title: Get .pem files in kubernetes with secret certificate
body: <p>I have two .pem files, one public and one private, that I want to use in my Rancher kubernetes cluster as a secret.  In the API, I have gone to Resource->Secrets->Certificates and added the certificate with the name <code>cenc-encryption-certificate</code>.  In my YAML, I've added the following information</p>
  
  <pre><code>  - mountPath: /etc/ssl/certs
      name: cenc-encryption-certificate
      readOnly: true
  
  
  volumes:
  - name: cenc-encryption-certificate
    secret: 
      defaultMode: 420
      optional: false
      secretName: cenc-encryption-certificate
  </code></pre>
  
  <p>This loads up, but doesn't put the certificate on the file system.  I believe I need a key/path in items, but I don't know what value those should be.  How do I get the .pem files into my container?</p>