Dockerfile

FROM ruby:2.7.1-alpine

ENV BUNDLER_VERSION=2.1.4

RUN apk add --update --no-cache \
  binutils-gold \
  build-base \
  curl \
  file \
  g++ \
  gcc \
  git \
  less \
  libstdc++ \
  libffi-dev \
  libc-dev \
  linux-headers \
  libxml2-dev \
  libxslt-dev \
  libgcrypt-dev \
  make \
  netcat-openbsd \  
  openssl \
  nodejs \
  pkgconfig \
  postgresql-dev \
  tzdata \
  yarn

RUN gem install bundler -v 2.1.4