quay/static/directives/quay-message-bar.html

<div class="announcement inline quay-message-bar-element" ng-show="messages.length">
  <div ng-repeat="message in messages">
      <div class="quay-service-status-description" ng-class="message.severity">
          <span ng-switch on="message.media_type">
            <span ng-switch-when="text/markdown">
                <markdown-view content="message.content"></markdown-view>
            </span>
            <span ng-switch-default>{{ message.content }}</span>
          </span>
      </div>
  </div>
</div>