void setUpCatchAllTemplate() throws IOException {
    AggregatedHttpRequest updateTemplate = AggregatedHttpRequest.of(
      RequestHeaders.of(PUT, catchAllIndexPath(), CONTENT_TYPE, JSON_UTF_8),
      HttpData.ofUtf8(catchAllTemplate()));
    Internal.instance.http(storage).newCall(updateTemplate, (parser, contentString) -> null,
      "update-template").execute();
  }
Create a "catch-all" index template with the lowest priority prior to running tests to ensure
that the index templates created during tests with higher priority function as designed. Only
applicable for ES >= 7.8
zipkin-storage/elasticsearch/src/test/java/zipkin2/elasticsearch/integration/ITEnsureIndexTemplate.java