Update

Dockerfile

@@ -1,9 +1,16 @@
 FROM ruby:2.7.1
 
+RUN apt-get update && apt-get install -y
+RUN apt-get install -y nodejs sqlite3
+RUN apt-get install npm -y
+
 WORKDIR /code
 COPY . /code
+
+RUN cd public && npm install
+RUN cd ..
 RUN bundle install
 
 EXPOSE 4567
 
-CMD ["bundle", "exec", "rackup", "--host", "0.0.0.0", "-p", "4567"]
+CMD ["bundle", "exec", "puma", "-p", "4567"]