title: How to pass parameter to shellscript in Dockerfile
body: <p>Below is my Dockerfile</p>
  
  <pre><code>FROM node:11.15-slim
  ARG ENV
  WORKDIR /usr/src/project
  RUN mkdir -p /usr/src/project
  COPY ./release /usr/src/project/
  RUN npm install -g pm2 &amp;&amp; npm install
  EXPOSE 8888
  RUN echo $ENV
  RUN echo $ENV
  RUN echo $ENV
  RUN echo $ENV
  CMD sh start_run.sh $ENV
  </code></pre>
  
  <p>when execute the shellscript in this dockefile, the $ENV seems did not pass to shellscipt.</p>