title: Architecture patterns for low traffic and high availability web application
body: <p>We have an enterprise app which holds highly sensitive data and security is big concern so we ended up building a monolith on physical servers and now we are scaling slowly with few microservices but major chunk of the app is still a monolith</p>
  
  <p>Because of our business needs we need to scale our app for high availability(99.999 uptime) <strong>but unlike other systems we don't have high traffic.</strong></p>
  
  <p>I Googled a lot but most of the materials are targeted around high availability with high traffic with high complexity.</p>
  
  <p>Our Application stack</p>
  
  <ul>
  <li>RHEL OS,Rails,Mysql,phusion passenger</li>
  </ul>
  
  <p>Even if you provide me a link to examples(with design) of such apps where above architecture is used that would be useful</p>