Allow users to use IssueDeployedToProduction VSA event

Can be used while creating custom VSA stages

changelogs/unreleased/250659-allow-users-to-use-production-stage-end-event.yml

+---
+title: Allow users to use IssueDeployedToProduction VSA event
+merge_request: 51199
+author:
+type: added

lib/gitlab/analytics/cycle_analytics/stage_events.rb

@@ -11,6 +11,7 @@ module Gitlab
         ENUM_MAPPING = {
           StageEvents::IssueCreated => 1,
           StageEvents::IssueFirstMentionedInCommit => 2,
+          StageEvents::IssueDeployedToProduction => 3,
           StageEvents::MergeRequestCreated => 100,
           StageEvents::MergeRequestFirstDeployedToProduction => 101,
           StageEvents::MergeRequestLastBuildFinished => 102,
@@ -18,8 +19,7 @@ module Gitlab
           StageEvents::MergeRequestMerged => 104,
           StageEvents::CodeStageStart => 1_000,
           StageEvents::IssueStageEnd => 1_001,
-          StageEvents::PlanStageStart => 1_002,
-          StageEvents::ProductionStageEnd => 1_003
+          StageEvents::PlanStageStart => 1_002
         }.freeze
 
         EVENTS = ENUM_MAPPING.keys.freeze
@@ -27,8 +27,7 @@ module Gitlab
         INTERNAL_EVENTS = [
           StageEvents::CodeStageStart,
           StageEvents::IssueStageEnd,
-          StageEvents::PlanStageStart,
-          StageEvents::ProductionStageEnd
+          StageEvents::PlanStageStart
         ].freeze
 
         # Defines which start_event and end_event pairs are allowed
@@ -41,7 +40,7 @@ module Gitlab
           ],
           StageEvents::IssueCreated => [
             StageEvents::IssueStageEnd,
-            StageEvents::ProductionStageEnd
+            StageEvents::IssueDeployedToProduction
           ],
           StageEvents::MergeRequestCreated => [
             StageEvents::MergeRequestMerged

lib/gitlab/analytics/cycle_analytics/stage_events/production_stage_end.rb → lib/gitlab/analytics/cycle_analytics/stage_events/issue_deployed_to_production.rb

@@ -4,13 +4,13 @@ module Gitlab
   module Analytics
     module CycleAnalytics
       module StageEvents
-        class ProductionStageEnd < StageEvent
+        class IssueDeployedToProduction < StageEvent
           def self.name
             _("Issue first deployed to production")
           end
 
           def self.identifier
-            :production_stage_end
+            :issue_deployed_to_production
           end
 
           def object_type

spec/lib/gitlab/analytics/cycle_analytics/stage_events/issue_deployed_to_production_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Analytics::CycleAnalytics::StageEvents::IssueDeployedToProduction do
+  it_behaves_like 'value stream analytics event'
+end