quay/static/directives/namespace-input.html

<span class="namespace-input-element">
  <input type="text" class="form-control" placeholder="{{ namespaceTitle }}" ng-model="binding"
         required autofocus ng-pattern="usernamePattern"
         ng-model-options="{'debounce': 200}"
         name="namespaceField"
         ng-class="hasExternalError ? 'ng-invalid' : ''">
</span>