Dockerfile

FROM socrata/base
MAINTAINER Socrata <sysadmin@socrata.com>

# 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 2.3
ENV RUBY_VERSION 2.3.6
ENV RUBY_DOWNLOAD_SHA256 e0d969ac22d4a403c1204868bb9c0d068aa35045bb3934cf50b17b7f66059f56
ENV RUBYGEMS_VERSION 3.0.3
ENV BUNDLER_VERSION 1.17.3

# 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=' \
		bison \
		ruby \
		wget \
		autoconf \
		automake \
		bzip2 \
		dpkg-dev \
		file \
		g++ \
		gcc \
		imagemagick \
		libbz2-dev \
		libc6-dev \
		libcurl4-openssl-dev \
		libdb-dev \
		libevent-dev \
		libffi-dev \
		libgdbm-dev \
		libgeoip-dev \
		libglib2.0-dev \
		libjpeg-dev \
		libkrb5-dev \
		liblzma-dev \
		libmagickcore-dev \
		libmagickwand-dev \
		libncurses5-dev \
		libncursesw5-dev \
		libpng-dev \
		libpq-dev \
		libreadline-dev \
		libsqlite3-dev \
		libssl-dev \
		libtool \
		libwebp-dev \
		libxml2-dev \
		libxslt-dev \
		libyaml-dev \
		make \
		patch \
		xz-utils \
		zlib1g-dev \
	'\
	&& 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="$(dpkg-architecture -qDEB_BUILD_GNU_TYPE)" \
	&& ./configure \
		--build="$gnuArch" \
		--disable-install-doc \
		--enable-shared \
	&& make -j "$(nproc)" \
	&& make install \
	\
	&& cd / \
	&& rm -r /usr/src/ruby \
	\
	&& gem update --system "$RUBYGEMS_VERSION" \
	&& gem install bundler --version "$BUNDLER_VERSION" --force \
  && gem install bundler
	&& rm -r /root/.gem/

# LABEL must be last for proper base image discoverability
LABEL repository.socrata/ruby2.3.6=""