Docker Image – Ruby 2.6.2 / Alpine Linux 3.9

Dockerfile

FROM ruby:2.6.2-alpine3.9
LABEL Version 2.6.2
LABEL Name Ruby-Node-Browsers

RUN gem install bundler -v 1.17.3 \
  && gem cleanup all

RUN apk add --no-cache --update \
  bash \
  build-base \
  curl \
  curl-dev \
  fontconfig \
  git \
  linux-headers \
  nodejs \
  postgresql-client \
  postgresql-dev \
  openssh \
  tzdata

# install dockerize
RUN DOCKERIZE_URL="https://circle-downloads.s3.amazonaws.com/circleci-images/cache/linux-amd64/dockerize-latest.tar.gz" \
  && curl --silent --show-error --location --fail --retry 3 --output /tmp/dockerize-linux-amd64.tar.gz $DOCKERIZE_URL \
  && tar -C /usr/local/bin -xzvf /tmp/dockerize-linux-amd64.tar.gz \
  && rm -rf /tmp/dockerize-linux-amd64.tar.gz \
  && dockerize --version

# install phantomjs
RUN mkdir -p /usr/share \
  && cd /usr/share \
  && curl --silent --show-error --location --fail --retry 3 https://github.com/Overbryd/docker-phantomjs-alpine/releases/download/2.11/phantomjs-alpine-x86_64.tar.bz2 | tar xj \
  && ln -s /usr/share/phantomjs/phantomjs /usr/bin/phantomjs \
  && phantomjs --version

RUN apk del curl