz -C /usr/src/ruby --strip-components=1 \
&& rm ruby.tar.xz \
\
&& cd /usr/src/ruby \
\
# hack in "ENABLE_PATH_CHECK" disabling to suppress:
# warning: Insecure world writable dir
&& { \
echo '#define ENABLE_PATH_CHECK 0'; \
echo; \
cat file.c; \
} > file.c.new \
&& mv file.c.new file.c \
\
&& autoconf \
&& gnuArch="$(dpkg-architecture --query DEB_BUILD_GNU_TYPE)" \
&& ./configure \
--build="$gnuArch" \
--disable-install-doc \
--enable-shared \
&& make -j "$(nproc)" \
&& make install \
\
&& dpkg-query --show --showformat '${package}\n' \
| grep -P '^libreadline\d+$' \
| xargs apt-mark manual \
&& apt-get purge -y --auto-remove $buildDeps \
&& cd / \
&& rm -r /usr/src/ruby \
# make sure bundled "rubygems" is older than RUBYGEMS_VERSION (https://github.com/docker-library/ruby/issues/246)
&& ruby -e 'exit(Gem::Version.create(ENV["RUBYGEMS_VERSION"]) > Gem::Version.create(Gem::VERSION))' \
&& gem update --system "$RUBYGEMS_VERSION" && rm -r /root/.gem/ \
# rough smoke test
&& ruby --version && gem --version && bundle --version
# install things globally, for great justice
# and don't create ".bundle" in all our apps
ENV GEM_HOME /usr/local/bundle
ENV BUNDLE_PATH="$GEM_HOME" \
BUNDLE_SILENCE_ROOT_WARNING=1 \
BUNDLE_APP_CONFIG="$GEM_HOME"
# path recommendation: https://github.com/bundler/bundler/pull/6469#issuecomment-383235438
ENV PATH $GEM_HOME/bin:$BUNDLE_PATH/gems/bin:$PATH
# adjust permissions of a few directories for running "gem install" as an arbitrary user
RUN mkdir -p "$GEM_HOME" && chmod 777 "$GEM_HOME"
# (BUNDLE_PATH = GEM_HOME, no need to mkdir/chown both)
CMD [ "irb" ]