title: Node.js forever with environment variable
body: <p>The command I run on my server to start my node app is:</p>
  
  <pre><code>sudo IS_PROD=1 node app.js
  </code></pre>
  
  <p>I have forever installed but can't seem to pass in the environment variable.</p>
  
  <pre><code>sudo IS_PROD=1 forever node app.js
  </code></pre>
  
  <p>Doesn't seem to do the trick.  I have tried several varieties of this.  How do I either execute this command successfully or permanently set the environment variable?</p>