Implement PipelineBridge service

ee/app/services/ci/pipeline_bridge_service.rb

+# frozen_string_literal: true
+
+module Ci
+  class PipelineBridgeService < ::BaseService
+    def execute(pipeline)
+      pipeline.bridged_jobs.each do |bridged_job|
+        bridged_job.update(status: pipeline.status)
+      end
+    end
+  end
+end

ee/spec/services/ci/pipeline_bridge_service_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Ci::PipelineBridgeService do
+  let(:user) { create(:user) }
+  let(:project) { create(:project) }
+  let(:pipeline) { create(:ci_pipeline, :success, project: project) }
+
+  describe '#execute' do
+    subject { described_class.new(project, user).execute(pipeline) }
+
+    context 'when pipeline has bridged jobs' do
+      let(:bridge) { create(:ci_bridge, status: :pending) }
+
+      before do
+        pipeline.bridged_jobs << bridge
+      end
+
+      it 'updates the bridge status with the pipeline status' do
+        expect { subject }.to change { bridge.status }.from('pending').to('success')
+      end
+    end
+  end
+end