copy files as list

Dockerfile

@@ -9,9 +9,9 @@ RUN curl -fsSL https://deb.nodesource.com/setup_lts.x | bash -
 RUN apt-get update && apt-get install -y nodejs
 
 WORKDIR /akkounts
-COPY Gemfile /akkounts/Gemfile
-COPY Gemfile.lock /akkounts/Gemfile.lock
-COPY package.json /akkounts/package.json
+
+COPY ["Gemfile", "Gemfile.lock", "package.json", "./"]
+
 RUN bundle install
 RUN gem install foreman
 RUN npm install -g yarn