Add namespace and project id to Snowplow context

To allow for more detailed analysis, we need to track project
and namespace ids accoring to
https://gitlab.com/gitlab-org/gitlab/-/issues/336779#considered-data-for-pseudonymization
those attributes are not subjected to anonymization or pseudonymization

config/feature_flags/development/add_namespace_and_project_to_snowplow_tracking.yml

+---
+name: add_namespace_and_project_to_snowplow_tracking
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/68277
+rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/338670
+milestone: '14.3'
+type: development
+group: group::product intelligence
+default_enabled: false

lib/gitlab/tracking/standard_context.rb

@@ -8,7 +8,8 @@ module Gitlab
 
       def initialize(namespace: nil, project: nil, user: nil, **extra)
         @namespace = namespace
-        @plan = @namespace&.actual_plan_name
+        @plan = namespace&.actual_plan_name
+        @project = project
         @extra = extra
       end
 
@@ -34,14 +35,29 @@ module Gitlab
 
       private
 
+      attr_accessor :namespace, :project, :extra, :plan
+
       def to_h
         {
           environment: environment,
           source: source,
-          plan: @plan,
-          extra: @extra
+          plan: plan,
+          extra: extra
+        }.merge(project_and_namespace)
+      end
+
+      def project_and_namespace
+        return {} unless ::Feature.enabled?(:add_namespace_and_project_to_snowplow_tracking, default_enabled: :yaml)
+
+        {
+          namespace_id: namespace&.id,
+          project_id: project_id
         }
       end
+
+      def project_id
+        project.is_a?(Integer) ? project : project&.id
+      end
     end
   end
 end

spec/lib/gitlab/tracking/standard_context_spec.rb

@@ -87,8 +87,26 @@ RSpec.describe Gitlab::Tracking::StandardContext do
       end
     end
 
-    it 'does not contain any ids' do
-      expect(snowplow_context.to_json[:data].keys).not_to include(:user_id, :project_id, :namespace_id)
+    it 'does not contain user id' do
+      expect(snowplow_context.to_json[:data].keys).not_to include(:user_id)
+    end
+
+    it 'contains namespace and project ids' do
+      expect(snowplow_context.to_json[:data].keys).to include(:project_id, :namespace_id)
+    end
+
+    it 'accepts just project id as integer' do
+      expect { described_class.new(project: 1).to_context }.not_to raise_error
+    end
+
+    context 'without add_namespace_and_project_to_snowplow_tracking feature' do
+      before do
+        stub_feature_flags(add_namespace_and_project_to_snowplow_tracking: false)
+      end
+
+      it 'does not contain any ids' do
+        expect(snowplow_context.to_json[:data].keys).not_to include(:user_id, :project_id, :namespace_id)
+      end
     end
   end
 end

spec/lib/gitlab/tracking_spec.rb

@@ -47,7 +47,7 @@ RSpec.describe Gitlab::Tracking do
       it "delegates to #{klass} destination" do
         other_context = double(:context)
 
-        project = double(:project)
+        project = build_stubbed(:project)
         user = double(:user)
 
         expect(Gitlab::Tracking::StandardContext)