93 lines
2.6 KiB
Plaintext
93 lines
2.6 KiB
Plaintext
FROM buildpack-deps:%%PLACEHOLDER%%
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# skip installing gem documentation
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RUN set -eux; \
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mkdir -p /usr/local/etc; \
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{ \
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echo 'install: --no-document'; \
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echo 'update: --no-document'; \
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} >> /usr/local/etc/gemrc
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ENV LANG C.UTF-8
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ENV RUBY_MAJOR %%VERSION%%
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ENV RUBY_VERSION %%FULL_VERSION%%
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ENV RUBY_DOWNLOAD_SHA256 %%SHA256%%
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ENV RUBYGEMS_VERSION %%RUBYGEMS%%
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# some of ruby's build scripts are written in ruby
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# we purge system ruby later to make sure our final image uses what we just built
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RUN set -eux; \
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\
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savedAptMark="$(apt-mark showmanual)"; \
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apt-get update; \
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apt-get install -y --no-install-recommends \
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bison \
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dpkg-dev \
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libgdbm-dev \
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ruby \
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; \
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rm -rf /var/lib/apt/lists/*; \
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\
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wget -O ruby.tar.xz "https://cache.ruby-lang.org/pub/ruby/${RUBY_MAJOR%-rc}/ruby-$RUBY_VERSION.tar.xz"; \
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echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
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\
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mkdir -p /usr/src/ruby; \
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tar -xJf ruby.tar.xz -C /usr/src/ruby --strip-components=1; \
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rm ruby.tar.xz; \
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\
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cd /usr/src/ruby; \
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\
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# hack in "ENABLE_PATH_CHECK" disabling to suppress:
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# warning: Insecure world writable dir
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{ \
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echo '#define ENABLE_PATH_CHECK 0'; \
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echo; \
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cat file.c; \
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} > file.c.new; \
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mv file.c.new file.c; \
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\
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autoconf; \
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gnuArch="$(dpkg-architecture --query DEB_BUILD_GNU_TYPE)"; \
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./configure \
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--build="$gnuArch" \
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--disable-install-doc \
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--enable-shared \
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; \
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make -j "$(nproc)"; \
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make install; \
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\
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apt-mark auto '.*' > /dev/null; \
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apt-mark manual $savedAptMark > /dev/null; \
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find /usr/local -type f -executable -not \( -name '*tkinter*' \) -exec ldd '{}' ';' \
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| awk '/=>/ { print $(NF-1) }' \
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| sort -u \
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| xargs -r dpkg-query --search \
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| cut -d: -f1 \
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| sort -u \
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| xargs -r apt-mark manual \
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; \
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apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
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\
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cd /; \
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rm -r /usr/src/ruby; \
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# make sure bundled "rubygems" is older than RUBYGEMS_VERSION (https://github.com/docker-library/ruby/issues/246)
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ruby -e 'exit(Gem::Version.create(ENV["RUBYGEMS_VERSION"]) > Gem::Version.create(Gem::VERSION))'; \
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gem update --system "$RUBYGEMS_VERSION" && rm -r /root/.gem/; \
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# verify we have no "ruby" packages installed
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! dpkg -l | grep -i ruby; \
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[ "$(command -v ruby)" = '/usr/local/bin/ruby' ]; \
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# rough smoke test
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ruby --version; \
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gem --version; \
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bundle --version
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# don't create ".bundle" in all our apps
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ENV GEM_HOME /usr/local/bundle
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ENV BUNDLE_SILENCE_ROOT_WARNING=1 \
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BUNDLE_APP_CONFIG="$GEM_HOME"
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ENV PATH $GEM_HOME/bin:$PATH
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# adjust permissions of a few directories for running "gem install" as an arbitrary user
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RUN mkdir -p "$GEM_HOME" && chmod 777 "$GEM_HOME"
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CMD [ "irb" ]
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