title: How to install kerberos client in docker?
body: <p>I am trying to create <code>Docker</code> image by next <code>Dockerfile</code>. It must to install <code>Kerberos</code> client.</p>
  
  <p><strong>Dockerfile</strong>:</p>
  
  <pre><code>FROM node:latest
  
  RUN export DEBIAN_FRONTEND=noninteractive
  
  RUN apt-get -qq update
  RUN apt-get -qq install krb5-user libpam-krb5
  RUN apt-get -qq clean
  
  COPY / ./
  
  EXPOSE 3000
  
  CMD ["npm", "start"]
  </code></pre>
  
  <p>Next command <code>RUN apt-get -qq install krb5-user libpam-krb5</code> from Dockerfile ask me to enter the value to interactive prompt which looks like:</p>
  
  <pre><code>Default Kerberos version 5 realm: 
  </code></pre>
  
  <p>The point is that the command does not terminate even if I write value and press enter. Whats wrong and how to fix it?</p>