Contents

FROM ruby:2.5.1-alpine

RUN apk add --no-cache --update build-base \
                                linux-headers \
                                git

ENV APP_PATH /opt/project

# Different layer for gems installation
WORKDIR $APP_PATH
COPY . $APP_PATH
RUN bundle install --jobs `expr $(cat /proc/cpuinfo | grep -c "cpu cores") - 1` --retry 3

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
gb_dispatch-0.1.2	Dockerfile
gb_dispatch-0.1.1	Dockerfile
gb_dispatch-0.1.0	Dockerfile