Dockerfile

FROM ruby:3.3.0-alpine3.18 AS build

RUN apk update && apk upgrade && \
    apk add --no-cache git openssh build-base gcc wget git

COPY Gemfile Gemfile.lock .

RUN gem install bundler -v "$(grep -A 1 "BUNDLED WITH" Gemfile.lock | tail -n 1)" && \
    bundle config set without 'development test' && \
    bundle install

FROM ruby:3.3.0-alpine3.18

RUN apk add --no-cache bash

WORKDIR /opt/test-runner

COPY --from=build /usr/local/bundle /usr/local/bundle

COPY . .

ENTRYPOINT [ "sh", "/opt/test-runner/bin/run.sh" ]