Deploy RoR on GAE and Codeship CI/CD pipeline

I have the time to gain knowledge in deploying a Ruby on Rails app to Google Cloud Platform. Creating a CI/CD pipeline with CloudBees Codeship to Google App Engine (GAE). GAE is a very simplistic way of deploying services that. More information on GAE can be found here. GAE DocsGAE is very easy to do a blue/green canary upgrade and many other features. There's quite a bit of working gears per say in this deployment but once done, any changes to the code will be simplistically. Only down side I have to this is that the cloudbuild takes forever to build and if you had to change one line of code, you'll be waiting for at least two hours.