Add Dockerfile

Dockerfile

@@ -0,0 +1,14 @@
+# FROM ruby:3.1.4
+FROM ruby:2.7.8
+
+WORKDIR /liquorcabinet
+ENV RACK_ENV=staging
+
+COPY Gemfile Gemfile.lock /liquorcabinet/
+RUN bundle install
+COPY . /liquorcabinet
+COPY ./config.yml.erb.example /liquorcabinet/config.yml.erb
+
+EXPOSE 4567
+
+CMD ["bundle", "exec", "rainbows", "--listen", "0.0.0.0:4567"]