Remove group_authorized_agents feature flag

Changelog: added

app/finders/clusters/deployable_agents_finder.rb

-# frozen_string_literal: true
-
-module Clusters
-  class DeployableAgentsFinder
-    def initialize(project)
-      @project = project
-    end
-
-    def execute
-      project.cluster_agents.ordered_by_name
-    end
-
-    private
-
-    attr_reader :project
-  end
-end

app/models/ci/pipeline.rb

@@ -1277,11 +1277,7 @@ module Ci
 
     def authorized_cluster_agents
       strong_memoize(:authorized_cluster_agents) do
-        if ::Feature.enabled?(:group_authorized_agents, project, default_enabled: :yaml)
         ::Clusters::AgentAuthorizationsFinder.new(project).execute.map(&:agent)
-        else
-          ::Clusters::DeployableAgentsFinder.new(project).execute
-        end
       end
     end
 

config/feature_flags/development/group_authorized_agents.yml

----
-name: group_authorized_agents
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/69047
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/340166
-milestone: '14.3'
-type: development
-group: group::configure
-default_enabled: true

doc/user/clusters/agent/repository.md

@@ -153,11 +153,6 @@ gitops:
 
 > [Introduced](https://gitlab.com/groups/gitlab-org/-/epics/5784) in GitLab 14.3.
 
-FLAG:
-On self-managed GitLab, by default this feature is available. To hide the
-feature, ask an administrator to [disable the feature flag](../../../administration/feature_flags.md) named `group_authorized_agents`. On
-GitLab.com, this feature is available.
-
 If you use the same cluster across multiple projects, you can set up the CI/CD Tunnel
 to grant the Agent access to one or more groups. This way, all the projects that belong
 to the authorized groups can access the same Agent. This enables you to save resources and

lib/api/ci/jobs.rb

@@ -189,18 +189,10 @@ module API
 
           pipeline = current_authenticated_job.pipeline
           project = current_authenticated_job.project
-
-          allowed_agents =
-            if Feature.enabled?(:group_authorized_agents, project, default_enabled: :yaml)
           agent_authorizations = Clusters::AgentAuthorizationsFinder.new(project).execute
-              Entities::Clusters::AgentAuthorization.represent(agent_authorizations)
-            else
-              associated_agents = Clusters::DeployableAgentsFinder.new(project).execute
-              Entities::Clusters::Agent.represent(associated_agents)
-            end
 
           {
-            allowed_agents: allowed_agents,
+            allowed_agents: Entities::Clusters::AgentAuthorization.represent(agent_authorizations),
             job: Entities::Ci::JobRequest::JobInfo.represent(current_authenticated_job),
             pipeline: Entities::Ci::PipelineBasic.represent(pipeline),
             project: Entities::ProjectIdentity.represent(project),

spec/finders/clusters/deployable_agents_finder_spec.rb

-# frozen_string_literal: true
-
-require 'spec_helper'
-
-RSpec.describe Clusters::DeployableAgentsFinder do
-  describe '#execute' do
-    let_it_be(:agent) { create(:cluster_agent) }
-
-    let(:project) { agent.project }
-
-    subject { described_class.new(project).execute }
-
-    it { is_expected.to contain_exactly(agent) }
-  end
-end

spec/models/ci/pipeline_spec.rb

@@ -4610,22 +4610,5 @@ RSpec.describe Ci::Pipeline, :mailer, factory_default: :keep do
       expect(pipeline.authorized_cluster_agents).to contain_exactly(agent)
       expect(pipeline.authorized_cluster_agents).to contain_exactly(agent) # cached
     end
-
-    context 'group_authorized_agents feature flag is disabled' do
-      let(:finder) { double(execute: [agent]) }
-
-      before do
-        stub_feature_flags(group_authorized_agents: false)
-      end
-
-      it 'retrieves agent records from the legacy finder and caches the result' do
-        expect(Clusters::DeployableAgentsFinder).to receive(:new).once
-          .with(pipeline.project)
-          .and_return(finder)
-
-        expect(pipeline.authorized_cluster_agents).to contain_exactly(agent)
-        expect(pipeline.authorized_cluster_agents).to contain_exactly(agent) # cached
-      end
-    end
   end
 end

spec/requests/api/ci/jobs_spec.rb

@@ -187,14 +187,12 @@ RSpec.describe API::Ci::Jobs do
     let(:job) { create(:ci_build, :artifacts, pipeline: pipeline, user: api_user, status: job_status) }
     let(:job_status) { 'running' }
     let(:params) { {} }
-    let(:group_authorized_agents_enabled) { true }
 
     subject do
       get api('/job/allowed_agents'), headers: headers, params: params
     end
 
     before do
-      stub_feature_flags(group_authorized_agents: group_authorized_agents_enabled)
       allow(Clusters::AgentAuthorizationsFinder).to receive(:new).with(project).and_return(authorizations_finder)
 
       subject
@@ -247,30 +245,6 @@ RSpec.describe API::Ci::Jobs do
           ])
         end
       end
-
-      context 'group_authorized_agents feature flag is disabled' do
-        let(:group_authorized_agents_enabled) { false }
-        let(:agents_finder) { double(execute: [associated_agent]) }
-
-        before do
-          allow(Clusters::DeployableAgentsFinder).to receive(:new).with(project).and_return(agents_finder)
-        end
-
-        it 'returns agent info', :aggregate_failures do
-          expect(response).to have_gitlab_http_status(:ok)
-
-          expect(json_response.dig('job', 'id')).to eq(job.id)
-          expect(json_response.dig('pipeline', 'id')).to eq(job.pipeline_id)
-          expect(json_response.dig('project', 'id')).to eq(job.project_id)
-          expect(json_response.dig('user', 'username')).to eq(api_user.username)
-          expect(json_response['allowed_agents']).to match_array([
-            {
-              'id' => associated_agent.id,
-              'config_project' => hash_including('id' => associated_agent.project_id)
-            }
-          ])
-        end
-      end
     end
 
     context 'when user is anonymous' do