Rename ForwardDeploymentWorker to DropOlderDeploymentsWorker

This commit introduces a new worker DropOlderDeploymentsWorker replacing
ForwardDeploymentWorker as a part of refactoring introduced
in MR https://gitlab.com/gitlab-org/gitlab/-/merge_requests/41214

app/models/deployment.rb

@@ -73,7 +73,7 @@ class Deployment < ApplicationRecord
       next unless deployment.project.forward_deployment_enabled?
 
       deployment.run_after_commit do
-        Deployments::ForwardDeploymentWorker.perform_async(id)
+        Deployments::DropOlderDeploymentsWorker.perform_async(id)
       end
     end
 

app/workers/all_queues.yml

@@ -435,6 +435,14 @@
   :weight: 1
   :idempotent: true
   :tags: []
+- :name: deployment:deployments_drop_older_deployments
+  :feature_category: :continuous_delivery
+  :has_external_dependencies:
+  :urgency: :low
+  :resource_boundary: :unknown
+  :weight: 3
+  :idempotent:
+  :tags: []
 - :name: deployment:deployments_execute_hooks
   :feature_category: :continuous_delivery
   :has_external_dependencies:

app/workers/deployments/drop_older_deployments_worker.rb

+# frozen_string_literal: true
+
+module Deployments
+  class DropOlderDeploymentsWorker # rubocop:disable Scalability/IdempotentWorker
+    include ApplicationWorker
+
+    queue_namespace :deployment
+    feature_category :continuous_delivery
+
+    def perform(deployment_id)
+      Deployments::OlderDeploymentsDropService.new(deployment_id).execute
+    end
+  end
+end

app/workers/deployments/finished_worker.rb

 # frozen_string_literal: true
 
+# This worker is deprecated and will be removed in 14.0
+# See: https://gitlab.com/gitlab-org/gitlab/-/issues/266381
 module Deployments
   class FinishedWorker # rubocop:disable Scalability/IdempotentWorker
     include ApplicationWorker

app/workers/deployments/forward_deployment_worker.rb

 # frozen_string_literal: true
 
+# This worker is deprecated and will be removed in 14.0
+# See: https://gitlab.com/gitlab-org/gitlab/-/issues/266381
 module Deployments
   class ForwardDeploymentWorker # rubocop:disable Scalability/IdempotentWorker
     include ApplicationWorker

app/workers/deployments/success_worker.rb

 # frozen_string_literal: true
 
+# This worker is deprecated and will be removed in 14.0
+# See: https://gitlab.com/gitlab-org/gitlab/-/issues/266381
 module Deployments
   class SuccessWorker # rubocop:disable Scalability/IdempotentWorker
     include ApplicationWorker

spec/models/deployment_spec.rb

@@ -122,8 +122,8 @@ RSpec.describe Deployment do
         deployment.run!
       end
 
-      it 'executes Deployments::ForwardDeploymentWorker asynchronously' do
-        expect(Deployments::ForwardDeploymentWorker)
+      it 'executes Deployments::DropOlderDeploymentsWorker asynchronously' do
+        expect(Deployments::DropOlderDeploymentsWorker)
             .to receive(:perform_async).once.with(deployment.id)
 
         deployment.run!

spec/workers/deployments/drop_older_deployments_worker_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Deployments::DropOlderDeploymentsWorker do
+  subject { described_class.new.perform(deployment&.id) }
+
+  describe '#perform' do
+    let(:deployment) { create(:deployment, :success) }
+
+    it 'executes Deployments::OlderDeploymentsDropService' do
+      expect(Deployments::OlderDeploymentsDropService)
+          .to receive(:new).with(deployment.id).and_call_original
+
+      subject
+    end
+  end
+end