title: In Elasticsearch where to generate keystore and add authentication in readonlyrest plugin?
body: <p>I am trying to add password authentication in my elasticsearch cluster using <a href="https://github.com/sscarduzio/elasticsearch-readonlyrest-plugin" rel="nofollow noreferrer">readonlyrest</a> plugin. I installed the plugin successfully now i am trying to configure my configuration file(.yml file) but there In case 0 they are using a keystore see below</p>
  
  <pre><code>http.type: ssl_netty4
  readonlyrest:
  enable: true
  
  ssl:
    enable: true
    keystore_file: "/elasticsearch/plugins/readonlyrest/keystore.jks"
    keystore_pass: readonlyrest
    key_pass: readonlyrest
  </code></pre>
  
  <p>Can anyone please tell me from where i can <code>generate this keystore</code> and also <code>where is the username and password authentication parameters set in this plugin</code>.</p>