String operation on env variables on Kubernetes
<p>I have a question regarding Kubernetes YAML string operations.</p>

<p>I need to set an env variable based on the hostname of the container that is deployed and append a port number to this variable.</p>

<pre><code> env:
    - name: MY_POD_NAME
      valueFrom:
        fieldRef:
          fieldPath: metadata.name
</code></pre>

<blockquote>
  <p>How do I create another env variable that uses MY_POD_NAME and makes
  it look like this uri://$MY_POD_NAME:9099/</p>
</blockquote>

<p>This has to be defined as an env variable.  Are there string operations allowed in Kubernetes YAML files?</p>