Add authentication in elasticsearch high level client for Java

Question

I am using an elasticsearch instance in elastic cloud instance secured with X-PACK.

I had been using the high level rest client before without any problems but I am unable to find how to send the basic authentication header on it.

I have tried to put the credentials as part of the URL but it didn't seem to be able to connect in that case.

Has anyone succeed to connect to a secured elasticsearch with high level rest client?

Bless · Accepted Answer · 2018-01-10 16:41:29Z

54

You can specify the username and password to the Java Low Level REST Client and pass the Low Level REST Client to the RestHighLevelClient instance.

final CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
credentialsProvider.setCredentials(AuthScope.ANY,
        new UsernamePasswordCredentials("user", "password"));

RestClientBuilder builder = RestClient.builder(new HttpHost("localhost", 9200))
        .setHttpClientConfigCallback(new RestClientBuilder.HttpClientConfigCallback() {
            @Override
            public HttpAsyncClientBuilder customizeHttpClient(HttpAsyncClientBuilder httpClientBuilder) {
                return httpClientBuilder.setDefaultCredentialsProvider(credentialsProvider);
            }
        });

RestHighLevelClient client = new RestHighLevelClient(builder);

References:

edited Jan 10, 2018 at 16:41

answered Jan 10, 2018 at 16:10

Bless

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1 Comment

Kasinaat 007 Over a year ago

can you tell me how to do the same thing if I am using search-guard instead of X-Pack?

Shubham Kumar · Accepted Answer · 2022-05-13 05:45:44Z

Follow simple steps for making the RestHighLevelClient ready for connecting TLS+Auth Elastic Search

Create a CredentialsProvider using BasicCredentialsProvider provided by Apache httpclient like below

final CredentialsProvider credentialProvider = new BasicCredentialsProvider();
    credentialProvider.setCredentials(
            AuthScope.ANY,
            new UsernamePasswordCredentials(
                    ES_USERNAME,
                    ES_PASSWORD
            ));

Create a HttpHost provide by apache using Host, Port and Protocol like below

HttpHost httpHost = new HttpHost("ELASTIC_SEARCH_HOST", 9200, "https");

Here I used "https" since TLS is enabled on ES. You can use "http" for normal ES.

And the final step is to create RestHighLevelCLient like below

RestHighLevelClient client = new RestHighLevelClient(RestClient.builder(nodes)
                .setHttpClientConfigCallback(httpAsyncClientBuilder -> {
                            httpAsyncClientBuilder.setDefaultCredentialsProvider(credentialProvider);
                            return httpAsyncClientBuilder;
                        }
                ));

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