dockerize faye and counters

drb_counter/Dockerfile

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+FROM ruby:2.2.0
+
+# throw errors if Gemfile has been modified since Gemfile.lock
+RUN bundle config --global frozen 1
+
+RUN mkdir -p /usr/src/app
+
+WORKDIR /usr/src/app
+
+# Test
+#RUN apt-get update && apt-get install -y qt5-default libqt5webkit5-dev --no-install-recommends && rm -rf /var/lib/apt/lists/*
+# Standard
+#RUN apt-get update && apt-get install -y nodejs --no-install-recommends && rm -rf /var/lib/apt/lists/*
+#RUN apt-get update && apt-get install -y mysql-client postgresql-client sqlite3 --no-install-recommends && rm -rf /var/lib/apt/lists/*
+# Specific
+#RUN apt-get update && apt-get install -y dos2unix --no-install-recommends && rm -rf /var/lib/apt/lists/*
+
+COPY Gemfile /usr/src/app/
+COPY Gemfile.lock /usr/src/app/
+#COPY  vendor/cache /usr/src/app/vendor/cache
+#RUN bundle install --local
+RUN rm -rf /usr/src/app/.bundle
+RUN bundle install
+
+COPY . /usr/src/app
+
+EXPOSE 9022
+CMD ["ruby", "drb_counter.rb"]