e</code>.</p><pre><code class=language-bash data-expandlinks=true data-repo=istio>$ cat Dockerfile
</code></pre><p>Note that it copies the files
into the container&rsquo;s filesystem and then runs the <code>npm install</code> command you ran in the previous module.
The <code>CMD</code> command instructs Docker to run the <code>ratings</code> service on port <code>9080</code>.</p></li><li><p>Create an environment variable to store your user id which will be used to tag the docker image for <code>ratings</cod