title: Linux Package installation in Kubernetes pods
body: <p>I am running airflow pods and I am facing issue with installing package in pod</p>
  <p>When I exec into a pod, I cannot run the following command</p>
  <pre><code>ps aux | grep airflow
  </code></pre>
  <p>Then</p>
  <p>I used</p>
  <pre><code>apt-get update &amp;&amp; apt-get install procps
  </code></pre>
  <p>but it is throwing this error</p>
  <pre><code>Reading package lists... Done
  E: Could not open lock file /var/lib/apt/lists/lock - open (13: Permission denied)
  E: Unable to lock directory /var/lib/apt/lists/
  </code></pre>
  <p>Any ideas to resolve this?
  Thanks</p>