In this chapter, we reviewed the Heroku app lifecycle and learned how an app goes from the stage of creation to the stage of deployment and finally to the stage of monitoring and optimization. We looked at the Heroku CLI—the way most developers issue commands to create and run apps on the platform. Then, we familiarized ourselves with the Foreman tool, which is used to run your apps locally before pushing them to the Heroku platform. Using Foreman saves you a lot of trouble by helping you understand the app characteristics while in development and by helping you to make the right choices in terms of sizing and configuration before you take your app to production. Finally, we looked at Heroku's web UI for app execution and management; that is, the Heroku dashboard. We specifically looked at those aspects of the dashboard that deal with running an app on the Heroku platform—be it managing your app resources or looking at the activity log to troubleshooting app issues or running production...