-control"
                ng-model="data.extra_config[config_namespace].exporters.stackdriver.metrics_prefix"
                placeholder="krakend">
              </div>
            </div>
        </div>
        <div class="form-group">
          <div class="row">
            <div class="col-md-6">
              <label class="control-label">Labels</label>
              <input class="form-control"
              placeholder="label-name"
              type="text"
              ng-model="label_key">
           