Avoid to populate version and version type attributes when processing…

… integration metadata and datastream is enabled (#1161)

During PR #1155 the resolution of version and version_type ES parameters was moved from the index only event action tuple creation to the common method. This changed was due to do the intent to collect all integration-aware metadata fields in one place, but the common method is used also by the datastream part this result in populating event and event_type request parameters not only for normal index operations.
During an index operation on a datastream, if one of those parameters is valued, generated an error on ES indexing, resulting in request fail.

This PR move the processing and creation of event and event_type parameters, back in its original position, splitting the capture of integration metadata in 2 parts.

CHANGELOG.md

@@ -1,3 +1,6 @@
+## 11.22.1
+  - Fix, avoid to populate `version` and `version_type` attributes when processing integration metadata and datastream is enabled. [#1161](https://github.com/logstash-plugins/logstash-output-elasticsearch/pull/1161)
+
 ## 11.22.0
   - Added support for propagating event processing metadata when this output is downstream of an Elastic Integration Filter and configured _without_ explicit `version`, `version_type`, or `routing` directives [#1158](https://github.com/logstash-plugins/logstash-output-elasticsearch/pull/1158)
 

lib/logstash/outputs/elasticsearch.rb

@@ -499,6 +499,16 @@ def event_action_tuple(event)
       params[retry_on_conflict_action_name] = @retry_on_conflict
     end
 
+    event_control = event.get("[@metadata][_ingest_document]")
+    event_version, event_version_type = event_control&.values_at("version", "version_type") rescue nil
+
+    resolved_version = resolve_version(event, event_version)
+    resolved_version_type = resolve_version_type(event, event_version_type)
+
+    # avoid to add nil valued key-value pairs
+    params[:version] = resolved_version unless resolved_version.nil?
+    params[:version_type] = resolved_version_type unless resolved_version_type.nil?
+
     EventActionTuple.new(action, params, event)
   end
 
@@ -538,7 +548,7 @@ def initialize(bad_action)
   # @private shared event params factory between index and data_stream mode
   def common_event_params(event)
     event_control = event.get("[@metadata][_ingest_document]")
-    event_id, event_pipeline, event_index, event_routing, event_version, event_version_type = event_control&.values_at("id","pipeline","index", "routing", "version", "version_type") rescue nil
+    event_id, event_pipeline, event_index, event_routing = event_control&.values_at("id","pipeline","index", "routing") rescue nil
 
     params = {
         :_id => resolve_document_id(event, event_id),
@@ -554,12 +564,6 @@ def common_event_params(event)
     #      }
     params[:pipeline] = target_pipeline unless (target_pipeline.nil? || target_pipeline.empty?)
 
-    resolved_version = resolve_version(event, event_version)
-    resolved_version_type = resolve_version_type(event, event_version_type)
-    # avoid to add nil valued key-value pairs
-    params[:version] = resolved_version unless resolved_version.nil?
-    params[:version_type] = resolved_version_type unless resolved_version_type.nil?
-
     params
   end
 

logstash-output-elasticsearch.gemspec

@@ -1,6 +1,6 @@
 Gem::Specification.new do |s|
   s.name            = 'logstash-output-elasticsearch'
-  s.version         = '11.22.0'
+  s.version         = '11.22.1'
   s.licenses        = ['apache-2.0']
   s.summary         = "Stores logs in Elasticsearch"
   s.description     = "This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program"

spec/unit/outputs/elasticsearch_spec.rb

@@ -297,8 +297,19 @@
         context "when the event contains an integration metadata version" do
           let(:event) { LogStash::Event.new({"@metadata" => {"_ingest_document" => {"version" => "456"}}}) }
 
-          it "event's metadata version is used" do
-            expect(subject.send(:event_action_tuple, event)[1]).to include(:version => "456")
+          context "when datastream settings are NOT configured" do
+            it "event's metadata version is used" do
+              expect(subject.send(:event_action_tuple, event)[1]).to include(:version => "456")
+            end
+          end
+
+          context "when datastream settings are configured" do
+            # NOTE: we validate with datastream-specific `data_stream_event_action_tuple`
+            let(:event_fields) { super().merge({"data_stream" => {"type" => "logs", "dataset" => "generic", "namespace" => "default"}}) }
+
+            it "no version is used" do
+              expect(subject.send(:data_stream_event_action_tuple, event)[1]).to_not include(:version)
+            end
           end
         end
 
@@ -315,8 +326,19 @@
         context "when the event contains an integration metadata version_type" do
           let(:event) { LogStash::Event.new({"@metadata" => {"_ingest_document" => {"version_type" => "external"}}}) }
 
-          it "plugin's version_type is used" do
-            expect(subject.send(:event_action_tuple, event)[1]).to include(:version_type => "internal")
+          context "when datastream settings are NOT configured" do
+            it "plugin's version_type is used" do
+              expect(subject.send(:event_action_tuple, event)[1]).to include(:version_type => "internal")
+            end
+          end
+
+          context "when datastream settings are configured" do
+            # NOTE: we validate with datastream-specific `data_stream_event_action_tuple`
+            let(:event_fields) { super().merge({"data_stream" => {"type" => "logs", "dataset" => "generic", "namespace" => "default"}}) }
+
+            it "no version_type is used" do
+              expect(subject.send(:data_stream_event_action_tuple, event)[1]).to_not include(:version_type)
+            end
           end
         end