many important fixes

drb_counter/Dockerfile

@@ -1,7 +1,15 @@
-FROM ruby:2.3.0-slim
+FROM ruby:2.7-slim
+#NOTE: this file must be built from the parent (../) directory
+# look at the
+#   rebuild-docker.sh
+# script as kind of manual on how the drb_counter cointainer is managed and used
+
 
 # throw errors if Gemfile has been modified since Gemfile.lock
-RUN bundle config --global frozen 1
+#RUN bundle config --global frozen 1
+RUN apt update
+RUN apt install -y curl
+RUN gem install bundler:1.17.3
 
 RUN mkdir -p /usr/src/app
 
@@ -15,14 +23,17 @@ WORKDIR /usr/src/app
 # 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 drb_counter/Gemfile /usr/src/app/
+#COPY drb_counter/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
+#RUN rm -rf /usr/src/app/.bundle
+RUN bundle install
 
-COPY . /usr/src/app
+# COPY THE WHOLE DIRECTORY LATER THAN GEMFILE TO AVOID bundle install step on code change
+COPY drb_counter /usr/src/app
+RUN mkdir -p config
+COPY config/couchdb.yml /usr/src/app/config/couchdb.yml
 
 EXPOSE 9022
-ENTRYPOINT ["ruby", "drb_counter.rb"]
+CMD ["ruby", "drb_counter.rb"]