gitlab-org--gitlab-foss/app/services/clusters/create_service.rb

module Clusters
  class CreateService < BaseService
    def execute(access_token)
      params['gcp_machine_type'] ||= GoogleApi::CloudPlatform::Client::DEFAULT_MACHINE_TYPE

      cluster_params =
        params.merge(user: current_user)

      project.create_cluster(cluster_params).tap do |cluster|
        ClusterProvisionWorker.perform_async(cluster.id) if cluster.persisted?
      end
    end
  end
end