Check if license allows the use of Deploy Board feature

app/controllers/projects/environments_controller.rb

 class Projects::EnvironmentsController < Projects::ApplicationController
   layout 'project'
   before_action :authorize_read_environment!
+  before_action :authorize_read_deploy_board!, only: :status
   before_action :authorize_create_environment!, only: [:new, :create]
   before_action :authorize_create_deployment!, only: [:stop]
   before_action :authorize_update_environment!, only: [:edit, :update]

app/policies/project_policy.rb

@@ -73,6 +73,10 @@ class ProjectPolicy < BasePolicy
     can! :read_environment
     can! :read_deployment
     can! :read_merge_request
+
+    if License.current&.add_on?('GitLab_DeployBoard')
+      can! :read_deploy_board
+    end
   end
 
   # Permissions given when an user is team member of a project

app/serializers/environment_entity.rb

@@ -39,6 +39,7 @@ class EnvironmentEntity < Grape::Entity
   end
 
   expose :rollout_status_path, if: ->(environment, _) { environment.deployment_service_ready? } do |environment|
+    can?(request.user, :read_deploy_board, environment.project) &&
       status_namespace_project_environment_path(
         environment.project.namespace,
         environment.project,

spec/controllers/projects/environments_controller_spec.rb

@@ -11,6 +11,8 @@ describe Projects::EnvironmentsController do
   end
 
   before do
+    allow_any_instance_of(License).to receive(:add_on?).and_return(false)
+
     project.team << [user, :master]
 
     sign_in(user)
@@ -27,6 +29,8 @@ describe Projects::EnvironmentsController do
 
     context 'when requesting JSON response for folders' do
       before do
+        allow_any_instance_of(Environment).to receive(:deployment_service_ready?).and_return(true)
+
         create(:environment, project: project,
                              name: 'staging/review-1',
                              state: :available)
@@ -44,15 +48,19 @@ describe Projects::EnvironmentsController do
 
       context 'when requesting available environments scope' do
         before do
+          allow_any_instance_of(License).to receive(:add_on?).with('GitLab_DeployBoard').and_return(true)
+
           get :index, environment_params(format: :json, scope: :available)
         end
 
         it 'responds with a payload describing available environments' do
           expect(environments.count).to eq 2
           expect(environments.first['name']).to eq 'production'
+          expect(environments.first['latest']['rollout_status_path']).to be_present
           expect(environments.second['name']).to eq 'staging'
           expect(environments.second['size']).to eq 2
           expect(environments.second['latest']['name']).to eq 'staging/review-2'
+          expect(environments.second['latest']['rollout_status_path']).to be_present
         end
 
         it 'contains values describing environment scopes sizes' do
@@ -78,6 +86,19 @@ describe Projects::EnvironmentsController do
           expect(json_response['stopped_count']).to eq 1
         end
       end
+
+      context 'when license does not has the GitLab_DeployBoard add-on' do
+        before do
+          allow_any_instance_of(License).to receive(:add_on?).with('GitLab_DeployBoard').and_return(false)
+
+          get :index, environment_params(format: :json)
+        end
+
+        it 'does not return the rollout_status_path attribute' do
+          expect(environments.first['latest']['rollout_status_path']).to be_blank
+          expect(environments.second['latest']['rollout_status_path']).to be_blank
+        end
+      end
     end
   end
 
@@ -233,6 +254,7 @@ describe Projects::EnvironmentsController do
       let(:project) { create(:kubernetes_project) }
 
       before do
+        allow_any_instance_of(License).to receive(:add_on?).with('GitLab_DeployBoard').and_return(true)
         allow_any_instance_of(Environment).to receive(:deployment_service_ready?).and_return(true)
       end
 
@@ -256,6 +278,18 @@ describe Projects::EnvironmentsController do
         expect(response.status).to eq(200)
       end
     end
+
+    context 'when license does not has the GitLab_DeployBoard add-on' do
+      before do
+        allow_any_instance_of(License).to receive(:add_on?).with('GitLab_DeployBoard').and_return(false)
+      end
+
+      it 'does not return any data' do
+        get :status, environment_params
+
+        expect(response).to have_http_status(:not_found)
+      end
+    end
   end
 
   describe 'GET #metrics' do

spec/requests/git_http_spec.rb

@@ -292,7 +292,7 @@ describe 'Git HTTP requests', lib: true do
 
         it 'responds with status 403' do
           msg = 'No GitLab Enterprise Edition license has been provided yet. Pushing code and creation of issues and merge requests has been disabled. Ask an admin to upload a license to activate this functionality.'
-          allow(License).to receive(:current).and_return(false)
+          allow(License).to receive(:current).and_return(nil)
 
           upload(path, env) do |response|
             expect(response).to have_http_status(403)

spec/serializers/environment_entity_spec.rb

 require 'spec_helper'
 
 describe EnvironmentEntity do
+  let(:user) { create(:user) }
+  let(:environment) { create(:environment) }
+
   let(:entity) do
-    described_class.new(environment, request: double(user: nil))
+    described_class.new(environment, request: double(user: user))
   end
 
-  let(:environment) { create(:environment) }
   subject { entity.as_json }
 
+  before do
+    allow_any_instance_of(License).to receive(:add_on?).and_return(false)
+
+    environment.project.team << [user, :master]
+  end
+
   it 'exposes latest deployment' do
     expect(subject).to include(:last_deployment)
   end
@@ -38,6 +46,7 @@ describe EnvironmentEntity do
 
   context 'with deployment service ready' do
     before do
+      allow_any_instance_of(License).to receive(:add_on?).with('GitLab_DeployBoard').and_return(true)
       allow(environment).to receive(:deployment_service_ready?).and_return(true)
     end
 
@@ -47,4 +56,15 @@ describe EnvironmentEntity do
       expect(subject[:rollout_status_path]).to eq(expected)
     end
   end
+
+  context 'when license does not has the GitLab_DeployBoard add-on' do
+    before do
+      allow_any_instance_of(License).to receive(:add_on?).with('GitLab_DeployBoard').and_return(false)
+      allow(environment).to receive(:deployment_service_ready?).and_return(true)
+    end
+
+    it 'does not expose rollout_status_path' do
+      expect(subject[:rollout_status_path]).to be_blank
+    end
+  end
 end