FROM ubuntu:focal

RUN apt-get update -qq && \
  apt-get install -y \
  autoconf \
  build-essential \
  git \
  libedit-dev \
  wget

WORKDIR /app

RUN wget https://cache.ruby-lang.org/pub/ruby/3.0/ruby-3.0.0.tar.gz && \
  tar xfz ruby-3.0.0.tar.gz && \
  cd ruby-3.0.0 && \
  autoconf && \
  ./configure --prefix=/opt && \
  make install
