Create Learn GitLab project

And redirect to experience_level page

ee/app/controllers/registrations/projects_controller.rb

@@ -15,7 +15,8 @@ module Registrations
       @project = ::Projects::CreateService.new(current_user, project_params).execute
 
       if @project.saved?
-        redirect_to project_path(@project)
+        create_learn_gitlab_project
+        redirect_to users_sign_up_experience_level_path
       else
         render :new
       end
@@ -23,6 +24,16 @@ module Registrations
 
     private
 
+    def create_learn_gitlab_project
+      File.open(learn_gitlab_template_path) do |archive|
+        ::Projects::GitlabProjectsImportService.new(current_user, namespace_id: @project.namespace_id, file: archive, name: s_('Learn GitLab')).execute
+      end
+    end
+
+    def learn_gitlab_template_path
+      Rails.root.join('vendor', 'project_templates', 'learn_gitlab.tar.gz')
+    end
+
     def check_experiment_enabled
       access_denied! unless experiment_enabled?(:onboarding_issues)
     end

ee/spec/controllers/registrations/projects_controller_spec.rb

@@ -4,7 +4,7 @@ require 'spec_helper'
 
 describe Registrations::ProjectsController do
   let_it_be(:user) { create(:user) }
-  let_it_be(:namespace) { create(:group, path: 'group-path') }
+  let_it_be(:namespace) { create(:group) }
 
   describe 'GET #new' do
     subject { get :new }
@@ -50,7 +50,7 @@ describe Registrations::ProjectsController do
   describe 'POST #create' do
     subject { post :create, params: { project: params } }
 
-    let(:params) { { namespace_id: namespace.id, name: 'Project name', path: 'project-path', visibility_level: Gitlab::VisibilityLevel::PRIVATE } }
+    let(:params) { { namespace_id: namespace.id, name: 'New project', path: 'project-path', visibility_level: Gitlab::VisibilityLevel::PRIVATE } }
 
     context 'with an unauthenticated user' do
       it { is_expected.to have_gitlab_http_status(:redirect) }
@@ -64,12 +64,15 @@ describe Registrations::ProjectsController do
         stub_experiment_for_user(onboarding_issues: true)
       end
 
-      it 'creates a project' do
-        expect { subject }.to change { Project.count }.by(1)
-      end
+      it 'creates a new project, a "Learn GitLab" project and redirects to the experience level page' do
+        expect { subject }.to change { namespace.projects.pluck(:name) }.from([]).to(['New project', s_('Learn GitLab')])
 
-      it { is_expected.to have_gitlab_http_status(:redirect) }
-      it { is_expected.to redirect_to('/group-path/project-path') }
+        Sidekiq::Worker.drain_all
+
+        expect(subject).to have_gitlab_http_status(:redirect)
+        expect(subject).to redirect_to(users_sign_up_experience_level_path)
+        expect(namespace.projects.find_by_name(s_('Learn GitLab'))).to be_import_finished
+      end
 
       context 'when the project cannot be saved' do
         let(:params) { { name: '', path: '' } }

lib/gitlab/experimentation.rb

@@ -12,8 +12,8 @@
 #
 # To enable the experiment for 10% of the users:
 #
-# chatops: `/chatops run feature set experiment_key_experiment_percentage 10 --actors`
-# console: `Feature.enable_percentage_of_actors(:experiment_key_experiment_percentage, 10)`
+# chatops: `/chatops run feature set experiment_key_experiment_percentage 10`
+# console: `Feature.enable_percentage_of_time(:experiment_key_experiment_percentage, 10)`
 #
 # To disable the experiment:
 #
@@ -26,7 +26,7 @@
 # console: `Feature.get(:experiment_key_experiment_percentage).percentage_of_time_value`
 #
 
-# TODO: rewrite that
+# TODO: see https://gitlab.com/gitlab-org/gitlab/-/issues/217490
 module Gitlab
   module Experimentation
     EXPERIMENTS = {