ambari/ambari-web/app/templates/main/admin/highAvailability.hbs

{{!
* Licensed to the Apache Software Foundation (ASF) under one
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* to you under the Apache License, Version 2.0 (the
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<div>
  {{#if view.isHighAvailabilityEnabled}}
    <p class="text-success">
      {{t admin.highAvailability.enabled}}
    </p>
  {{else}}
    {{#if controller.dataIsLoaded}}
      <p class="muted">
        {{t admin.highAvailability.disabled}}
        <a class="btn btn-padding btn-success" {{action enableHighAvailability target="controller"}}>{{t admin.highAvailability.button.enable}}</a>
      </p>
    {{else}}
      <div class="spinner"></div>
    {{/if}}
  {{/if}}
</div>