FROM ubuntu:22.04 RUN apt-get update -q \ && apt-get install -y g++ gcc git make curl zlib1g-dev libssl-dev locales \ && apt-get autoremove -yq \ && apt-get clean -yqq \ && rm -rf /var/lib/apt/lists/* ENV LANG C.UTF-8 ENV LANGUAGE C ENV LC_ALL C.UTF-8 ENV RUBY_VERSION 2.7.5 # Ruby 2.7.x and 3.0.x can not build against OpenSSL 3.0 which is the # version with Ubuntu 22.04. This workaround installs OpenSSL 1.1.1q # from source and builds. # # For further details see: # - https://bugs.ruby-lang.org/issues/18658 # - https://github.com/rbenv/ruby-build/pull/1974 RUN curl -fsSL "https://www.openssl.org/source/openssl-1.1.1q.tar.gz" | tar -xzC /tmp \ && cd /tmp/openssl-1.1.1q \ && ./config --prefix=/usr/local/openssl --openssldir=/usr/local/openssl shared zlib \ && make \ && make install \ && cd / \ && rm -rf /tmp/openssl-1.1.1q /usr/local/openssl/certs \ && ln -s /etc/ssl/certs /usr/local/openssl/ RUN curl -fsSL "https://cache.ruby-lang.org/pub/ruby/2.7/ruby-${RUBY_VERSION}.tar.gz" \ | tar -xzC /tmp \ && cd "/tmp/ruby-${RUBY_VERSION}" \ && ./configure --disable-install-rdoc --disable-install-doc --disable-install-capi --with-openssl-dir=/usr/local/openssl \ && make \ && make install \ && cd / \ && rm -rf "/tmp/ruby-${RUBY_VERSION}" \ && gem install bundler --no-document --version 2.2.33