[destination-elasticsearch] Adding path prefix to connector's host (#58586)

Co-authored-by: Marcos Marx <marcosmarxm@users.noreply.github.com>
Co-authored-by: Octavia Squidington III <octavia-squidington-iii@users.noreply.github.com>
Co-authored-by: Edward Gao <edward.gao@airbyte.io>

airbyte-integrations/connectors/destination-elasticsearch/metadata.yaml

@@ -4,7 +4,7 @@ data:
   connectorSubtype: api
   connectorType: destination
   definitionId: 68f351a7-2745-4bef-ad7f-996b8e51bb8c
-  dockerImageTag: 0.1.6
+  dockerImageTag: 0.2.0
   dockerRepository: airbyte/destination-elasticsearch
   githubIssueLabel: destination-elasticsearch
   icon: elasticsearch.svg

airbyte-integrations/connectors/destination-elasticsearch/src/main/java/io/airbyte/integrations/destination/elasticsearch/ConnectorConfiguration.java

@@ -19,6 +19,7 @@ public class ConnectorConfiguration {
   private boolean upsert;
   @JsonProperty("ca_certificate")
   private String caCertificate;
+  private String pathPrefix;
   private AuthenticationMethod authenticationMethod = new AuthenticationMethod();
 
   public static ConnectorConfiguration fromJsonNode(JsonNode config) {

airbyte-integrations/connectors/destination-elasticsearch/src/main/java/io/airbyte/integrations/destination/elasticsearch/ElasticsearchConnection.java

@@ -58,7 +58,12 @@ public class ElasticsearchConnection {
 
     // Create the low-level client
     httpHost = HttpHost.create(config.getEndpoint());
-    final RestClientBuilder builder = RestClient.builder(httpHost);
+    final RestClientBuilder builder;
+    if (config.getPathPrefix() != null) {
+      builder = RestClient.builder(httpHost).setPathPrefix(config.getPathPrefix());
+    } else {
+      builder = RestClient.builder(httpHost);
+    }
 
     // Set custom user's certificate if provided
     if (config.getCaCertificate() != null && !config.getCaCertificate().isEmpty()) {

airbyte-integrations/connectors/destination-elasticsearch/src/main/resources/spec.json

@@ -17,6 +17,11 @@
         "type": "string",
         "description": "The full url of the Elasticsearch server"
       },
+      "pathPrefix": {
+        "title": "Server path prefix",
+        "type": "string",
+        "description": "The Path Prefix of the Elasticsearch server"
+      },
       "upsert": {
         "type": "boolean",
         "title": "Upsert Records",