elasticsearch - 通过代理在公司防火墙后面的Elasticsearch RestHighLevelClient

Question

我正在尝试从需要访问外部请求代理的网络中访问Cloud Elasticsearch安装。这是我用来传递Elasticsearch凭证和我们的代理设置的代码片段:
CredentialsProvider certificateProvider =新的BasicCredentialsProvider();
certificateProvider.setCredentials(AuthScope.ANY，新的UsernamePasswordCredentials(elasticUser，elasticPassword));
RestClientBuilder restClientBuilder = RestClient.builder(新HttpHost(hostName，port，“https”))。setHttpClientConfigCallback(httpClientBuilder-> httpClientBuilder.setDefaultCredentialsProvider(credentialsProvider))。setHttpClientConfigCallback(httpClientBuilder-> httpClientBuilder.setProxy(新HttpHost(proxyURL“，ProxyURL) “http”)));
RestHighLevelClient客户端=新的RestHighLevelClient(restClientBuilder);
这导致来自ES的以下响应:
“线程“主”中的异常” ElasticsearchStatusException [Elasticsearch异常
[类型= security_exception，原因=操作[索引:数据/读取/搜索]需要身份验证]]“”
似乎出于某种原因未通过Elasticsearch凭证。

Answer 1

应该这样做:

RestClientBuilder restClientBuilder = RestClient.builder(new HttpHost(hostName, port, "https"))
    .setHttpClientConfigCallback(clientBuilder -> {
      clientBuilder.setDefaultCredentialsProvider(credentialsProvider);
      clientBuilder.setProxy(new HttpHost(proxyURL, proxyPort, "http"));
      return clientBuilder;
     });